Periodic Videos

The Professor - donning his clip-on shades - is at Bondi Beach in Australia for a discussion about sunscreen. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

The Professor shows us a tremendous reaction - but forgets to switch off the department smoke alarm. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture)

Help one of our viewers find chemistry names for her soon-to-be-born pet rabbits. Email or email periodicvideos at gmail. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

A discussion of the use of silicone in medical implants. This follows recent news reports about problems with a certain type of breast implant. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

Continuing our (occasional) series responding to viewer questions... How or why did our team end up becoming professional chemists? More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran Brady other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture)

We enjoy mixed success with a series of reactions involving jelly babies in potassium chlorate. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

Professor Martyn Poliakoff wins the prestigious Ron Nyholm Prize (with a little help from our YouTube viewers) and tells how he almost met the famous chemist for whom the award was named. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture)

You can support us on Patreon: https://www.patreon.com/periodicvideos See also Brady's Objectivity series: http://bit.ly/Objectivity (science treasures) Responding to another viewer question, some team members recall the most dangerous chemical they have handled. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

Treasures at the Royal Society are protected from fire by a combination of carbon dioxide, nitrogen and argon - as Professor Poliakoff discovers. The Royal Society website is: http://royalsociety.org/ (thanks as always to Rupert!) More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture)

The Professor shows us his first periodic table. We'd love to see your periodic tables. Email pics to periodicvideos@gmail.com Higher res photo of the Prof's can be found at: http://www.flickr.com/photos/periodicvideos/6836283893/in/photostream More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

Another video from our Brazil trip... The Caipirinha is Brazil's national cocktail and it is sugary to its core. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture)

What would our chemists have like to have done - if they weren't chemists of course! Featuring the periodicvideos team at the University of Nottingham. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

A short film Brady Haran made for BBC Inside Out (East Midlands) which broadcast on 27 February, 2012. This is the full un-cut version.... The BBC broadcast version was slightly shorter.

Click: http://www.periodicvideos.com/captions/ (includes info about English and other language captions too) More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

We're back with an updated element video - and it is the extremely expensive metal rhenium, often used in aircraft engines. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

Tellurium is found in three distant stars. Professor Martyn Poliakoff comments on this MIT paper. More on elements being created in stars at this Sixty Symbols video: http://www.youtube.com/watch?v=nhhdkYFmd7A We assume you already subscribe to Sixty Symbols - but you should also be following Deep Sky Videos at: http://www.youtube.com/DeepSkyVideos More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran MIT press release at: http://web.mit.edu/press/2012/heavy-metal-stars-tellurium.html

The recipe is changed for Coke and Pepsi (in the US). It is because of the chemical 4-methylimidazole, which would require the companies to put a cancer warning on their labels. In this video we warn you not to drink more than 1,000 cans of the drink in a single day! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

A long-awaited update to our Zirconium video, made possible by two samples donated to The Professor (thanks to company Lipmann Walton and technician Andres Tretiakov). More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

David Newman's Song on YouTube: http://www.youtube.com/watch?v=W2Wwf1UVdFo - Our own Tom Lehrer tribute song: http://www.youtube.com/watch?v=afFw91fvNJM - A periodic rap: http://www.youtube.com/watch?v=TF1xxPDS7Pk - Music montage of chemical reactions: http://www.youtube.com/watch?v=UkBhW8Kj3r8 Our thanks to David Newman for permission to showcase his song. MORE LINKS--- Main website: http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos Periodic Videos films are by video journalist Brady Haran

The Professor shows us how liquid helium is recycled at his university - and comments on reports that party balloons are causing supply problems. Footage from Brady's Large Hadron Collider trip is being regularly posted at http://www.youtube.com/playlist?list=PL7DEC46BD7058D7BB (on our sister Sixty Symbols channel) More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

A viewer asks our chemist what they think the most interesting metal would be for a wedding ring... and it poses a bigger challenge than you'd expect. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

We're looking at the original lamp designed by Sir Humphry Davy. It revolutionized safety in coal mines and prevented countless methane explosions. EXTRA INTERVIEW FOOTAGE: http://www.youtube.com/watch?v=hFiZ-2MLwM4 Our thanks to The Royal Society for letting us film the lamp. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

We etch a tiny portrait of Queen Elizabeth II onto a diamond - to celebrate her diamond jubilee (60 years on the throne). The smallest portrait is just 46 microns high. With thanks to Michael Fay and Christopher Parmenter at the University of Nottingham's Nottingham Nanotechnology and Nanoscience Centre. Images at: http://www.flickr.com/photos/periodicvideos/sets/72157629419565698/ Brady's blog about this video at: http://periodicvideos.blogspot.co.uk/2012/04/queen-on-diamond.html Speaking in the video is Professor Martyn Poliakoff. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Thanks everyone... if you feel inclined to vote, the link is: http://pv.webbyawards.com/ballot/113 We're up against some of the big boys! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

A thoughtless moment with copper chloride cost The Professor an entire carpet! Featuring Professor Martyn Poliakoff from the University of Nottingham's School of Chemistry. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Sam combines calcium carbide and ice to produce acetylene - while The Professor discusses old-fashioned car headlights. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Our Molecular Videos series is sponsored by Sigma-Aldrich

Just when you thought The Professor could not get more excited about plastic bottles.... During our visit to Brazil, we stumbled over this interesting use of plastic bottles - as makeshift molecular models! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Our chemists share their favourite music and books (science and non-science) - hey, it was a viewer question! Take from it what you will? Here is the samovar video The Prof mentions: http://www.youtube.com/watch?v=iUDU8vjxVeI More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Here's a bit about our trip to New York and see Numberphile at http://www.youtube.com/numberphile More Webby videos and speeches, etc, at http://watch.webbyawards.com/webbyawards/ More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

After a couple of FAILS, The Professor stumbles over a "magical" reaction involving hydrogen peroxide and potassium permanganate. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

We're at Sellafield, in the "active" area of its National Nuclear Laboratory. Getting up close to Uranium, Plutonium, Neptunium and Americium. More detailed videos on those elements coming soon. In this video are Martyn Poliakoff and Steve Liddle from the University of Nottingham, along with Mark Sarsfield and Chris Maher from NNL. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

Element 114 now has an official name and symbol on the periodic table. And Brady asks the question, would you rather win a Nobel Prize or have an element named after you? More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

Newer Livermorium video: https://youtu.be/YWKlqO9niuY (interview with a co-founder and namer) Element 116 has been given the name Livermorium - but it could easily have been named after Nottingham where the periodicvideos are made!!! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Behind the scenes on visit from fellow YouTuber Michael Stevens. His channel is http://www.youtube.com/user/vsauce - if you've come here from vsauce already, please subscribe to periodicvideos too. More on some reactions in this video: AQUA REGIA: http://www.youtube.com/watch?v=iwnKU89CCdI BARKING DOG: http://www.youtube.com/watch?v=mGMR72X8V-U

You can support us on Patreon: https://www.patreon.com/periodicvideos See also Brady's Objectivity series: http://bit.ly/Objectivity (science treasures) We're given special access to various plutonium compounds at the National Nuclear Laboratory, in Sellafield. A chance to meet the "Hannibal Lecter of the Periodic Table". With thanks to Mark Sarsfield and Chris Maher... http://www.nnl.co.uk/ In part this video shows how plutonium is extracted from nuclear fuel waste. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Researchers have captured the "shadow" of an Ytterbium atom. See the Griffith University press release at http://www.griffith.edu.au/ More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

In our first video about caffeine, Dr Rob Stockman extracts the molecule from six cups of coffee. Video also features Professor Martyn Poliakoff and Dr Samantha Tang. Necklace supplied by http://arohasilhouettes.com/ More about our Webby win: http://periodicvideos.blogspot.co.uk/2012/05/some-photos-from-webbys.html More on caffeine soon... More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Martyn Poliakoff pays tribute to former colleague Harold Booth. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran

A gimmicky molecule created earlier this year was a great piece of science - but why not link the rings? This is the question posed by Professor Martyn Poliakoff as he discusses catenanes. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

A newly-published paper reveals how highly-reactive Fluorine Gas has been found in nature, due do a process which takes place within fluorite. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Professor Martyn Poliakoff explains it's not just athletes who win medals - or who have a competitive streak! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

Our very own "Mr Uranium" - Dr Steve Liddle - publishes a paper in Science about a pioneering piece of chemistry involving a bond between Uranium and Nitrogen. A bit of extra footage from this interview at http://www.youtube.com/watch?v=2lfVXn4lxag More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Our series of short videos will be uploaded throughout August 20, 2012. Be subscribed to follow them! And watch our tribute to Jons Jacob Berzelius, the grandfather of chemistry. More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Hydrogen Balloon Explosion - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=6rdmpx39PRk NOTE FROM THE PROFESSOR: The main reaction is quite simple. 2H2 + O2 → 2H2O. However, the balloon is made from rubber, which is a complex molecule containing principally containing carbon and hydrogen. The heat of the hydrogen burning probably sets fire to the rubber generating CO2 and water. The orange colour probably comes from the burning rubber. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Potassium Permanganate Colour Change - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=OLUyeCC-2Ko NOTE FROM THE PROFESSOR: The colour change is caused by the purple permanaganate ions [MnO4]- gaining electrons to form colourless Mn(+2) ions. The oxygen from the permanganate and the H2O2 are converted to H2O and O2 (which bubbles off). The extra H atoms come from the sulphuric acid H2SO4. Both the K and Mn end up as sulfates. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Gold in Aqua Regia - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=iwnKU89CCdI NOTE FROM THE PROFESSOR: Aqua Regia is a really complicated mixture. The key point is that together HCl and HNO3 are more effective oxidizing agents than they are individually because they react together to form a variety of ions. These can then react with the gold, enabling it to lose electrons to form bonds with chlorine. The result is a solution a mixture of ions with different ratios of Au to Cl atoms. I still find the dissolving of gold a magical reaction to watch. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Calcium Carbide and Acetylene - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=KQSLpuVZK9Y NOTE FROM THE PROFESSOR: Calcium carbide reacts with water to form acetylene (also known as ethyne) and Calcium hydroxide. The fact that the water is present as ice doesn't matter. A combination of the heat of the reaction and the presence of salts causes the ice to melt and the reaction involves liquid water. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Aluminium in Chlorine Gas - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=BXCfBl4rmh0 NOTE FROM THE PROFESSOR: Cl2 reacts with Al to form aluminium trichloride, which normally exists as Al2Cl6. In the high temperature of this reaction, things may be more complicated. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Copper Sulfate Colour Change - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=kop1sWzTK-I NOTE FROM THE PROFESSOR: This reaction converts a blue solution of CuSO4 to a red precipitate of Cuprous oxide Cu2O. It does so be oxidizing the tartrate ion (which contains C, H and O) to CO2 and H2O. Therefore, there are not enough anions in the solution for both the Cu and K to exist as salts and the Cu is converted into its oxide See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Zirconium Powder in Flame - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=gNJE2MPktvg NOTE FROM THE PROFESSOR: The Zr reacts with oxygen in the air to make zirconium oxide in a very exothermic reaction (it gives out a lot of heat). The white light comes from very hot particles of the oxide. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Caesium in Water - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=5aD6HwUE2c0 NOTE FROM THE PROFESSOR: The reaction is 2Cs + 2H2O → 2CsOH + H2. However, the H2 can then react with O2 in the air to explode. Also, unlike the other alkali metals, except perhaps Francium, Cs is a liquid just above room temperature so the initial heat of reaction will melt the metal and one has liquid metal reacting with the water. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Potassium, Diethyl Ether and Water - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=z1z0AVvY9yM NOTE FROM THE PROFESSOR: This reaction is the same as that of K with water, 2K + 2H2O → 2KOH + H2. The difference is that diethyl ether floats on the surface of the water (it's less dense) and it has a very low boiling point so it's vapour easily catches fire to form CO2 and more H2O. Once it's burning, some of the K is vapourized and gives the flame a lilac colour. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Fluorine Gas and Sulfur - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=vtWp45Eewtw NOTE FROM THE PROFESSOR: This is a very violent reaction so many things may be going on. In the molecular structure of solid sulfur, one finds S8 rings. At the simplest level, these react to form SF6; S8 + 48F2 → 8SF6. However, this reaction is involves a jet of F2 gas so there may not be enough fluorine and some SF4 may be formed. SF4 can react violently with water in the air to form SO2 and HF. In addition, the reaction heats the sulfur causing it to melt and the S8 molecules to break up forming longer chains of sulfur atoms which have a brownish colour. This hot sulfur can also react with O2 in the air to burn to form SO2. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Thermite Reaction - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=euQUgp5AY-Y NOTE FROM THE PROFESSOR: In this reaction aluminium is converted to aluminium oxide and iron oxide to iron. Al + Fe2O3 → Al2O3 + Fe. The interaction between Al and O is stronger than that between Fe and O so the reaction liberates a large amount of heat. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Copper Chloride and Aluminium - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=OQPwPGDQqzs NOTE FROM THE PROFESSOR: 13. This is another dirty reaction. The simple explanation is that Copper chloride reacts with Al to make Cu plus aluminium chloride. And you can see the reddish colour of the metallic copper at the end. The reason that it's complicated is that Al chloride (Al2Cl6) can itself react with water to make Al2O3 plus HCl and the HCl can then react with the cupcake case See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Magnesium Burns in Carbon Dioxide - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=0dSMzg0UPPo NOTE FROM THE PROFESSOR: The Mg effectively extracts the oxygen from CO2. 2Mg + CO2 → 2MgO + 2C. Solid CO2 and MgO are both white but elemental Carbon is black. The reason why the reaction is so violent is that solid CO2 contains molecules of CO2 which interact weakly while solid MgO is made up of Mg(2+) and O(2-) ions which because of their charges interact very strongly giving out large amounts of energy as the solid MgO is formed. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Diethyl Zinc in Air - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=99wPiMb-k0o NOTE FROM THE PROFESSOR: The compound burns to form zinc oxide, CO2 and Water; Zn(C2H5)2 + 5O2 → ZnO + 4CO2 + 5H2O See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Dinitrogen Tetroxide and Aniline - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=bin_W1xVPfY NOTE FROM THE PROFESSOR: This is the reaction of aniline, C6H5NH2, with N2O4. The products are N2, H2O and CO2. The reaction is violent because N2O4 has a very weak N-N single bond while N2 has a very strong N-N triple bond. The formation of C=O bonds in CO2 releases further energy. This reaction was discovered at Nottingham about sixty years ago; rumour has it that the student who discovered it was injured in the process! See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

White Phosphorus - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=U6_-EUcswSc NOTE FROM THE PROFESSOR: 9. White phosphorus is made up of tetrahedral shaped P4 molecules with very strained (and weak) bonds. P4 reacts with oxygen to make a white solid containing P4O10 molecules, which confusingly is called "phosphorus pentoxide" (it's confusing because "pent" is derived from the word "five" in Greek). See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Cans in Acid and Base - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=WnPrtYUKke8 NOTE FROM THE PROFESSOR: In the UK, Coke cans (but not Pepsi) are made from aluminium. In HCl, the Al dissolves initially to form aluminium trichloride and probably after that H+ and [AlCl4]- ions. In NaOH, Al forms sodium aluminate See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Strontium Nitrate - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=d5ztPGrsgNQ NOTE FROM THE PROFESSOR: This is a mixture of reactions. You can think of it as KClO3 first decomposing to KCl and oxygen. The sugar which contains C, H and O then burns to give CO2 and H2O plus a lot of heat. The heat probably decomposes or vaporizes the Sr(NO3)2 and generates some Sr atoms in the gas phase. These hot Sr atoms give out red light. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Rubidium in Water - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=0XLGopBovoI NOTE FROM THE PROFESSOR: Rubidium reacts the same way are other alkali metals. 2Rb + 2H2O → 2RbOH + H2 and the hot H2 can burn/explode with O2 from the air. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Potassium in Water - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=pPdevJTGAYY NOTE FROM THE PROFESSOR: Potassium always seems to react particularly violently; 2K + 2H2O → 2KOH + H2. It may just be that we use bigger lumps of it or perhaps the melting point is just right for the metal to begin melting when the reaction is already going strongly. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Barking Dog chemical reaction - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=vsiPt3l6H3U NOTE FROM THE PROFESSOR: 4. The basic mixture is carbon disulfide CS2 plus nitrous oxide, N2O. The N2O decomposes and 2N2O → 2N2 + O2. This reaction needs heat to get it going but is then quite violent. The O2 Reacts with CS2 to make a mixture of CO2, SO2 and solid sulfur. Some of the sulfur and SO2 are formed in a so-called excited state (with a big excess of energy) and the energy is lost by emission of blue light. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 And an extra message for the complainers: http://periodicvideos.blogspot.co.uk/2012/08/berzeliusday.html More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Fluorine Gas and Charcoal - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=vtWp45Eewtw NOTE FROM THE PROFESSOR: This is again a complex reaction. On the simplest level F2 reacts with C for form CF4, the fluorine analogue of methane, CH4. However, the carbon gets very hot and probably some of it burns in air to make CO2. Also at these high temperatures other C/F compounds such as C2F6 as probably formed. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Calcium Chloride in Bunsen Flame - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=V9fuY8_ffFg NOTE FROM THE PROFESSOR: If you heat salts in a bunsen flame you varpourize some of the metal ions, in this case Calcium and some of the atoms have excess energy which they emit as light at particular wavelengths characteristic of that element. For Calcium this light is red but, as Debbie says, her sample of CaCl2 may have had some traces of NaCl in it. Na gives off yellow/orange light (you can see it in some street lamps) and Na is more volatile than Ca so even a little in her sample could nearly swamp the colour of the calcium in the flame. See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

Cheeseburger in Hydrochloric Acid - part of our "Berzelius Day" uploading 24 videos in 24 hours. Full video containing this reaction at: http://www.youtube.com/watch?v=NddZ5ftQb0Q NOTE FROM THE PROFESSOR: This reaction is a big mess, which is why it looks so funny. The underlying chemistry is hydrolysis (reaction of an organic compound with water) which is catalysed by the acid. The starch in the bun is hydrolysed to make first sugars (such a glucose) and then a complicated mixture of breakdown products. The fats in the cheese and the meat are probably hydrolysed too. The physical structure of the meat will be destroyed and some of the proteins will be denatured (their folding is disrupted) if not actually broken down. In the end, it's probably better just to enjoy the reaction than to worry too much about the chemistry. Just have fun!! See our 24 reactions playlist as it unfolds at: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 Berzelius Day explained: http://www.youtube.com/watch?v=wDXUDq2KLM4 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran http://www.bradyharan.com/

We're at the UK's National Nuclear Laboratory (Sellafield) for a look at some Americium. It is used in smoke detectors but could also be a key power-source for the future of space travel. With thanks to the National Nuclear Laboratory, especially Mark Sarsfield. http://www.nnl.co.uk/ More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists)

Microsoft experts showcase experimental software by using an Xbox Kinect to make a 3D scan of Sir Isaac Newton's Death Mask. The mask - cast from Newton's face after he died - is kept in the collection of The Royal Society in London. With thanks to Microsoft Research Cambridge, The Royal Society - and YouTuber AlanKey86 for the music. Professor Martyn Poliakoff is foreign secretary of The Royal Society. The Microsoft guys scanned him too! Our website is http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ AlanKey86: http://www.youtube.com/user/AlanKey86

Catch our list of Nobel Prize videos from over the years: http://bit.ly/periodicnobel Yes we got our hands on a Nobel Prize - but only for a few hours. It was loaned to us by the real winner, Sir Paul Nurse, as a prop for our Friday Evening Discourse at the Royal Institution. More about our big night at the RI: http://periodicvideos.blogspot.co.uk/2012/09/royal-audience-and-silent-rogue.html How did Sir Paul win his prize: http://www.nobelprize.org/nobel_prizes/medicine/laureates/2001/ More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Continuing our annual tradition of watching the Nobel Prize announcement and making a video in the immediate aftermath. This year's prize was awarded jointly to Robert Lefkowitz and Brian Kobilka "for studies of G-protein-coupled receptors". Our video features Professor Martyn Poliakoff and special guest Barrie Kellam from the University of Nottingham School of Chemistry. See our physics video on the 2012 prize at http://www.youtube.com/watch?v=UmxpUFxHlGg More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

Zinc and Sulfur combine in spectacular fashion to create Zinc Sulfide. Like these sort of reactions? Check our "reactions only" playlist: http://www.youtube.com/playlist?list=PL6E4F35510525FFF7 More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/

The mysterious Neil drops red-hot charcoal into a cauldron of liquid oxygen. More Halloween-themed science videos: http://www.youtube.com/playlist?list=PL9eEsN9D48mf8CIYU1wRnWak0lcAnJN1u More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

UPDATE: It's Nihonium... https://youtu.be/-HcSEKuYGM8 Japanese researchers confirm the discovery of element 113 - will we finally get a "J" on the periodic table? See this video dubbed in Japanese at http://www.youtube.com/watch?v=BwICyaIPjbA More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

イギリスの科学者の反応：日本の元素Uut（原子番号１１３）の生成が認定された -- Japanese-dubbed version of our 113 video. English version at http://youtu.be/VqKF1RSnuvo ポリオコッフ教授が原子番号１１３・Uutって言う新しく認定された元素を説明する。この元素は第一目の日本で合成された元素なので今回の放送は日本語に通訳されている。通訳者はロレッタ・スコットで、『毛虫ちゃん』って言うハンドルネームで日本語の動画を作り出しているので、もしよろしければご覧ください。 ビデオ編集：ブレディ・ハラン With thanks to http://www.youtube.com/user/kemushichan More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

Guy Fawkes Night in the UK is a time for bonfires and fireworks. Here's some "death mix" to shed light on things. Check out Destin's bonfire film at http://youtu.be/w-s3NTuw-To - it's worth a look. Zirconium video: http://www.youtube.com/watch?v=gNJE2MPktvg Strontium video: http://www.youtube.com/watch?v=d5ztPGrsgNQ Barium video: http://www.youtube.com/watch?v=9srJdQU3NOo Flame test video (bottled oxygen): http://www.youtube.com/watch?v=O3ZuimXdObE More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

The Prof is back in the lab with a Potassium Dichromate reaction and a story of lost fingers! More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

The Professor oversees the installation of a "blue plaque" for the late great Colonel BD Shaw. See out-takes from this video (and why Brady gets angry at truck drivers) at: http://www.youtube.com/watch?v=LN7BLUWBuBI More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

...and other tales from our visit to Berkeley. With thanks to the distinguished (and gracious) Darleane Hoffman and Alexander Pines. More videos from our trip to Berkeley will be coming soon, including more about Glenn Seaborg. Since filming, Prof Pines has informed me the huge device we filmed was in fact THE ACTUAL electromagnet used by Lawrence (not a replica)... And in the hurly burly of filming, he apologises for saying oscillating "magnetic" fields when in fact he meant oscillating "electric" fields! Even famous Profs say the wrong thing sometimes! Berkeley: http://www.berkeley.edu/index.html Thanks for the lift Henry: http://www.youtube.com/minutephysics More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff) http://www.youtube.com/PsyFile (Psychology stuff)

We get a close-up look at Neptunium during a visit to the National Nuclear Laboratory at Sellafield. This video features Mark Sarsfield from NNL - and periodicvideos regulars Steve Liddle and Martyn Poliakoff from the University of Nottingham. With thanks to NNL: http://www.nnl.co.uk/ More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff) http://www.youtube.com/PsyFile (Psychology stuff)

This was recorded on 3 December, 2012. The Professors (from left to right): Ed Copeland (sixtsymbols and numberphile) Martyn Poliakoff (periodicvideos) Mike Merrifield (sixtysymbols and deepskyvideos) Phil Moriarty (sixtysymbols and numberphile) All based at the University of Nottingham. http://www.youtube.com/periodicvideos (Chemistry stuff) http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths)

We're INSIDE a Gold Bullion Vault. You can support us on Patreon: https://www.patreon.com/periodicvideos The Bank of England protects about £197 billion ($315bn) worth of gold, according to the mostly recently published figures. Film by Brady Haran. Featuring Professor Martyn Poliakoff. Periodic Videos on Patreon: https://www.patreon.com/periodicvideos The vaults are off limits, but the Bank of England Museum will let you lift a real gold bar: http://bit.ly/TJ4BVk More of our videos about gold: http://bit.ly/Re3Lkp More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes)

Check these samples. Created solely from sounds recorded in our labs. Music/video by Dave & Adam - check their channel for more creations: http://bit.ly/boyinaband Behind the scenes (including interview with Dave and Adam): http://www.youtube.com/watch?v=h1HLJyFIcGY See Brady's previous collaboration with Dave from Boy in a Band - the Golden Ratio song for numberphile at http://www.youtube.com/watch?v=nBgQPSUTWVM More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) For detailed video about some of the reactions in this video, try these previous periodicvideos. The "burning ice" at the start: http://www.youtube.com/watch?v=KQSLpuVZK9Y Rubber hose frozen in liquid nitrogen: http://www.youtube.com/watch?v=zmvJ54kRpjg Bung popping out during prep for barking dog: http://www.youtube.com/watch?v=mGMR72X8V-U Hydrogen balloon explosion: http://www.youtube.com/watch?v=6rdmpx39PRk Dry ice in sink and bubbling: http://www.youtube.com/watch?v=fHlrkMILAZs Screaming jelly baby (pink fire in tube): http://www.youtube.com/watch?v=mIr4dLGwaVs C02 canon: http://www.youtube.com/watch?v=0dSMzg0UPPo Barking dog (blue flame in big tube): http://www.youtube.com/watch?v=NdWKj_SFqtE CO2 in film canisters: http://www.youtube.com/watch?v=0dSMzg0UPPo (Note: these are not the clips we recorded specially for the music video - rather they are longer videos in which they appear)

How Dave and Adam created out chemistry dusbtep video - see the main video at http://www.youtube.com/watch?v=TcvZL6fx-lU Visit Dave and Adam's channel at: http://bit.ly/boyinaband More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)

Filming chemistry with a high-speed camera. MORE VIDEOS HERE: http://bit.ly/chemslomo Reactions filmed with a Phantom Miro. We used this: http://www.visionresearch.com/Products/High-Speed-Cameras/Miro-M310/ MASSIVE thanks to Destin from Smarter Every Day who came over and did the high-speed filming for us: http://www.youtube.com/smartereveryday (subscribe to his channel) More chemistry at http://www.periodicvideos.com/ Follow us on Facebook at http://www.facebook.com/periodicvideos And on Twitter at http://twitter.com/periodicvideos From the School of Chemistry at The University of Nottingham: http://www.nottingham.ac.uk/chemistry/index.aspx Periodic Videos films are by video journalist Brady Haran: http://www.bradyharan.com/ Music by Appe: https://soundcloud.com/sibirish_musik Brady's other channels include: http://www.youtube.com/sixtysymbols (Physics and astronomy) http://www.youtube.com/numberphile (Numbers and maths) http://www.youtube.com/DeepSkyVideos (Space stuff) http://www.youtube.com/nottinghamscience (Science and behind the scenes) http://www.youtube.com/foodskey (Food science) http://www.youtube.com/BackstageScience (Big science facilities) http://www.youtube.com/favscientist (Favourite scientists) http://www.youtube.com/bibledex (Academic look at the Bible) http://www.youtube.com/wordsoftheworld (Modern language and culture) http://www.youtube.com/PhilosophyFile (Philosophy stuff)