NGC 6872 has recently been named the largest spiral galaxy observed - or "little bit of a fraud"? Professor Mike Merrifield is an expert on galaxies at the University of Nottingham. Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html About the book on Mike's shelf: http://periodicvideos.blogspot.co.uk/2011/02/atlas-of-creation.html

Even the professional understanding of quantum mechanics is "embarrassing", says cosmologist Sean Carroll. Read Sean's blog on this subject at http://bit.ly/V1SUpV and the full paper at http://arxiv.org/abs/1301.1069 We filmed with Sean during his visit to the University of Nottingham and will have more videos with him coming soon. Check out Sean's website (and his excellent books) at: http://preposterousuniverse.com/ Read his Higgs Boson book: http://amzn.to/Nvdn8P Visit the SIxty Symbols website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

What's it like working at CERN and the Large Hadron Collider - and how do you get a job there? Questions many of you wanted asked during our LHC visit! More from our LHC visit: http://www.youtube.com/playlist?list=PL7DEC46BD7058D7BB This video features David Barney and Steven Goldfarb, from CMS and ATLAS respectively. CERN: http://public.web.cern.ch/public/ Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project for The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

A paper describing the largest structure in the Universe (a collection of quasars) may cast new light on homogeneity. Largely unedited interviews at http://youtu.be/YIK8luKW3mk (apprx 22 mins). The paper is at: http://arxiv.org/abs/1211.6256 Discussing it here are Mike Merrifield and Ed Copeland. Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

New observations seem to settle the question of where cosmic rays come from. Dr Tony Padilla discusses the research. See the paper at: http://arxiv.org/pdf/1302.3307v1.pdf COMMENT FROM TONY: "My comments at 1.30 were a bit hasty. Cosmic rays do not pass through the earth. Most collide in the upper atmosphere. I was actually thinking of the LHC safety debate. If they exist, mini blackholes produced by cosmic ray collisions on earth would slip straight through because the earth isn't dense enough. But not the protons themselves." Tony tweets at https://twitter.com/DrTonyPadilla (lots of good science news, links and jokes mixed with some over emotional football commentary) Nasa write-up at: http://www.nasa.gov/home/hqnews/2013/feb/HQ_13-052_FERMI_Supernova.html Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Chatting with Michael Stevens, the man behind (and in front of) the successful science explanation channel Vsauce - http://www.youtube.com/vsauce The Shining clip: http://www.youtube.com/watch?v=KmkVWuP_sO0 The Ferris clip: http://www.youtube.com/watch?v=ZLq2oh82pY8 The paint clip: http://www.youtube.com/watch?v=OW5wB8rJ8Zc Michael on periodicvideos: http://www.youtube.com/watch?v=vsiPt3l6H3U Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Trains, tunnels, muons and giant guillotines - strange things happen when you travel close to the speed of light. Discussing relativity, time dilation and Lorentz contraction. Watch our first Gamma video at: http://www.youtube.com/watch?v=jlJNsRZ4WxI This video features Professor Mike Merrifield from the University of Nottingham - Mike tweets at https://twitter.com/ProfMike_M Animation by Drew Mokris - http://www.spinnerdisc.com Sounds effects from Freesound.org with thanks to: Dymewiz ad yottasounds Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html Atlas of Creation on shelf explained: https://www.youtube.com/watch?v=Dylv1EiMejI

Temperatures below absolute zero are HOTTER than those above, explains Professor Philip Moriarty. More Daisy pics: http://periodicvideos.tumblr.com/post/45179614982/professor-moriartys-dog-daisy-stars-in-the Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Sean's book on this: http://amzn.to/Nvdn8P More from our recent chat with cosmologist Sean Carroll. His book about the Higgs Boson is called The Particle at the End of Universe. Check his website for more: http://preposterousuniverse.com/ See loads of videos from our visit to the LHC and other CERN sites: http://www.youtube.com/playlist?list=PL7DEC46BD7058D7BB Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Professor Ed Copeland on the latest news to come from the Planck project - talking about the Big Bang and the resulting microwave radiation. More from Planck at: http://www.esa.int/Our_Activities/Space_Science/Planck Ed is on Twitter at: https://twitter.com/ProfEdCopeland Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Professor Moriarty requested that we re-visit one aspect of physics in the game Portal 2 - humour him! Previous videos at http://www.youtube.com/watch?v=pw6JIB3pM2o and http://www.youtube.com/watch?v=UKAQ1PtcgVA Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Sean Carroll on the arrow of time. See all our videos with Sean: http://bit.ly/115AVqa Sean's book about the arrow of time: http://amzn.to/1hCYrPr Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Discussing Lagrangian (Lagrange) points, orbits and gravity. Speaking is Professor Mike Merrifield. Animations by Pete McPartlan. Pete's website is: http://www.petemcpartlan.co.uk/ Professor Merrifield tweets at https://twitter.com/ProfMike_M Deep Sky Videos is our astronomy channel - http://www.youtube.com/DeepSkyVideos Visit our the Sixty Symbols website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham Sixty Symbols videos by Brady Haran

New research on the physics of mosh pits. Discussed by Professor Phil Moriarty. More from the researchers at: http://bit.ly/moshers See Professor Moriarty in metal action at: http://youtu.be/nBgQPSUTWVM Seen our new channel "computerphile" yet? http://www.youtube.com/computerphile Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html Thanks Dave for some moshing footage: http://www.youtube.com/boyinaband

Professor Merrifield largely "uncut" discussing refraction... Professor Moriarty on the same subject: http://youtu.be/YW8KuMtVpug Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels Mike Merrifield tweets at https://twitter.com/ProfMike_M

Filmed at CERN and the LHC. Behind the scenes at: http://youtu.be/5vZ6cwDXVF0 Sub to sixtysymbols: http://bit.ly/sixtysymbols ... Song by Dave Lens (http://bit.ly/boychannel) featuring ViHart (http://bit.ly/vihartchannel) iTunes: http://bit.ly/16qNETg Another "spoken" version by Dave: http://www.youtube.com/watch?v=eqODDLlMNJ0 Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html LYRICS If you were to / Zoom in / phase-out, move in / focus on this Human / whose cells magnify as you fly through them, and see Atoms, looming / but you keep shooting past protons, bosons, quarks 'til even a part of a particle's too big / Then boom / an end to the intrusion / As you hit the resolution of the universe / the strands of its fabric the tiniest fragment / the planck length, past that, Gravity becomes fallacy, try contrasting that with the galaxies / try to grasp the huge magnitude of the universe it's unimaginable. But let's try anyway. If that insane length was one dollar bill / Then to reach the wavelength of the smallest particles Quarks, that are so fundamental they don't have an inherent size would be the current price you'd gain if you sold Mount Everest made out of gold. That is insane. if you applied the Midas touch to my mind it'd be quite enough to buy a car to drive And the gluons and 3 quarks combined make a large hadron those guys collide; a proton / and to magnify to that size would turn that Midas mountain into a diamond / my mind made of that could buy you an island / and next we ramp up, from quarks and protons

Leave your comments and questions!!! Video footage here courtesy of http://www.eso.org/ Deep Sky Videos: http://www.youtube.com/DeepSkyVideos Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels Professor T-Shirts: http://dftba.com/product/14y/The-Professor-Shirt

Extended version - http://youtu.be/LWw8z75AXwU Capturing the elusive Green Flash during a sunset at Paranal, Chile. Featuring Pete Lawrence - https://twitter.com/Avertedvision With thanks to ESO - http://www.eso.org/public/ Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels Music in this video by Alan Stewart - http://www.youtube.com/user/AlanKey86

What would life be like with just two (or four) dimensions? More on extra dimensions with Ed Copeland... http://youtu.be/75p6_pQ3jBo Flatland: A Romance of Many Dimensions by Edwin Abbott. The Planiverse by A. K. Dewdney Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels

Geometric Optics - discussing the Walkie Talkie skyscraper and the Nottingham Sky Mirror. We're on Facebook at http://www.facebook.com/sixtysymbols The Walkie Talkie, or Walkie Scorchie (?), is a new building in London which has been reflecting light in a rather hazardous way! The Sky Mirror is a sculpture at the Nottingham Playhouse. This video features Professor Mike Merrifield from the University of Nottingham. Visit our website at http://www.sixtysymbols.com/ And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels

We're on Facebook at http://www.facebook.com/sixtysymbols Dropping metal balls into granular glass beads. Featuring Professor Roger Bowley. Destin's video: http://youtu.be/-XNDM4eAn1U Slow Mo Chem: http://bit.ly/chemslomo First comment: http://youtu.be/CmRh9tFYC68 Visit our website at http://www.sixtysymbols.com/ And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels

What do physicists do with a high-speed camera, water balloons and a spare half hour!? Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx This video features Dr Richard Hill and Professor Laurence Eaves. See their spinning droplet research at http://bit.ly/spinningdroplets Here's some slow mo footage we did not use much: http://youtu.be/GNArcBP8CCE http://youtu.be/bUsrephUBb4 Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels Music by: http://www.youtube.com/user/AlanKey86

Just how much data can we transfer using fibre optic cables? Featuring Professor Mike Merrifield from the University of Nottingham... https://twitter.com/ProfMike_M Check our Computerphile: http://www.youtube.com/Computerphile Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Previous physics Nobel Prizes: http://bit.ly/SSNobel The 2013 Nobel Prize in Physics goes to François Englert and Peter Higgs - but who missed out and what will happen with future prizes? Discussed by Professor Ed Copeland and Professor Mike Merrifield from the University of Nottingham. Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

Discussing Comet ISON and just comets in general. Featuring Meghan Gray - https://twitter.com/emeegray - and images from various people, including Pete Lawrence - https://twitter.com/Avertedvision Extra footage from this video: http://youtu.be/APRXAq3Qp8o This is awesome: http://www.solarsystemscope.com/ison/ See our dedicated astronomy channel: http://www.youtube.com/DeepSkyVideos Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://bit.ly/bradychannels

Professor Ed Copeland on strings - and superstrings. Part II now live at: http://youtu.be/m7C9TjdziPE Part III: https://www.youtube.com/watch?v=IJYDcXZMe9c Brady's Movember: http://bit.ly/BradyMo Blog on text: http://periodicvideos.blogspot.co.uk/2013/12/text.html Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

The Mail Online article: http://bit.ly/quantumwoo --- Obviously Dr Lanza did not write the article. Read Dr Lanza's own words on Biocentrism here: http://theamericanscholar.org/a-new-theory-of-the-universe/ This video features Professor Phil Moriarty, a physicist at the University of Nottingham. Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos

In the second "extended interview" with Professor Ed Copeland, he discusses inflation, the Big Bang and when the observable Universe fit inside a grapefruit. Part One (cosmic strings): http://youtu.be/03vIkZR2hNY Part Three (Big Rip): https://youtu.be/IJYDcXZMe9c About text on screen: http://periodicvideos.blogspot.co.uk/2013/12/text.html Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html

The third in our gamma trilogy - this time Professor Mike Merrifield goes into the mathematics! Gamma: http://youtu.be/jlJNsRZ4WxI Gamma Reloaded: http://youtu.be/kGsbBw1I0Rg Animations by Drew Mokris. Visit our website at http://www.sixtysymbols.com/ We're on Facebook at http://www.facebook.com/sixtysymbols And Twitter at http://twitter.com/#!/periodicvideos This project features scientists from The University of Nottingham http://www.nottingham.ac.uk/physics/index.aspx Sixty Symbols videos by Brady Haran A run-down of Brady's channels: http://periodicvideos.blogspot.co.uk/2012/06/here-are-my-channels.html