The Royal Institution

What Is Weightlessness? (2016x17)

Data di messa in onda: Mag 11, 2016

Do you have weight in space? Is weightlessness an absence of gravity, or actually an absence of forces°’s a more subtle understanding of weight as something we feel and discuss every day. How these two ideas fit together can cause some confusion, particularly when the idea of weightlessness and astronauts in orbit on the ISS is introduced. When we tackled weightlessness for the 2016 CHRISTMAS LECTURES and our online series, A Place Called Space in December last year, we spent a long time thinking about weight. This video shares some of those thoughts. For example, when you’re in freefall, are you weightless? Is weightlessness a consequence of freefall, or is freefall, in fact, a consequence of weightlessness? Andy explains. You can watch our series all about space: https://youtu.be/IcjYdEW_HLQ?list=PLbnrZHfNEDZya_Zn8tCOgnzVG1-poingi Subscribe for regular science videos: http://bit.ly/RiSubscRibe The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter