Hellow guys, Welcome to my website, and you are watching 60 second adventures in Microgravity with David Mitchell - What is microgravity? (1/4). and this vIdeo is uploaded by OpenLearn from The Open University at 2016-04-01T01:50:14-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.