Jackissimus Posted October 19, 2013 Share Posted October 19, 2013 (edited) Today my father told me about a physical fact that I, quite surprisingly, never heard about. He told me that when he was a small kid he would remove a wheel from his bicycle, and while holding the hub with his hand he would spin the wheel to test for friction. And he found out that he could easily let the hub just rest on his hand and the wheel would remain upright. The idea seemed ludicrous to me and I refused to believe him. So I tried to search youtube for this effect and here it is: Quite ashamed that I was so uneducated I searched further and learned about a professor called Eric Laithwaite, who apparently did a lot of work on this. He also claimed that spinning objects could in fact be lifted more easily and this could be used in space propulsion. He was quite famous for his work on linear induction motors at that time (he is sometimes called "the father of maglev trains"), so at first his discovery created quite a sensation, but then his claims about defying newton's laws discredited him into obscurity. This is a video of him showing how spinning makes objects lighter (around the 2:38 mark): What really happens is that the prof is hurrying the precession and thus the flywheel is forced upward.P.S. Fun fact - at one time, NASA became interested in his work, but mostly in his linear induction motor. They funded him to develop what we now call the mass driver. P.P.S Fun fact number two - NASA also assessed his work on gyroscopic antigravity as part of their Breakthrough Propulsion Physics Project and you can see the comments here (page 8) and here.Disclaimer: I just wanted to share, for me it's fun to read about things that seem impossible. No law breaking is shown here. Edited October 19, 2013 by Jackissimus Quote Link to comment Share on other sites More sharing options...
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