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Jeff Hayes on how a Tesla Turbine works - YouTube
https://www.youtube.com/watch?v=F8kE73IaU-0
http://www.americanantigravity.com - Former Rockwell engineer Jeff Hayes explains how a Tesla Turbine works, answers questions about the device, and provides...
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How the blockchain will radically transform the economy | Bettina Warburg - YouTube
https://www.youtube.com/watch?v=RplnSVTzvnU
Say hello to the decentralized economy -- the blockchain is about to change everything. In this lucid explainer of the complex (and confusing) technology, Be...