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Posted 12 years ago by boyt in category: science   Comments (1)


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Skip to 09:15 where today's Eclipse is mentioned.
Posted 2 years ago by Santoro in category: science   Comments (0)


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In this video, Tim demonstrates a variety of Lenz's Law demonstrations. At its simplest, you can just drop a magnet down a metal tube, maybe made of copper or aluminium, and be surprised at how slowly it descends, despite the fact that copper and aluminium are not attracted to magnets.
Posted 1 year ago by grayT in category: science   Comments (0)



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Vantablack is a material developed by Surrey NanoSystems in the United Kingdom and is one of the darkest substances known, absorbing up to 99.96% of visible light. The name is a compound of the acronym VANTA and the color black.
Posted 5 months ago by Ferrybot in category: science   Comments (0)


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(Slow Motion Shockwave formation) Smarter Every Day 207
Posted 1 year ago by DavidMP4 in category: science   Comments (0)