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by Gatsky
1942 days ago
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The temperature of the material is the same on the top and bottom (less than 0.1K difference they say). The mechanism is rather that the air molecules are entrapped in the nanotube coated under surface and heat up more, so depart with a higher velocity than the upper surface. This creates lift. Quite a cool effect, reminiscent of an army of Laplace's demons kicking air molecules off the bottom of the surface to make it fly. |
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