High-speed video of a kernel of popcorn popping at 5400 frames per second. (via Digg)
Nov
03
Nov
03
High-speed video of a kernel of popcorn popping at 5400 frames per second. (via Digg)
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Richard says:
November 5, 2007 at 2:17 pm (UTC 0)
Huh? How is it that the kernel assumes an upward trajectory BEFORE popping? One would naturally assume that it is the kernel’s own rapid expansion that pushes it upwards. But if it hasn’t popped yet, whence comes the force that sends it into the air?