Video: As fun as building your own 1.8m model rocket might be, launching it is nowhere near as impressive as watching one of NASA's towering rockets blast into orbit -- unless you point a high-speed camera at it. At 28,000 frames per second, a wonderful pyrotechnics show is revealed as it leaves the launch pad.
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Even the strongest artificial glues are completely useless when you try to apply them underwater, but somehow shellfish are able to hold fast to rocks to deter predators from trying to carry them away. Clearly, nature has already figured out how to make glues that work underwater, and now researchers may have discovered the secret.