Nearly 50% of the world's scientists are assigned to military projects.
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Optical illusions occur when what the eyes see conflicts with what the brain expects.
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Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
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A cubic yard of air weighs about 2 pounds at sea level.
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Sound at the right vibration can bore holes through a solid object.
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Aluminum used to be more valuable than gold!
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The force of a suction cup is calculated using F=AP.
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Airports that are at higher altitudes require a longer airstrip due to lower air density.
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