Humans are capable of running 40 mph according to a study by bio-mechanical expert Dr. Matthew Bundle. Today's fastest man, Usain Bolt, has a top speed of 28 mph.
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A domestic cat can sprint at about 31 miles per hour.
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Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
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When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
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All GPS units sold in the civilian market have to be programmed to deactivate themselves if they detect they are travelling faster than 1200 MPH or are above 60,000 feet in altitude to prevent them being used in intercontinental ballistic missiles.
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Sound travels about 4 times faster in water than in air.
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MIT has developed a camera that captures the speed of light at a trillion frames per second.
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Jumping fleas can accelerate 50 times faster than the space shuttle.
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