Sound travels about 4 times faster in water than in air.
408
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The highest speed ever achieved on a bicycle was 167.04 mph by Fred Rompelberg in 1995.
11
Jumping fleas can accelerate 50 times faster than the space shuttle.
218
A domestic cat can sprint at about 31 miles per hour.
274
If a man could run as fast for his size as an ant can, he could run as fast as a racehorse.
108
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.
35
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423