Sound travels about 4 times faster in water than in air.
408
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.
2
A domestic cat can sprint at about 31 miles per hour.
274
Domestic pigs average a top speed of about 11 miles per hour.
182
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
When glass breaks, the cracks move at speeds of up to 3,000 miles per hour.
423
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.
34
Lars Andersen has rediscovered an ancient form of archery that allows him to shoot 10 arrows in 4.9 seconds, while it takes others 13-35 seconds. He is even faster than the fictional archer Legolas in the Lord of the Rings series.
17