Not swinging your arms when you walk increases the effort of walking by 12%, the equivalent of walking 20% faster or carrying a 10 kg backpack.
12
It is impossible to hum if your nose is plugged.
366
It's impossible to kill yourself by holding your breath.
22
In the White House, there are 13,092 knives, forks and spoons!
51
In an average hour, there are over 61,000 Americans airborne over the United States.
24
The average cough comes out of your mouth at 60 miles per hour.
126
Tsunamis ( tidal waves ) travel as fast as jet planes.
97
Those things you see in your eyes when you stare into space are called Mouches Voltanes, which are also broadly referenced to as Floaters.
9