American car horns beep in the tone of F.
66
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
On average, a disposable diaper can hold up to 7 pounds of liquid.
22
'X' became symbolic for a kiss because in the middle ages when alot of people were illiterate and they used to sign documents with an X and then kiss it for sincerity.
255
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
A pipe 2 feet in diameter will allow four times more fluid to pass through it than a pipe 1 foot in diameter.
20