The chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
Real diamonds do not show up on x-ray.
36
American car horns beep in the tone of F.
66
You burn more calories sleeping than you do watching television.
348
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
In Monopoly, the character locked behind the bars is called Jake the Jailbird. Officer Edgar Mallory sent him to jail.
65
It's impossible to sink in the Dead Sea without equipment!
72