Women blink nearly twice as much as men.
152
In an average hour, there are over 61,000 Americans airborne over the United States.
24
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
In 1976, an underachieving Princeton junior undergraduate wrote a term paper detailing how to make a nuclear bomb. He got an "A", but never got his paper back because it was seized by the FBI.
16
The key to happiness is spending your money on experiences rather than possessions, according to studies.
21
The world’s smallest book, “Teeny Ted from Turnip Town”, is 100×70 micrometers in size and requires a scanning electron microscope to read, as light beams are too large.
6
If left alone, 70% of birthmarks gradually fade away.
193