There are more nerve cells in the human brain than there are stars in the Milky Way.
349
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
One human hair can support 3 ounces.
191
More than 10% of the world's salt is used to de-ice American roads.
54
Since 1982, a radio frequency emanating from Russia has been broadcasting a buzzer-like sound and, periodically, an unknown voice reads orders, names, and numbers. No one knows where exactly it is coming from or what it means.
13
It's impossible to kill yourself by holding your breath.
22
Japanese engineers were asked to redesign the front end of the Bullet Train because it carried enough speed to create a sonic boom whenever it exited a tunnel. Residents could feel the blast from miles away.
11
The small pocket in the larger pocket of your jeans was designed for pocket watches.
11