There are 86,400 seconds in a day.
110
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 chlorine smell in swimming pools is accentuated by the chemical's reaction with impurities (like poop.)
7
Wearing red increases attraction.
30
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
Babies start dreaming even before they're born.
134
If you get water flowing fast enough, it can cut metal.
354