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
During his or her lifetime, the average human will grow 590 miles of hair.
69
On average, a disposable diaper can hold up to 7 pounds of liquid.
22
The yin-yang pattern's earliest use is in Rome - not China!
125
Caffeine boosts memory.
405
It is impossible to hum if your nose is plugged.
366
It takes the same amount of time to age a cigar as wine.
25