Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
The first household refrigerators cost about $16,000, in today's money!
47
Only humans shed emotional tears.
331
The small pocket in the larger pocket of your jeans was designed for pocket watches.
11
Americans are responsible for generating roughly 20% percent of the garbage in the world.
29
The average American uses eight times as much fuel energy as an average person anywhere else in the world.
28
By peeing in the shower, you can save 1,157 gallons of water a year.
31