The first household refrigerators cost about $16,000, in today's money!
47
The roar that we hear when we place a seashell next to our ear is not the ocean, but rather the sound of blood surging through the veins in the ear.
479
There are 86,400 seconds in a day.
110
According to the New York Times, a study conducted during the 1980's found that men who kiss their wives before leaving for work live longer, get into fewer car accidents, and have a higher income than married men who don't.
14
If you get water flowing fast enough, it can cut metal.
354
Real diamonds do not show up on x-ray.
36
There are more nerve cells in the human brain than there are stars in the Milky Way.
349
