Peanut butter and jelly sandwiches were originally considered a delicacy, only enjoyed by those of the upper class.
9
The lifespan of mammals is about 1 and a half billion heartbeats.
127
On average, every dollar bill you touch has over 3,000 different types of bacteria.
8
At the time of your birth, you were, for a few seconds, the youngest person on the planet.
30
Any domino can knock over another object up to 1.5x its size. The 32nd object would be big enough to knock over the Empire State Building.
18
There is a growing sport in Berlin and London called Chess Boxing. Players alternate between a round of chess and a round of boxing until one is declared winner either by checkmate, KO, or technical stoppage.
8
Sony researchers have developed a refrigerator that only opens when you smile.
9