Each year, more than 50,000 people are injured by jewelry in the U.S.
29
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
Leather skin does not have any smell. The leather smell that you sense is actually derived from the materials used in the tanning process.
23
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
Coins usually survive in circulation for about 30 years.
66
In Tokyo, a bicycle is faster than a car for most trips of less than 50 minutes!
58
The Main Library at Indiana University sinks over an inch every year because when it was built, engineers failed to take into account the weight of all the books that would occupy the building.
240
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240