44% of kids watch television before they go to sleep.
106
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
Bats sleep 18-20 hours per day.
5
If you put two straws in your mouth, one inside a drink and one outside it, you won't be able to drink through either straw.
202
Cracking your knuckles does not actually hurt your bones or cause arthritis. The sound you hear is just gas bubbles bursting.
18
Men are more attracted to women whose bone structure is similar to their own mothers. It's called "sexual imprinting".
18
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8