Tae Kwon Do is only around 60 years old.
64
The best diamonds are colored blue-white.
80
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
Real diamonds do not show up on x-ray.
36
The average American uses eight times as much fuel energy as an average person anywhere else in the world.
28
You can immediately cool down a car that has been sitting under the sun by rolling down the window on one side and opening-closing the door on the other side 5-6 times.
23
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.
476
People who drink coffee are less likely to commit suicide than people who don't.
268