When glass breaks, the cracks move faster than 3,000 miles per hour. To photograph the event, a camera must shoot at a millionth of a second!
114
Every year around 1 billion Valentine cards are sent. After Christmas it's a single largest seasonal card-sending occasion.
14
Over its lifetime, the average microwave requires more energy to display a digital clock than to heat food.
10
People who laugh more are better able to tolerate pain - both physical and emotional.
36
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
30
Only humans shed emotional tears.
331
Real diamonds do not show up on x-ray.
36
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