There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22
Ice isn't slippery. What makes people and things slip on ice is water. A thin layer of ice melts when pressure is applied to it and it is this wet layer on top of the ice that is slippery.
153
Playing Tetris after a traumatic event can prevent the development of traumatic memories and reduce the chance of having flashbacks.
29
It's impossible to sink in the Dead Sea without equipment!
72
It has been calculated that every 2 minutes, we take more pictures than all of humanity in the 19th century.
13
The best time for a person to buy shoes is in the afternoon. This is because the foot tends to swell a bit around this time.
49
You can start a fire with ice.
367
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170