Pumice is the only rock that floats on water.
14
Tap water in Canada is held to a higher health standard than bottled water.
19
Lack of water is the #1 trigger of daytime fatigue.
148
Fingers prune underwater not because of them absorbing the water or washing away the oil, but because of an evolutionary trait caused by the brain to enhance the grip of your fingers underwater.
24
If you get water flowing fast enough, it can cut metal.
354
A portion of the water you drink has already been drunk by someone else, maybe several times over.
170