The full moon causes a tidal wave to roll up the Amazon river once in day and once in night for a period of only three weeks in a year. This results in continuous 4m high wave that can be surfed for up to 13km.
14
The Statue of Liberty is made out of copper. When originally built, it looked like a shiny new penny!
10
More than 50% of Americans fall asleep on their sides.
86
You burn more calories sleeping than you do watching television.
348
The Band-Aid was originally made for the inventor's wife, who often cut and burned herself while cooking.
6
The weight of air in a milk glass is about the same as the weight of one aspirin tablet.
63
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
244
You can start a fire with ice.
367