Sound travels about 4 times faster in water than in air.
408
The gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
Billions of neutrinos pass unnoticed through your body every second.
6
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
If the chemical sodium is dropped into water it will immediately and violently explode.
67