Liquid TIDE laundry detergent glows under a blacklight.
96
Nearly 50% of the world's scientists are assigned to military projects.
71
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
In zero gravity, a candle's flame is round and blue.
16
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
Sound travels about 4 times faster in water than in air.
408