If the chemical sodium is dropped into water it will immediately and violently explode.
67
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
The left ear is more responsive to words of love and emotion whispered into it than the right.
40
No matter how cold it gets, gasoline will not freeze.
107
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21
Nearly 50% of the world's scientists are assigned to military projects.
71
One 75-watt bulb gives more light than three 25-watt bulbs.
57