The bark of an older redwood tree is fireproof.
65
Balsa wood is classified as a hard wood!
41
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
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