Sound travels fifteen times faster through steel than through air.
134
Diamonds can be shattered with a hammer.
-104
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
German chemists made a replica of a trophy the size of one molecule.
68
Pumice is the only rock that floats on water.
14
Aluminum used to be more valuable than gold!
84
The only letter not appearing on the Periodic Table is the letter "J".
180
One cubic foot of gold weighs more than 1,200 pounds!
78