The bark of an older redwood tree is fireproof.
65
Diamonds can be shattered with a hammer.
-104
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
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
Billions of neutrinos pass unnoticed through your body every second.
6
The smell of freshly cut grass is actually a plant distress call.
31
A ball of glass will bounce higher than a ball made of rubber.
73
Most dust particles in your house come from dead skin.
48