A ball of glass will bounce higher than a ball made of rubber.
73
Diamonds can be shattered with a hammer.
-104
In zero gravity, a candle's flame is round and blue.
16
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
The smell of freshly cut grass is actually a plant distress call.
31
Nearly 50% of the world's scientists are assigned to military projects.
71