Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Cold water weighs more than hot water.
93
Diamonds can be shattered with a hammer.
-104
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
In zero gravity, a candle's flame is round and blue.
16
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18