Your brain is 80% water.
525
A ball of glass will bounce higher than a ball made of rubber.
73
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Cold water weighs more than hot water.
93
Diamonds can be shattered with a hammer.
-104
Billions of neutrinos pass unnoticed through your body every second.
6
The bark of an older redwood tree is fireproof.
65