Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A ball of glass will bounce higher than a ball made of rubber.
73
Cold water weighs more than hot water.
93
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
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11