Iron weighs more after it rusts.
16
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
The bark of an older redwood tree is fireproof.
65
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
If the chemical sodium is dropped into water it will immediately and violently explode.
67
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Sound at the right vibration can bore holes through a solid object.
134