In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
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
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Your brain is 80% water.
525
A 'jiffy' is an actual unit of time for 1/100th of a second!
66