Balsa wood is classified as a hard wood!
41
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Pumice is the only rock that floats on water.
14
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
The force of a suction cup is calculated using F=AP.
15
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5