Iron weighs more after it rusts.
16
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Optical illusions occur when what the eyes see conflicts with what the brain expects.
75
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Scientists aren't sure what color dinosaurs were.
312
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Pumice is the only rock that floats on water.
14
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