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
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The average temperature at 40,000 feet above sea level is -60 F.
56
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Blue eyes are a genetic mutation. Before the mutation occured, all humans had brown eyes.
89
Scientists aren't sure what color dinosaurs were.
312