One cubic foot of gold weighs more than 1,200 pounds!
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Liquid TIDE laundry detergent glows under a blacklight.
96
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
Sound travels fifteen times faster through steel than through air.
134
The average home creates more pollution than does the average car.
33
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
Most dust particles in your house come from dead skin.
48