The smell of freshly cut grass is actually a plant distress call.
31
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
A cesium atom in an atomic clock beats over nine billion times a second.
43
If you blowtorch Pepto-Bismol, you would get a hunk of metal.
114
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Pumice is the only rock that floats on water.
14
Sound travels about 4 times faster in water than in air.
408
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5