The smell of freshly cut grass is actually a plant distress call.
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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
Aluminum used to be more valuable than gold!
84
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
Liquid TIDE laundry detergent glows under a blacklight.
96
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
For every gallon of sea water, you get more than a quarter pound of salt.
45