The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Cold water weighs more than hot water.
93
Iron weighs more after it rusts.
16
Nylon is made from coal and petroleum.
42
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Scientists are working on a portable spray-on-skin that can heal severe wounds in just a few minutes.The spray mainly contains important proteins that can reprogram the injured cells to become stem cells, and back to young uniformed skin cells. So far they were able to accelerate healing process from 12 weeks to 21 days with a similar approach.
16
The bark of an older redwood tree is fireproof.
65
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310