A cubic yard of air weighs about 2 pounds at sea level.
31
Pumice is the only rock that floats on water.
14
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
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
The bark of an older redwood tree is fireproof.
65
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
Cold water weighs more than hot water.
93