Pumice is the only rock that floats on water.
14
In the 1950s, the US government placed beer next to an atomic bomb blast to determine if it was still drinkable. The result: in the event of a nuclear war, beer is safe to drink!
16
Sound travels about 4 times faster in water than in air.
408
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
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
Iron weighs more after it rusts.
16