Sound travels fifteen times faster through steel than through air.
134
The smell of freshly cut grass is actually a plant distress call.
31
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Hot water can freeze faster than cold water.
181
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 gas that gives rotten eggs their distinctive foul smell may slow ageing and block damaging chemical reactions inside cells, according to scientists in China.
5
Sound travels about 4 times faster in water than in air.
408
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17