When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
One 75-watt bulb gives more light than three 25-watt bulbs.
57
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
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
The inventor of the Super Soaker squirt gun was a NASA Scientist who also helped develop the Stealth Bomber and the Galileo mission to Jupiter.
7