The earth is approx. 6,588,000,000,000,000,000 tons.
175
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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
One third of the electricity produced on earth is used to power electric light bulbs!
75
The average temperature at 40,000 feet above sea level is -60 F.
56
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6