Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Aluminum used to be more valuable than gold!
84
At 15 years old, Jack Andraka invented a method of diagnosing pancreatic cancer, thus helping to save the lives of millions of people around the world. It is 168 times faster, 26,000 times cheaper, 400 times more sensitive, and has a 99% success rate.
15