Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Balsa wood is classified as a hard wood!
41
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
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
Iron weighs more after it rusts.
68
One barrel of petroleum holds 42 gallons.
20
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
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