The force of a suction cup is calculated using F=AP.
15
Your brain is 80% water.
525
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
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
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3