Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
There is a surgical implant being developed that will give you an orgasm at the touch of a button.
20
Sound travels fifteen times faster through steel than through air.
134
0.3% of solar energy from the Sahara is enough to power the whole of Europe.
310
The only letter not appearing on the Periodic Table is the letter "J".
180
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108