The earth is approx. 6,588,000,000,000,000,000 tons.
175
Sound travels fifteen times faster through steel than through air.
134
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
Scientists have developed a microparticle filled with oxygen that can be injected into the blood stream, enabling us to live without breathing.
21