Most dust particles in your house come from dead skin.
48
The earth is approx. 6,588,000,000,000,000,000 tons.
175
The smell of freshly cut grass is actually a plant distress call.
31
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Iron weighs more after it rusts.
68
Sound travels about 4 times faster in water than in air.
408
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20