A single speck of dust is half way in size between a subatomic particle and the Earth.
15
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
The bark of an older redwood tree is fireproof.
65
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65