Columbia University has developed an artificial tree that passively soaks up carbon dioxide from the air using "leaves" that are 1,000 times more efficient than true leaves that use photosynthesis.
15
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
There are more than 270 people cryogenically frozen in the hope that one day the technology will exist that can revive them and extend their lives.
13
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Sound at the right vibration can bore holes through a solid object.
134
One 75-watt bulb gives more light than three 25-watt bulbs.
57