Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Iron weighs more after it rusts.
68
The average home creates more pollution than does the average car.
33
Only 12,000 years ago there was a species closely related to modern humans called Homo floresiensis that had been living on an Indonesian Island. They used fire and rather advanced tools, yet were only about 3 feet tall and weighed around 25kg.
15
In zero gravity, a candle's flame is round and blue.
16
Scientists are attempting to create a synthetic brain by reverse-engineering the mammalian brain down to the molecular level. A cellular human brain is predicted possible by 2023. It hopes to shed light on consciousness.
10
The smell of freshly cut grass is actually a plant distress call.
31