In zero gravity, a candle's flame is round and blue.
16
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
In the 60s, a scientist gave LSD to dolphins in an attempt to teach them English.
17
The average home creates more pollution than does the average car.
33
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24
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