Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
One ragweed plant can release as many as one billion grains of pollen!
51
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
Hot water can freeze faster than cold water.
181
Cellophane is not made of plastic. It is made from a plant fiber, cellulose, which has been shredded and aged.
44
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