Cold water weighs more than hot water.
93
Pure water (H2O) does not conduct electricity on its own.
46
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
One ragweed plant can release as many as one billion grains of pollen!
51
Most dust particles in your house come from dead skin.
48
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
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 weight of a carat (200 milligrams), standard unit of measurement for gemstones, is based on the weight of the carob seed.
51