Hot water can freeze faster than cold water.
181
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
A cesium atom in an atomic clock beats over nine billion times a second.
43
Stephen Hawking once tried to find potential time travellers by throwing a party and only sending out invitations after the party.
17
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
Sound travels about 4 times faster in water than in air.
408
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Nuclear power prevented an average of over 1.8 million deaths between 1971-2009 as a result of lower air pollution from reduced coal usage according to NASA.
5