A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Hot water can freeze faster than cold water.
181
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Scientists are learning from the 1700-year-old Lycurgus Cup, which changes colour thanks to nano particles.
0
Pure water (H2O) does not conduct electricity on its own.
46
Balsa wood is classified as a hard wood!
41