Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Most dust particles in your house are made from dead skin!
67
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The storage capacity of human brain exceeds 4 Terrabytes.
140
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
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
