A cubic yard of air weighs about 2 pounds at sea level.
31
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The sun is 330,330 times larger than the earth.
75
Billions of neutrinos pass unnoticed through your body every second.
6
Each day is longer than the previous on by 0.00000002 seconds which is 13 seconds each century!
116
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
Hot water can freeze faster than cold water.
181
Brass doorknobs automatically disinfect themselves in about 8 hours.
18