The average temperature at 40,000 feet above sea level is -60 F.
56
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Most dust particles in your house are made from dead skin!
67
Approximately 70 percent of the earth is covered by water. Only 1 percent of this water is drinkable.
65
A cesium atom in an atomic clock beats over nine billion times a second.
43
Billions of neutrinos pass unnoticed through your body every second.
6
Sound travels fifteen times faster through steel than through air.
134
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