Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Stannous fluoride, which is the cavity fighter found in toothpaste is made from recycled tin.
65
Sound travels about 4 times faster in water than in air.
408
The sun is 330,330 times larger than the earth.
75
If the chemical sodium is dropped into water it will immediately and violently explode.
67
Some toothpastes and deodorants contain the same chemicals found in antifreeze.
38
Billions of neutrinos pass unnoticed through your body every second.
6