Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Billions of neutrinos pass unnoticed through your body every second.
6
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
During photosynthesis, plants emit light humans can’t see, but NASA can see that light from space - and they've even made maps of it!
21
German chemists made a replica of a trophy the size of one molecule.
68
No matter how cold it gets, gasoline will not freeze.
107
A cubic yard of air weighs about 2 pounds at sea level.
31