A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
Every day, plants convert sunlight into energy equivalent to six times the entire power consumption of human civilization.
9
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39