Iron weighs more after it rusts.
68
A 'jiffy' is an actual unit of time for 1/100th of a second!
66
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
Nearly 50% of the world's scientists are assigned to military projects.
71
Nylon is made from coal and petroleum.
42
At room temperature, the average air molecule travels at the speed of a rifle bullet.
55