A 'jiffy' is an actual unit of time for 1/100th of a second!
66
Sound travels about 4 times faster in water than in air.
408
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Hot water can freeze faster than cold water.
181
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5