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
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
The smell of freshly cut grass is actually a plant distress call.
31
Hot water can freeze faster than cold water.
181