One 75-watt bulb gives more light than three 25-watt bulbs.
57
One ragweed plant can release as many as one billion grains of pollen!
51
Nylon is made from coal and petroleum.
42
Sound travels fifteen times faster through steel than through air.
134
The most expensive material on the planet is antimatter - worth $62.5 trillion per gram.
18
The hair of an adult man or woman can stretch 25 percent of its length without breaking.
116
Pumice is the only rock that floats on water.
14