One 75-watt bulb gives more light than three 25-watt bulbs.
57
Research indicates that plants grow healthier when they are stroked.
173
Each day, up to 150 species of life become extinct.
-23
Sound travels about 4 times faster in water than in air.
408
Iron weighs more after it rusts.
68
A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists concluded that the chicken came first, not the egg, because the protein which makes the egg shells is only produced by hens.
11
Termites are being researched as a possible renewable energy source as they can produce up to 2 litres of hydrogen from ingesting a single sheet of paper, making them one of the planet’s most efficient bioreactors.
24