Research indicates that plants grow healthier when they are stroked.
173
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
If you are locked in a completely sealed room, you will die of carbon dioxide poisoning first before you will die of oxygen deprivation.
117
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Nylon is made from coal and petroleum.
42
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61