One barrel of petroleum holds 42 gallons.
20
The average home creates more pollution than does the average car.
33
Brass doorknobs automatically disinfect themselves in about 8 hours.
18
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
One gallon of used motor oil can ruin approximately one million gallons of fresh water!
71
The bark of an older redwood tree is fireproof.
65
For every gallon of sea water, you get more than a quarter pound of salt.
45