4.5 pounds of sunlight strike the Earth each day.
27
The average home creates more pollution than does the average car.
33
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
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
Scientists have revived a flowering plant from a fruit stored away in permafrost by Arctic ground squirrel 32,000 years ago.
16
Research indicates that plants grow healthier when they are stroked.
173
Brass doorknobs automatically disinfect themselves in about 8 hours.
18