One third of the electricity produced on earth is used to power electric light bulbs!
75
The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Marie Curie, the Nobel prize winning scientist who discovered radium, died of radiation poisoning.
57
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The brain case [of Neanderthals] on the average was more than 13 percent larger than that of the average of modern man
61
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
One barrel of petroleum holds 42 gallons.
20
Nylon is made from coal and petroleum.
42