A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Aluminum used to be more valuable than gold!
84
Nearly 50% of the world's scientists are assigned to military projects.
71
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Forensic scientists can determine a person's sex, age, and race by examining a single strand of hair.
101
One ragweed plant can release as many as one billion grains of pollen!
51