The Earth's atmosphere weighs about 5.5 quadrillion tons.
108
Neanderthal man had a brain capacity 100cc larger than modern man's.
50
One 75-watt bulb gives more light than three 25-watt bulbs.
57
The average home creates more pollution than does the average car.
33
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7
Scientists aren't sure what color dinosaurs were.
312
According to scientists, the color of the cup that we're drinking from can alter our perception of the actual taste of the drink.
12