Hot water can freeze faster than cold water.
182
One 75-watt bulb gives more light than three 25-watt bulbs.
57
Aluminum used to be more valuable than gold!
84
MIT has developed a camera that captures the speed of light at a trillion frames per second.
20
Sound at the right vibration can bore holes through a solid object.
134
One ragweed plant can release as many as one billion grains of pollen!
51
A coal power station puts 100 times more radiation into the air than a nuclear power plant producing the same amount of energy.
7