The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
A single speck of dust is half way in size between a subatomic particle and the Earth.
15
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Nylon is made from coal and petroleum.
42
One 75-watt bulb gives more light than three 25-watt bulbs.
57
One third of the electricity produced on earth is used to power electric light bulbs!
75
Sound travels about 4 times faster in water than in air.
408
In Arizona, a solar wind energy tower has been proposed that would generate as much energy as the Hoover Dam.
5