The bark of an older redwood tree is fireproof.
65
The average home creates more pollution than does the average car.
33
Most dust particles in your house are made from dead skin!
67
In zero gravity, a candle's flame is round and blue.
16
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Research indicates that plants grow healthier when they are stroked.
173
One ragweed plant can release as many as one billion grains of pollen!
51