Indoor pollution is 10 times more toxic than outdoor pollution.
62
Sound at the right vibration can bore holes through a solid object.
134
The bark of an older redwood tree is fireproof.
65
It takes a photon 170,000 years to travel from the core of the Sun to the surface, but only 8 minutes to travel the rest of the way to Earth.
6
Most dust particles in your house come from dead skin.
48
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42
The banana plant cannot reproduce itself. It can be propagated only by the hand of man.
155