A cubic yard of air weighs about 2 pounds at sea level.
31
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
Oak trees produce 2,200 acorns in a season, but each acorn only has a 1 in 10,000 chance of becoming an oak tree.
304
Out of all the senses, smell is most closely linked to memory.
146
Indoor pollution is 10 times more toxic than outdoor pollution.
62
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
Rafflesia Arnoldii is the largest flower in the world and can grow as big as an umbrella.
42