Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118
Because heat expands the metal, the Eiffel Tower always leans away from the sun.
79
The earth is approx. 6,588,000,000,000,000,000 tons.
175
Airports that are at higher altitudes require a longer airstrip due to lower air density.
39
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The Manchineel Tree is so poisonous, rainwater dripping off it’s leaves will burn your skin.
17
In 1999, Harvard physicist Lene Hau was able to slow down light to 17 meters per second and in 2001, was able to stop light completely.
39