Friday, July 18, 2008

All The Air and Water in the World


Global water and air volume. Conceptual computer artwork of the total volume of water on Earth (left) and of air in the Earth's atmosphere (right) shown as spheres (blue and pink). The spheres show how finite water and air supplies are. The water sphere measures 1390 kilometres across and has a volume of 1.4 billion cubic kilometres. This includes all the water in the oceans, seas, ice caps, lakes and rivers as well as ground water, and that in the atmosphere. The air sphere measures 1999 kilometres across and weighs 5140 trillion tonnes. As the atmosphere extends from Earth it becomes less dense. Half of the air lies within the first 5 kilometres of the atmosphere.
Credit:
ADAM NIEMAN / SCIENCE PHOTO LIBRARY

1 Comments:

Anonymous volume-addict said...

Pssst.

Watchmen preview trailer is now online.

http://www.apple.com/trailers/wb/watchmen/

12:36 AM  

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