Water Pressure

July 18, 2010 at 9:08 am | Posted in facts and figures | Leave a comment

Let us imagine that you were exactly 1 Km under the sea.
Twisting the rules of physics a bit, let’s assume that the size of your head from a bird’s eye view is around 20 cm x 20 cm = 400 sq cm.
Therefore, you would have (400 sq cm x 1 Km)s worth of water weighing down on your head.

400 sq cm x 100,000 cm = 40,000,000 cubic cm
1000 cubic cm of water = 1000 ml of water = 1 KG
40,000,000 / 1000 = 40,000 KG of water pushing down on you. (or 40 tons if you prefer)

And this is why it is totally impressive that living animals exist such deep down.  Most people would be instantly killed if a one ton concrete block hit your head.

(inspired by http://news.nationalgeographic.com/news/2010/07/photogalleries/100716-deep-sea-species-sharks-australia-science-pictures/#deepest-ocean-species-camera-australia-shark_23473_600x450.jpg Those deep sea creatures look amazing, and out-of-this-world)

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