22 January 2007

You are very small

In the grand scheme of things (say compared to W Cephi) you are small. If you don't believe me, then watch this video. If a red blood cell was scaled up to its size on W Cephi, that one cell could hold enough blood to fill three human bodies.

W Cephi = 288,194 X Earth
Red Blood Cell = 1/100,000,000 meters
Size of red blood cell on W Cephi = about 1/4 meter
Volume of RBC on W Cephi = 1/64 meters cubed = about 15 liters
Blood in human body = about 5 litres

Of course size is relative, and you are relatively big compared to the stuff around you. That is probably easy to believe, but for completeness, here is a link of really small things.

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