how do I set up this time scaling relationship between the universe and

  • Thread starter Thread starter Thermal C
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Thermal C

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human civilization? 1 year=10 billion year history of known universe

I need to figure out how long the 5000 year history of human civilization is in this scale model of time.

I'm horrible at math, please help me....
 
There are a number of math sites, with ratios. But I've found National Geographic usually has those scales.
 
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