Power Exercise Wheel
Why we can’t create power plants of people on machines so they can burn off pounds and get paid for it?
I know it seems like it won’t produce much but there always seem to be new ways of making things efficient. I just wonder if even a giant hamster wheel with a basic walker for 2 hours and 8 bucks would be beneficial. Three pay offs: more energy, more exercise and a few bucks for incentive TO exercise. Why not?
A fit human can typically generate just under 400W of power output for a few minutes:
http://en.wikipedia.org/wiki/Human_power
To provide Earth’s power demands for 3 minutes would require 37.5 billion people.
If you wanted to provide constant power, this guy has done tests and found he can keep up about 60W for 5hrs:
http://www.los-gatos.ca.us/davidbu/pedgen/stats.html
If you had people doing 8hr shifts/day, you would need 750 billion people with 250bn cycling at a time to provide the current power demands of under 7bn people. The power output is so tiny that it’s not really worth it.
Working for 8hrs ~60W output would generate 4.8kWh or about $0.50. I don’t think many people would work for 6 cents an hour!
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