Tuesday, August 12, 2008

another money-making idea

inspired by: http://www.diet-blog.com/archives/2008/07/23/human-powered_floating_gym.php

create (rather, modify existing designs of) gym machines that generate electricity, sell to metropolis gyms. treadmills, stationary bikes, elliptical trainers and stair-masters are easy; what's slightly harder is the weight-machines. how would you have the user generate more electricity, as the resistance is increased? in other words, how do you make sure the increase in resistance is achieved by generating more electricity, rather that by adding more weights?

starting point: http://en.wikipedia.org/wiki/Dynamo

makes all the sense in the world, right?

1 comment:

Greg said...

I'd love to have a bike at my house, when I ride it, I produce an electric charge that can do something like charge my cell phone.

- how much would it cost?
- how much electricity would it generate?

A similar idea, is a previous post I had about water:

This involves hauling buckets of water up and down a hill so as to produce electricity out of it.