I toyed with the idea of using Earth as part of a gigantic dynamo to generate electricity previously. A few arguments were deliberately left out, to encourage you to think about it, and so that I’ll have something else to talk about here. *smile*
Jonathan didn’t think it will work. His argument was that the support structures in space won’t be able to hold (steady). And xero suggested using humans as generators. Let’s look at both of their comments.
Side effects of the geodynamo
Having a large part of the structure out in space should mitigate the gravitational pull of Earth. With some thrusters thrown in, the use of light-weight and strong material for the structure, the whole thing should work. I think.
I’m not so much concerned if it’ll work, but what happens if it does work. I’m concerned about the electromagnetic influence on marine life, on living things around the equatorial region. And most of all, I’m concerned if it will affect Earth’s rotational spin, that it will slow it even more.
As programmers, we seldom have to think about the consequences of our creations. We’re more concerned with making it work. The best examples I have right now are the social media tools, such as Twitter. The microblogging platform flourished, with consequences ranging from people complaining it’s a time-waster and productivity-drainer, to people using it as part of their business strategies, to connecting with people they would never have met.
But there’s a difference in enabling something waiting to happen, and something that’s not.
Mini dynamos. Thousands of them.
Instead of one gigantic monster of a generator, we could have thousands of mini dynamos. Human powered. The idea is to connect gym bikes to power generators. While we’re exercising, all that energy is lost, so we might as well generate some electricity.
I disagree with xero on paying people minimum wages to go exercise. Something gets optimised whenever an incentive is introduced, particularly if it’s monetary… and if you don’t agree with that, go talk to a manager. The ideal case is that people exercise because they want to maintain a healthy lifestyle, and they want to help generate some alternative sources of electricity. Intrinsic motivation versus extrinsic motivation.
On the thought of gym bikes, what about cars? We have many of them on the planet, and their wheels are spinning. And not really doing anything else.
Can we attach some power generating contraption to car wheels? If we’re burning fossil fuels to turn them, we might as well try to salvage something out of it. It wouldn’t totally negate the loss of energy (that’s almost like a perpetual motion machine), but we would waste less of it. It’s like those lights on bicycles that light up when the biker is pedalling.
Let me know what you think. And I still want my free electricity.
[If you’re Chinese, Happy Lunar New Year to you!]