>>922889 That's not 'free energy' OP, that's a transducer; you're converting mechanical energy (moving the magnet) into electrical energy, by inducing a current in the coil.
Now, if you want to play around with something, try this: Put up a long-wire antenna outside your house, as high up as you can get it. For bonus points, tune the length for 1000kHz (middle of the AM broadcast band). Sink a 6-foot ground rod into the ground for a good, solid earth ground point. Connect that to the lowest voltage drop Schottky diode you can find, using the ground rod for your circuit ground. Now you're stealing power from all the AM broadcast transmitters in your area. Connect that to an energy-harvesting-and-storing circuit that charges a supercapacitor or secondary battery (Linear Technology has ICs that are designed to do this), and over time you have 'semi-free' energy (again, you're 'stealing' it from AM broadcast transmitters -- but they're giving it away anyway).
>>922893 What if we poison the water in mexico so that it genetically modifies all newborns so that they are slightly magnetic. Then, instead of building a wall, we build a massive coil they have to walk past to get into america, thereby generating electricity. I know it's not "free," but it's free for us.
>>922913 We could make a very steep hill. It'll gradually go from 0° to 93° with a 10 foot streets at the point it stops curving. Hand them all magnets and tail them they'll need it to attach to the top to climb over. Make rows of magnets they have to pass to get there, generating the electricity. If they do manage to make it to the top they'll jump to the edge, miss, and roll down to the bottom to try again. That way we keep most of them out, and the ones that make it past get immediately in the marines and put on the front line as meat shields for tanks.
That'd be silly, because while you could steal some "free" energy from cars driving past, you're stealing the useful energy that they're using to get around.
A much better idea is to use piezo pressure transducers to harvest energy from the natural expansion and contraction of the roadway as vehicles pass overhead. This is energy that is otherwise lost into the environment, which is what makes it ideal for harvesting.
People have the same idea for harvesting energy from sewage lines. It turns out that a lot of waste water is relatively warm (from showers, laundry machines, dishwashers). Rather than letting that heat energy dissipate into the ground around the sewer, people are working on ways of capturing it to perform useful work.
>>925905 I built a prototype from these plans but it's not working. I think I need to make the water fall faster somehow. Like maybe use the generator to power a pump to drive the water down more forcefully, kind of like a supercharger.
>>923629 Just call it an "energy tax" and be done with it. Half of the "New World" energy is bullshit that steals the regular Joe's energy away, e.g. the piezo floors taking my hard-earned walking energy.
Here's a genuine question in a not-so genuine thread... why don't we generate more electricity based on human effort? I mean, with how many people pay to use treadmills and exercise equipment, why not just let them use it for free in exchange for generating electricity?
And then once people catch on etc etc, I'm sure you could literally just hire people to turn turbines. With regulations of course, like time limits to how long you can work someone, etc, but it's the most renewable source of energy I can think of.
I think a lot of the societal problems we have right now in regards to consumption (material and energy) have to do with trying to remove the human element, in terms of manual labor. Like, when the power goes out, I have a little hand-crank radio that I just wind up when I want to hear the weather reports or music or whatever. Why is this treated as a novelty more than a viable energy solution? I mean it's not perfect, but nothing is, man.
>>930106 pointless busy work you mean? because it's negatively efficient. people still ride bicycles. you realize that the materialism meme is just advocating chosen simplicity right? it's like you want to live in a cuckshed and believe its your choice, not just gearing down your expectation to something realistic given your available resources.
>>930118 >people still ride bicycles What do you mean by this? I think what I'm saying is, if people are already going to ride bicycles (or in this case, let's say pay to use exercise bikes at the gym or whatnot), why can't you produce energy via means that people are already doing?
And it's not pointless busy work if it's your job. Like, if your job is to just fucking crank a rechargeable battery. It's busy work yeah but not pointless. I mean I'm sure I'm looking at it somewhat naively, but there's so much emphasis on trying to find renewable sources of energy to essentially turn turbine generators (whether it's wind, water, steam heated by coal, natural gas, or nuclear reactions, that's the main goal if my understanding is correct). I'm just wondering why, with how many people there are in the world, human labor isn't used more to do the same thing.
I mean, if it was broken down further, I guess there are issues like the amount of human effort put in not yielding much electricity, and even moreso the cost of labor itself (one human man-hour vs cost of the amount of coal to produce the same output), the difference in efficiency re: time, etc. But, I never even hear it discussed. Is it really that out of the question? Does it only work on a small scale? Only on an unrealistically massive scale?
Then ofc there's the huge potential for human rights violations, slave labor, etc. So maybe I answered my own questions.
its far more efficient in terms of time and effort expended to just pump energy out of the ground. at the moment we have centuries of crude oil and natural gas left to use. no rush to change anything.
just look at exercise stuff. calorie burning. work out how much energy a person can produce. at full power most big TVs use 400W or there abouts. an athlete can sustain an indefinite maximum output of 200w on a bike. you've just lost 40% to inefficiency in the generator, storage, wiring, distribution system. so now you have 120W produced. pedal for an hour and you have enough to run an electric heater on low for six minutes. or a television for a little over half that time. an air conditioner to cool the house while you all pedal inside, suddenly, negatively efficient. so you need that whole coal power plant infrastructure anyway. OR, you can get eight hours of work on the bicycle for 13c AUD, or 13c per kilowatt hour from your electric company.
so the question you need to ask yourself is this: are batteries too expensive so it's ok to use a wind up toy every now and then or is a whole working day worth more than 13c to you?
>>930134 Now that's the shit I guess I was looking for (without realizing with my first post on the topic) Yeah the more I think about it the more that makes sense. So essentially it's only valuable on a small scale, ie when the power goes out and I crank for a minute to get a half hour of radio.
>>930106 Over consumption and over materialism is driven by government loan policies.
The fed has kept it's thumb Down on interest rates for 30 years. Of course everyone is going to over co sume and buy a new house every 10 years and a new car every 5. That's a staggering amount of resources into cars and houses. Then how about the government subsidy on roads? All that tar and rock and roads to nowhere? Did we really need those? Ther us a history of perfectly servicable private roads and canals in the us. It was early crony capitalism. Prop up auto manufacturers and hold the railroad overa barrel.
>>928838 >>928853 You forgot to convert kilograms to grams (I would assume - heat capacities are usually given for gram masses), so your answer is low by a factor of a thousand. Still not much savings though.
>>930106 >it's the most renewable source of energy I can think of An athlete on a bike connected to a generator, pedaling for eight hours, might generate about a kilowatt-hour of usable energy. The ten thousand or so food calories it would take to fuel the athlete would produce more usable energy if you burned them in a power plant, and they took more energy to grow, process, ship, etc. Switching to human power would actually result in greater demand on non-human power. What kind of energy economy do you think would allow turbine laborers to buy food with an energy content greater than their output?
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