Free energy mod!
Free energy mod!
Comments
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When the battery runs out, you pull over and "pedal" to recharge the battery, then you're good to go again!
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now that is genius!
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I don't own one of these, but that sounds actually useful if for example I'm about to climb a big hill and want to pedal at a less strenuous pace (but for more time) than would be needed to overcome the slope.
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Assisted modes already exist, and regenerative braking already exist
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The traditional method of pedaling uphill less strenuously is to drop to a lower gear. You might go slower, but I'd bet even on existing e-bikes with pedal assist, this is something that's already pretty reasonable now days.
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That's what gearing is for (you just go up the hill slower), but I can see the benefit to not being on the road.
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Gears
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Incredible comment.
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Nice to get a moment to pull out a classic
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As someone who sucks at physics, I'm convinced that Trollface has proposed so many solutions around the internet to provide free energy, but the capitalists are conspiring to sabotage him, just as they did to N.Tesla.
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This is satire… right? I hope it is
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Yet another "engineering student" who hasn't learned his Newtonian physics yet. Which I'm pretty sure is covered in grade school, but you never know.
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I'd go with second law of thermodynamics, but whatever.
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The amount of emojis scream AI generated.
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OR hear me out, AI was trained on these kind of posts. Emoji were overused in similar fashion before the AI bubble. Remember when crypto and NFT was all the rage? Crypto bros were all posting like this. And it worked on gullible people, so now AI does it too.
It's funny how everyone thinks they're AI detectives now.
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LinkedIn has been shit posting goldmine lately.
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Looks like it could even be AI style with all the emojis.
Either way, thanks I hate it.
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Yea I’m 99% sure it was drafted by AI
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There have been idiots before AI. People should still receive
blamecredit for their idiot ideas, instead of blaming AI for every stupid post.
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Likely not only drafted with AI, but only pursued because he entered the idea into ChatGPT and asked "is this a good idea?," and uncritically took ChatGPT's enthusiastic support as vindication.
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I have never seen the Arabic language translation of this meme but I immediately understood it from having seen the English version.
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I had this exact idea... when I was 7. That was before I was introduced to newtonian physics.
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It's a good idea, even if it can be ruled out. That person should offer more ideas. All of those Newtonian physics people never seem to offer up ideas.
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You were introduced to classical mechanics at age 8?
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They could've heard of Newtonian physics at any point between when they had the idea and now
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They can understand some basic concepts before you get into the math. Especially potential energy turning into heat, which children experience firsthand frequently. IMHO kids these days seem to understand energy more easily than we did; I think it's because of video games.
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Perpetual motion machine aside, where tf is bro going that the range of an ebike isn't enough, but the speed is
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Tbf it wouldn't be a perpetual motion machine because batteries -- even rechargeable ones -- have a limited capacity that reduces over time because they are a chemical reaction, the components of which degrade over time.
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Mechanical engineering student huh? Good to know he didn't attend class on day 1 of dynamics
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Mechanical engineering student huh?
1 week
This is a normal trajectory for college freshmen. Get introduced to a bunch of basic ideas. Spitball and try to see how you can apply them. Start running into all kinds of caveats and engineering hurdles. Go back to class. Bother the RA. Maybe actually learn more about what you're trying to accomplish. Become a better engineer.
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Not believing you can create a perpetual motion machine should practically be an entry requirement. If you think you can you need to go back and do high school science again.
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Nah, engineering students often forget and design perpetual motion machines. Usually, they remember why that is stupid and impossible before they post it publicly where I can haunt them forever.
It should be a graduation requirement. It really should be...
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This guy apparently doesn’t understand the first and second laws of thermodynamics. However, in his defense, this is sorta how regenerative braking works, but with less complexity.
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Regenerative braking was my first thought.
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It's impressive that he figured out how to create a post though, considering room temp iq (during the winter in a commie block apartment, in celsius)
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Bro forgot to pay attention to thermodynamics.
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I once had an exam question that began with the phrase "ignoring thermodynamic principles...". That question really threw me, it basically asked what would happen under XYZ situation if physics didn't exist. How the hell am I supposed to know that?
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Either he's lying about being a mechanical engineer or the barrier to entry to become a mechanical engineer is embarrassingly low.
It this guy seriously proposing a perpetual motion machine for the purposes of EV charging? Also not that it really matters but who the hell has range anxiety on an electric bicycle. You get 30 miles out of those things easily, what sort of bike rides is he doing where you have to recharge that more than once a month?
He should try recharging a solar panel with a light powered by the solar panel. Just achieving infinite power.
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I've gone as far as 55 miles in one bike ride, and hope to do a full century ride someday. 30 miles is not at all out of the ordinary for bicyclists.
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what sort of bike rides is he doing where you have to recharge that more than once a month?
My distance to work is 12 km one way, so your battery would be empty afer two days...
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16km for me and I'm not even leaving the city, this battery would last a day, not that I need it.
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He's probably lying. While the bar is pretty low for entry level M.E.s, it's not quite that low yet.
As an old Toolmaker, I have made my share of intern wannabe MEs cry after crushing their idiot ideas. I swear, the older engineers would send those clowns to me just so I would beat them about the head and neck with a stick.
(I have a Daughter that has a PhD in ME. I warned her to turn down the free lobotomy offer upon finishing her degree. She listened and is now a happy and very, very smart Dr. of Engineering working with EV and HVAC systems)
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Don't be so hard on him. He is still a student and got to learn.
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Wow, excessive emojis and em-dashes... Not ai at all
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My LinkedIn feed is like 90+% AI at this point. I don't know why anyone bothers looking at the "content" on that website anymore. I only see it just incidentally on my way to the job listings and I am always shocked at how terrible it is
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with uBlock Origin you can just filter the feed
www.linkedin.com##[aria-label^="Main Feed"]
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Newton? Never heard of him.
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Why not cut out the middle man and directly charge battery 2 with battery 1? Switch and repeat.
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wow, you did not have to call out my subnautica in-cyclops power cell recharging stations for spare cyclops batteries like that
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This is dumb as shit ofc, but it gave me an idea that's probably nearly equally dumb as shit:
Regular bicycle, but with an extra gear that can selectively connect to the chain or wheel or w/e, that's connected to a coil torsion spring on a kind of ratchet release.
Basically you flip the switch when it's a good time to rob some energy like when you're on level ground or going down hill. That energy makes you a tad less efficient (but you don't care cuz it's level or downhill), and uses that energy to wind up the coil torsion spring up until a max amount of torque is stored.
Fast forward a bit: now you're approaching an incline, so you flip the switch the other direction and that torsion spring regurgitates that energy back into forward motion, giving you a nice forward burst when going up a hill.
Not free energy by any stretch, but a strategic use of what you're already spending.
Feel free to explain why this is a horrible idea - I'm about as far from a physicist as it gets.
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That's effectively what hybrid cars do.
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F1 has been using this principle for years
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That's just regenerative braking on a bike. Without batteries.
In theory that idea isn't actually bad although I suspect in practise the mechanism would be extremely complicated and would be liable to jamming it in opportune moments. That said doing this electronically is already a thing, although not really in e-bikes.
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pretty sure hybrid cars have regenerative braking - the car uses the motion to recharge the battery when braking, going downhill, or coasting
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Dynamo lights work off a similar principle. It extracts energy from pedaling or the wheels spinning to power lights on the bike. You can feel the drag and it's probably about 5w of power. Really not a whole lot. About the same energy you'd save from wearing smooth socks or cleaning the chain for some perspective.
The extra weight required to implement a solution like yours would probably rob the rider of any gains. But in a very theoretical sense it could work if the material weighed an insignificant amount.
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Why flip a switch when you can just let the bike sense if it is going up or down hill?
Would make hilly terrain a much smoother ride.
Then again, if you do all that electrical, you already just have an electric bike. Which is even more versatile on flat ground.
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With this many emojis and em dashes, he's probably engagement farming using llm content, regardless of the thermodynamics gaps in logic
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This has to be a parody account right?
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Either that, or he's not very smart, had a thought, poppet it into ChatGPT, and ChatGPT as it tends to do, affirmed his dumb idea, and he ended up asking it to make a Linkedin post for him on the idea.
I've seen similar stuff from students who think they've cracked how something works, only to be incredibly wrong, because they only know half of what they need to, but don't know enough to understand how little they know. It's part of the journey of getting sorta-good at something though.
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It's almost as if one object perpetually moves something that creates a form of motion perpetually to continuously move that first item. Like a continuous motion machine or perpetual movement apparatus. Something like that. I feel like my naming is close, though.
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Seems like satire to me. Pretty funny too.
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The Law of LinkedIn:
If you think it's satire, it's probably actually just a really stupid individual.
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If free energy was ever to be discovered it just wouldn't come from some LinkedIn dipshit posting with AI, sorry.
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This guy is only telling us part of the truth. You actually need three batteries. The third battery is hooked up to a solar and wind generator. Only then can you achieve true energy independence.
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don't forget to add quantum tunneling between the batteries for extra efficiency
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got to also involve nft, blockchain and ai somehow
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Make sure to invert the polarity of the dilithium matrix. That always seems to help.
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So you're on your ebike, going 15mph. Using 140w or so. You're spending 15-20w on the drivetrain, and the remainder is entirely aerodynamic drag. You're putting 120-125w into making wind move. You're also losing 5-10 watts to the drive electronics and dashboard. So your total power use is 150w.
If you're going to recharge a battery. In the same time it takes to ride, you need to get at least 150w of power into another battery. Sadly, batteries don't actually "just cleanly charge" there are some losses, but since we're going to take an hour to charge it, lets call it 5%. So to fill up that battery we need 157watts of input power.
Your bike, moving at a steady speed, is absorbing 150w of power. If we want another 155w of power, where is that going to come from? If we take it from.. say.. the front wheel, we are now absorbing another 155w of power. So to maintain the same speed, we now need to push the bike along with 305w of power. And.. now we need a bike that makes 305w of power, to go the same speed we were going with 150w. .... And we're only generating 155w.
There is no free lunch. If you're doing work, you need to get that power from somewhere.
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Counterpoint:
Hills exist, go down them.
Like, the whole point of these things, at lesst as I see them, is that you get that free lunch on the way down a hill, then when going up a hill, well yeah, you still aren't gonna like, be 1:1 be able to power right back up it, but it will be easier going up that hill than if you did not have your free energy lunch on the way down.
This then results in you not needing to expend as many literal calories going up a hill, so now, you don't need as much food to recharge after a ride, thus you do actually on net come away with at least a portion of a 'free lunch', in that you don't need as much food.
But yes, I will give you that... the overall weight added to the bike from the batteries would have to be in a manageable range, so that the uphill assistance is not just entirely used on uh, pulling its own weight.
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The problem with "go down a hill" is that the LinkedIn idiot wants to use the power of one motor to generate power in the other. Regenerative braking only needs one motor and it acts as a generator when braking.
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You do get about 5-10% more range with regen on an ebike, the downside is it needs to be a hub motor which sucks at climbing hills, and one with no internal clutch which means pedaling with the motor off wastes a ton of energy.
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So like regenerative breaking for e-bikes? Except that such a thing already exists.
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Apparently regenerative breaking efficiency in bikes is rather limited (small motors / generators, high friction). It still increases the range a fair bit (enough to be a better investment than bigger batteries), but efficiency is still not as high in bikes as in bigger vehicles which can drive more kinetic energy into bigger generators with better individual wheel control
Some paper says ~25% extra range in bikes at the high end vs ~50% energy savings in Japanese trains. Different units for those numbers, but you can infer that trains has much more efficient regenerative breaking because that number indicate a doubled range for the same amount of energy used.
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I have a very high end e-bike (because I'm bad with money) and it doesn't have regenerative braking so I don't think it is a thing.
I know regenerative braking is a thing but it just doesn't seem to be on ebikes all that much if at all.
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Does he have a fundme or patreon page? I think it's worth supporting his research if it can be applied to cars and trains one day.
If somebody is an airplane engineer, is it possible to do something like that with planes? It would be great if planes could become environmentally friendly with such technologies.
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There was actually a prototype environmentally friendly airplane designed and tested back in 2000 during a genocide in Yorkshire that I feel like isn't talked about enough. The plane, using bicycle technology, was successful in transporting all of the local populace to safe territory with the help of a veteran Royal Air Force member and an American entertainer posing as a flight specialist. Really an incredible story and there's still footage of the flight. but I don't know the status of the airplane today.
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Thank you for the levity.
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Hello, I am the owner of a large investment fund and I am willing to offer 1 billion dollars to develop this young man’s technology
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They are already trying to EV airplanes.
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Is this serious or a joke? Regenerative braking and other energy recovery methods have been standard on electrified vehicles for decades. Electric planes do exist, but the problem is that the mass to thrust ratio for electric motors is worse than jet engines. Most successful ones are pretty small and light.
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I think you don't fully grasp the genious, magnitude and potential of Aryan Bhambure's invention. A continuous self-charging loop would essentially eliminate the time wasted on charging batteries. There would be no limit on the range of a car.
That's even more interesting for planes, given that a transfer is possible. As others have mentioned, the technology is heavy, which could make it unsuitable for planes. But if those limitations can be overcome, direct flights between all places of earth become possible. I think that's an advancement to humanity that's worth our support.
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Techbros rediscovering old principles, a tale as old as....well, since the tech industry.
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At this point just cut the middle man and have battery 1 directly charge battery 2, then reverse it when it's done. Same results with way less hassle
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I am not well versed in modern electric bikes. Do they offer regenerative braking yet?
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Yes but they do not offer regenerative... Accelerating
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My e-bike dosen't have it and it's sounds pretty complex to add efficiently on a bike. It's just take like 5 hours to charge in a normal output. And every corporate building have outputs for e-bike so I can charge while working.
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It's very doable if you put the motor inside the back wheel. Because then it's very easy to run the motor as a generator.
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Unironically, I would enjoy a bike that I could pedal at a constant speed, charging the battery all the while. Give me a display that indicates my pedaling speed so that I can tailor my exercise and you’ve created a moving stationary bike. I hate having to stop at lights and whatnot, so a rotation-based stabilizer would be nice at speeds below 10 km/h as I pedal the equivalent of 30.
Really, it’s just unfortunate that the engineering doesn't work out for momentum->chemical energy unless you’re biking at a professional level and willing to cruise slowly or charging the battery at home. Bleh
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Yeah, same, I like this idea.
If your actually mobile bike can also be used as a makeshift generator, to feed into a home backup battery?
Yeah maybe not huge levels of appeal there, but it is a neat utility feature.
Maybe I've played too many zombie survival games with base building... or, maybe I am aware of the shockingly shitty state of the US power grid.
Also:
If you have a bike, and battery/powerstation like that?
That leads to a potentially amazingly ironic situation where you effectively jump start a dead ICE car ultimately from a fucking bicycle, if you can hook your battery/transformer/power station thing to charge a portable car battery jump starter.
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Honestly this would make a great video idea for Tom Stanton.
I love it, and it reminds me of James May talking about using launch control at a zebra crossing
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Unrelated, but the pedaling cadence people have on ebikes bothers me. I'm always seeing folks in a high gear slowly pedaling. I'm like dude you're sacrificing watts! Pedal faster on a lower gear, you'll use the same energy but go faster.
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You get into the habit of just ignoring the gears because it doesn't seem to make any real difference. Sure been in a lower gear is more efficient but it doesn't feel any different so you don't think about it.
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You could harvest energy from going down hills and braking, but that’s probably not work the weight.
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For each second of using regenerative braking, you can accelerate for 0.7 seconds.
But how much do you actually brake when riding a bicycle? That's completely neglectable (at least for me).
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Electric cars already do this and I'm sure there are some smaller electronic mobility devices that also do regenerative braking. It's not exactly a new concept.
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What added weight? If there already is an electric motor on the bike you can just use that as a generator during braking or coasting down a hill. That’s what EVs already do.
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I had this idea 30 years ago lol. Bicycling in headwinds in windy and flat Denmark gives you a lot of time to think of dumb shit like that, like what if I put small wind turbines on my bike which generated electricity to give me a boost?
We've had windmills as part of the landscape here for a long time after all, so it wasn't exactly rocket science to think that one up.
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Wind being an outside source of energy can actually make this work. As long as the wind is blowing, not just your own motion making it feel windy.
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Actually, that jostled my memory a bit, I just remembered that I saw a veritasium video about this a month ago or so, while it wasn't about generating electricity and using that for a motor, but just straight up wind to mechanical energy.
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Or you know, a sail.
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🤦♂️
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He must quickly Patent it and get venture capital funding for this brilliant idea!
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Nobody will even consider listening to a pitch to schedule a phone call to listen to an elevator pitch for consideration for a short phone interview to be considered for a meeting to speak with the board, unless it includes AI for some useless reason.
So add AI.
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I cannot facepalm any harder. Dude that's some 8yr old question shit
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Fun fact, similar tech is already widely used, in gas cars too, that's how the battery is charged :)
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It's not free energy, but there's at least one bike called the Pi-Pop that works this way in order to spread the energy demand from hills across more distance for the rider. It's an electric bike you can't plug in, it only charges from moving
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There is one particular mine, I forget where, and they extract ore at the top of the hill and carry it down in electric trucks that gather more energy on the downhill run than they need to get back to the top when empty, so they never need to be charged.
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That's awesome, reminds me of a common historic setup where cable cars were used kinda like that (heavier on the way down)
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Not for nothing, but I just posted from the future!
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Oh god, lemmy has figured what Google Stadia couldn't!
No, no, I am never going to forget how insane of them it was to claim they could deliver 'negative latency'.
God fucking damnit, I am apparently still mad that happened.
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Oh, yeah, I had that issue for a while. I think my computer clock was differing somehow from the server clock, and I was always a few minutes in the future.
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There was this browser game (on the BBC website IIRC) with a Wallace and Gromit theme, in which you build stuff.
It had a level in which you make a vehicle-ish contraption and see how far it goes ^[or more like whatever contraption you can make to get the dummy to go as far as possible. Could even be a cannon, launching the dummy.]. I managed to setup a motor and generator in such a way that it effectively increased the vehicle's range by quite a bit.
I don't remember well enough now, but I think the generator didn't give as much resistance as the energy it was creating. -
I mean... regenerative braking is a thing.
My hybrid Prius C had this, and yes, you actually can build up some useful amount of charge from just rolling down a decently large or long hill, and you can also run the car on pure EV mode, though you're probably not gonna top 20 mph on a flat road.
Obviously this does not create an over unity situation or perpetual motion machine, but, if this guy can figure out a way to put a regenerative braking type device onto an E-Bike, or maybe motorcycle/moped, in a way that isn't stupid expensive...
That could increase overall range, and I think it would be neat.
Though I... don't really know why you wouldn't just use one battery for the whole system, just have a modulation/regulation system for it.
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If he removes battery 2 and charge directly battery 1 (as it's pointless either way and adds weight) maybe he can figure out what's wrong.
Or it's ai slop.
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Has to be a joke
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Do most e-bikes not charge from the pedals? Combine that with regenerative coasting/braking, and this isn't really that dumb. Like yeah, obviously thermodynamics, but an E-bike with pedal charging isn't a closed system.
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Regenerative braking is not worth it on bikes... it's worth it on cars because you are slowing down over one and a half tons of weight and going much faster so there is serious amount of energy to be recovered
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You’d basically need electronic braking for this to work. Which should be theoretically possible since we already have electronic gear shifts. Would be tricky to get the feel right in the transition between motor to friction.
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The pedals seemed like the bigger contributor, I just added the other for a few percent.
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I've built two eBikes and can confirm that they do not.
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I have a better one: charge from temperature gradients as it moves through new areas.
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I don't claim to be an engineering student, why is this a bad idea? Wouldn't he just put a "collector" of energy (like a wind turbine) on the wheels?
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It would wash out. Any energy collected would be at the cost of resistance. So add fans to add wind resistance. You could collect energy from coasting and braking, but that's just tech we've been using for years in cars, and it comes at the cost of movement. It actively slows you down because the energy has to come from somewhere. And since energy conversion is hardly one-to-one (loss to heat, etc), storing it into a battery and then pulling it out again means you won't gain as much as you lose.
Energy cannot be created or destroyed. If you are generating energy, you're taking it from somewhere, and on a bike, it's from your forward movement.
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What happens to an object in motion when you collect its kinetic energy?
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Alternators exist on a car, why not on a bike?
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Okay, I admittedly know nothing about this, so bear with my ignorance. Aren't you just moving gears? It would generally be like an auto engine where you have all of these explosions that push gears. You're just moving the gear in one direction as a click, click, click.
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It's a bad idea because he's essentially talking about a perpetual motion machine.
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That makes sense, except the collection of the energy can be less than the energy expended, like an automobile or wind turbine. Then it could be a perpetual machine.
It would be like this:
Energy in => convert to a gear that makes it way more energy => store energy, repeat.
I must be missing something.
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It could be an OK idea that just wasn't explained right. Maybe he just wants regen braking but with one wheel for charging and the other wheel + separate battery for power at any given time. Energy would come from pedalling and hills. None of that was explained though
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Maybe you can join his team!
But I can forgive a non engineering student… its impossible.
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so, obvious reasons why this cannot work.
Is there anyway to like, siphon off the energy though? Like say, you pedaling produces 600kJ/hr. You have 400kJ/hr going into the bike to produce motion, but then 200kJ/hr goes into a battery. You'd move slower but generate stored potential energy.
I'm not really sure why you would want this, other than the concept of a self-charging electric bike, but on paper it sounds possible?
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Yeah, it's called a dynamo, used for decades for powering headlamps on bikes before small batteries and LED lights. Still, the energy generated is pretty small.
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You would need to output far more than twice the energy that you would get out of it and the effort to pedal would be significantly increased as you would have additional weight to the bike on top of whatever it was drawing.
Taking 1/3 if your pedal power would be like trying to bike through deep mud just to have a small boost later.
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A normal bike drivetrain is around 95% efficient, which is more efficient than the Regen circuitry you could get in such a form factor. Therefore it makes more sense to use pedal power for direct propulsion since that will directly reduce battery more efficiently than using it for charging.
This is different than a series hybrid because car drivetrains are very inefficient compared to a bicycle.
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It would only make the bike slower and have less range.
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Physics's older brother gonna be looking for this guy.
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I see a lot of people clowning on this guy but is it possible that something like this could come in handy for commutes with elevation changes?
Coast to work and charge the battery, use pedal assist on the way home uphill.
Seems too niche to sell a bike for this, though.
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That's how regenerative hybrids work, IDK if a bike has enough mass though.
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It does. Ebikes with regen brakes exist
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That’s not really how regenerative hybrids work. Turning linear motion into stored energy produces drag, aka braking, so when you hit the brakes, why not store some of that energy that would otherwise just be lost as heat in the brake pads. They’re not just finding extra energy to store for later while you travel downhill unless you have cruise control on (which is to say, unless the car is braking).
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Not really, even in this hypothetically perfect scenario. Either the hill isn’t steep enough to generate any real excess energy from rolling down it (too much drag and you’ll stop rolling) or it’s steep enough that what you collect is offset by how much energy the ride home requires. The more potential energy you save for later, the slower you’re traveling now. And you can never cross the threshold to where it’s helpful. You’re trying to steal energy from a closed loop. It’s the “bowling ball dropped from face level” problem all over again. It can never get enough potential energy from its trip away to come all the way back.
Storing pedaled energy is pointless too.
Let’s say one regular old pedal rotation propels you 10 feet.
Let’s instead store 20% of that energy for later. You now only travel 8 feet.
While we’re converting that energy, we lose a quarter of it due to inefficiencies in the process. So now we’ve traveled 8 feet and stored 1.5 potential feet.
Pedal 1000 times. We go 8000 feet and store 1500 potential feet. Stop pedaling, turn on battery support, we go 1500 feet, we get 9500 total. 500 less than an unmodified bike. That’s excluding additional system inefficiencies like the added weight of the modifications and the mechanical efficiency of the pedal assist. It’s more efficient to just pedal.
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or get a better battery since ur saving a lot of weight by not doing any of this. My research idea is not doing his.
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It's almost like, it regenerates its energy
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So an alternator?
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No.
An alternator draws energy from the engine spinning but the draw uses more energy than the alternator puts out. It is a conversation system from mechanical to electric power.
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The device being described in the image is an alternator: a device that captures energy from the movement of the machine.
I think everyone on this thread understands that alternators do not overcome entropy and that there is no infinite energy, but that’s besides the point.
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Did not pay much attention in high school
Look out for v2.0 which also features a sail on the front which you blow to go faster.
Okay, but blowing on a sail to go faster is actually a thing. Mythbusters even stated that they did their experiment in the worst method (i.e., not using modern designs and methods), and still found that a fan on a sail could make it move. It's not free energy, but let's not ignore how cool sails are.