this post was submitted on 16 Oct 2025
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LinkedinLunatics

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A place to post ridiculous posts from linkedIn.com

(Full transparency.. a mod for this sub happens to work there.. but that doesn't influence his moderation or laughter at a lot of posts.)

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[–] billwashere@lemmy.world 52 points 6 days ago (4 children)

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.

[–] Smeagol666@crazypeople.online 8 points 6 days ago

Regenerative braking was my first thought.

[–] Bluewing@lemmy.world 10 points 6 days ago (4 children)

Most people don't. There is just no free lunch to ever be had.

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[–] Agent641@lemmy.world 64 points 6 days ago (1 children)
[–] BigPotato@lemmy.world 12 points 6 days ago

I have never seen the Arabic language translation of this meme but I immediately understood it from having seen the English version.

[–] sugarfoot00@lemmy.ca 64 points 6 days ago (5 children)

I had this exact idea... when I was 7. That was before I was introduced to newtonian physics.

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[–] pfr@lemmy.sdf.org 44 points 6 days ago (2 children)

Wow, excessive emojis and em-dashes... Not ai at all

[–] markovs_gun@lemmy.world 9 points 6 days ago (1 children)

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

[–] Noja@sopuli.xyz 8 points 6 days ago* (last edited 6 days ago)

with uBlock Origin you can just filter the feed

www.linkedin.com##[aria-label^="Main Feed"]

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[–] Valmond@lemmy.world 34 points 6 days ago (1 children)

Why not cut out the middle man and directly charge battery 2 with battery 1? Switch and repeat.

[–] HeyThisIsntTheYMCA@lemmy.world 11 points 6 days ago* (last edited 6 days ago)

wow, you did not have to call out my subnautica in-cyclops power cell recharging stations for spare cyclops batteries like that

[–] AnimalsDream@slrpnk.net 76 points 1 week ago
[–] echodot@feddit.uk 44 points 6 days ago* (last edited 6 days ago) (9 children)

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.

[–] AnimalsDream@slrpnk.net 12 points 6 days ago

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.

[–] titanicx@lemmy.zip 10 points 6 days ago (10 children)

30 miles is laughably low. A single ride would drain it for me. To go to store it would take 10 miles, not counting anything else.

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[–] ShinkanTrain@lemmy.ml 55 points 6 days ago (6 children)

Perpetual motion machine aside, where tf is bro going that the range of an ebike isn't enough, but the speed is

[–] Steve@startrek.website 27 points 6 days ago (2 children)
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[–] captainlezbian@lemmy.world 48 points 6 days ago (3 children)

Mechanical engineering student huh? Good to know he didn't attend class on day 1 of dynamics

[–] UnderpantsWeevil@lemmy.world 21 points 6 days ago (2 children)

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.

[–] echodot@feddit.uk 11 points 6 days ago (1 children)

Knowing you can't invent a perpetual motion machine is like high school level science, so being a first year college student isn't an excuse.

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[–] Quexotic@sh.itjust.works 2 points 3 days ago

Someone has been spending too much time on ChatGPT.

[–] MonkderVierte@lemmy.zip 8 points 5 days ago

A mechanical engineering student that doesn't know the law of energy conservation?

[–] camelbeard@lemmy.world 22 points 6 days ago (2 children)

This has to be a parody account right?

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[–] lka1988@sh.itjust.works 15 points 6 days ago

Techbros rediscovering old principles, a tale as old as....well, since the tech industry.

[–] solariaseven@slrpnk.net 24 points 6 days ago

With this many emojis and em dashes, he's probably engagement farming using llm content, regardless of the thermodynamics gaps in logic

[–] Sterile_Technique@lemmy.world 24 points 6 days ago (6 children)

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.

[–] Amir@lemmy.ml 22 points 6 days ago

That's effectively what hybrid cars do.

[–] Ookami38@sh.itjust.works 21 points 6 days ago (1 children)

Essentially regenerative braking. Should work, though the question is how coat effective.

[–] Windex007@lemmy.world 14 points 6 days ago (1 children)

Wrong question.

Right question: When the fully torqued spring inevitably fails, who is liable for the deaths of the rider and nearby pedestrians?

[–] 01189998819991197253@infosec.pub 13 points 6 days ago (3 children)

Wrong question. That one is answered with a EULA.

Right question: how often can we make that torque spring break, forcing the buyer to buy another one, without them realizing it's failure by design?

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[–] the_mighty_kracken@lemmy.world 18 points 6 days ago

F1 has been using this principle for years

[–] echodot@feddit.uk 13 points 6 days ago (1 children)

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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[–] fodor@lemmy.zip 5 points 5 days ago (1 children)

Yes, many electric bicycles power themselves while going down hills or costing. As for the other idea that you could recharge them just by pedaling ... That exists already. Almost nobody wants it because it's easier to plug your bicycle in. The point of the electric bicycle is to do less work, not to do more. Otherwise you would get a regular bicycle because it weighs less.

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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.

[–] Doomsider@lemmy.world 15 points 6 days ago

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.

[–] plyth@feddit.org 10 points 6 days ago (5 children)

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.

[–] Cataphract@lemmy.ml 16 points 6 days ago (1 children)

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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[–] a_postmodern_hat@lemmy.world 8 points 6 days ago* (last edited 6 days ago)

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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[–] shawn1122@sh.itjust.works 17 points 1 week ago (1 children)

Seems like satire to me. Pretty funny too.

[–] AmbitiousProcess@piefed.social 17 points 6 days ago

The Law of LinkedIn:

If you think it's satire, it's probably actually just a really stupid individual.

[–] iAvicenna@lemmy.world 13 points 6 days ago (2 children)

don't forget to add quantum tunneling between the batteries for extra efficiency

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[–] hodgepodgin@lemmy.zip 11 points 6 days ago (2 children)

So like regenerative breaking for e-bikes? Except that such a thing already exists.

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[–] ulterno@programming.dev 6 points 6 days ago

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.

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