Gearless Magnet Bike
5,575,819
2023-03-24に共有
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コメント (21)
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I guess the next step is to build a superconductor clutch to avoid the heat issues. That'll totally work.
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The positioning of the weights at 7:44 is such a pleasing real-world representation of a log graph, I love it
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The comparison shots of the falling weights was incredibly well done
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Magnetic coupling is very useful for underwater applications, where you want to disconnect the propeller from the internal electronics. Back when I was in highschool, we built an autonomous underwater vehicle and faced a real problem with isolating the propeller's entrance.
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The side by side comparisons are astonishing, it’s amazing to visualise the different behaviours induced by different configurations of magnets and weights
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I'm a physics professor and this whole project is incredible! That's one whole chapter of the textbook in a single short video!
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That was a brilliant, thoroughly well-thought and very well executed way to find out something is a not such a good idea. The effort put into this is admirable!
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I was very dubious at the start, thinking, “oh, yeah, another magnets perpetual motion scam”. . . but no. I learned a lot from this. . . an honest presentation. Nobody’s going to win the Tour de France with this setup (especially me, a 79-year old time triallist)😊
Well done, sir! -
As a bicycle mechanic over in Germany I gotta say, I really love your bike related videos. They give me great aspiration, sadly I lack the funding to copy your concepts for my own fun. But they make great talk in the break room!
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Those calculations with the dropping weight videos were awesome, such an excellent visualization.that section was great!
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I just discovered your channel and I love it! Your editing, your ideas, your explanations — incredibly well done! Thank you so much and this is so cool
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"...and this result wasn't linear" @7:38 Beautiful visualization. Nicely Done!
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As a retired engineer who cycles a lot, I enjoyed this immensely!
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Tom again shows us not only how clever and creative he is, but also just how great YouTube can be with the right content providers!
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Very good job on your thorough research and impressive fabrication skills! You essentially created the opposite of a magnetic braking system like on the Telma system. I drove heavy vehicles with a Telma and they work really well but they generate a lot of heat so you had to mind how much they had been applied.
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Every time you have some different ideas, we see it implemented within seconds in the video. As an engineer, I know the pain anxiety of the challenge to go through implementing ,and the excitement during the test, and of course the joy when the idea works.
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The alternating magnets for stronger eddy currents was a great idea! You might want to look into the Halbach Array (a specific way of alternating magnets) that makes the field strength even higher. I think it might perform better than only alternating the magnets.
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Your meticulous research and trials of materials and forces is truly impressive. Then to advise us that it didn't work as you had hoped shows your humility. Thanks for sharing this whole story.
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The very healthy and honest conclusion at the end nailed it. I´m glad someone has done this, because it was entertaining and informative to watch.
Good luck for the next one. -
I think - The reason why flipping the center magnet works better is the field gets conentrated closer to the disk. Also the eddy current created by the first pair runs opposite to the one the second pair creates. The checkered pattern may be creating less field near the disk.
Nice idea and nice video!!!! Really enjoyed!
