Views : 2,661,160
Genre: Howto & Style
Date of upload: Oct 8, 2021 ^^
Rating : 4.937 (1,175/72,966 LTDR)
RYD date created : 2022-04-09T20:51:38.726089Z
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Top Comments of this video!! :3
We need an army of guys like this. The thing that often gets overlooked in education is the role of the teacher as inspiration. He knows things, and this is good, but he also conveys the enthusiasm and joy that comes with play and experimentation. For me, fifty nine some years ago, it was a Bell Telephone lineman feeding me old telephone parts and encouraging me to build my first working telephone. I will always remember him.
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8:00 The old analog car speedometers worked similar to your model. A circular magnet was spun by a flexible cable driven by the output shaft of transmission. This magnet was surrounded by an aluminum housing that was constrained to rotate only 1/3 of a turn by a torsional spring. The faster the magnet was spun, the stronger the FORCE imparted on the aluminum housing, thus the farther the spring was stretched, and the farther the housing rotated. The speedometer needle was glued to the housing, and served as the speed indicator.
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I'm a retired power engineering and have commissioned countless induction motors and generators of all sizes up to many megawatts and still find this video about the induction motor interesting and entertaining. I have also watched part of the series on the history channel and found that very good viewing. Jeremy - you are a great presenter.
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My first degree was a professional diploma in Electrical Engineering (from the National Technical University of Athens), and then got to study Computer Science where I am still active today (as researcher/instructor/consultant and developer). Of course, because of my training, I am very well aware of all the principles and applications of electro-magnetism. Even though I didn't like the electrical machines courses that we were taught as undergrads, I really loved your presentation! Congratulations for this beautifully made video that has "soul".
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Clarification: The history channel asked me if I would make a YouTube video about revolutionary engineering, related to their series on engineering coming out this month. I think their show is awesome, but I am not "in" the show. 😀 Sorry about the confusion if that wasn't clear. You should definitely watch the show if you can!
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@smartereveryday
2 years ago
Dude this made me feel like a kid in all the right ways.
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