DC MOTORS AND GENERATORS - Department of Defense 1961 - PIN 29942 - DESIGN, APPLICATION, AND OPERATION OF BASIC, SERIES, SHUNT, AND COMPOUND WOUND TYPE DC GENERATORS AND MOTORS.
i think its because its hard to make a video back then, so they have to think it through and revise every detail before screening? whilst now i can just pick up my webcam and explain.
+cok Bagus That is true, but some of the newer videos involve the creation of detailed 3D models and animations that also take a long time to produce, and they still can't hold a candle to these classics.
the dumber the population, the more it is dependent on the state. Therefore, it is in the interests of those employed by the government to make education as shitty as possible. Government must be removed from education entirely.
The reason these old vids are so good, is that they were training films for young men enlisting or being drafted into the military. We rely on these young people to maintain our submarines,tanks, etc. They kept it practical and basic to get you into the field quickly.
@Tbone productions It's very good through about 13:30, then crashes and burns. The leap in background required to follow along jumps enormously, so that you have a very basic, sound video for the first 2/5ths, then a preposterous digression into shunt wound generators, then we go back to simple battery and magnet demonstrations around 17:40. Strange video indeed, but worthwhile in many respects.
I was in the military and all their training videos are still like this. Very intuitive and direct, they set training on a step level and repeat information to drive it home and make it easy. I was in the Marines. It is good ya know.
the dumber the population, the more it is dependent on the state. Therefore, it is in the interests of those employed by the government to make education as shitty as possible. Government must be removed from education entirely.
I owe a debt of gratitude to the older generation for this......none of today's computer generated videos can match the quality of this instructional film....it's just so well presented and clearly explained. .., this old film taught me more about motors than any other crap videos put out on RU-vid.
I often seek older information sources regarding basic principles for their explanatory simplicity and their lack of reliance on unnecessary gimmicks such as cumbersome and overwrought animations. When I was teaching electronics years ago, my go-to video series was The Mechanical Universe and Beyond. The math might be a little thick for those uninitiated to calculus--especially in the episode on Maxwell's equations, but the animations are clean and perfectly complement the narrative.
guys, can we just take a minute to appreciate how well the animation was produced, i mean look at the rotors, mags, commus and current flows, it has everything and looks so familiar. can you believe they made this in the early 60s? just wow! and conceptually it did a good job as well, it conveyed every bit of info modern graphics can deliver, and i'd say it did even better than a lot modern ones. but, on another note, this probably cost a lot of tax money, and i say it's well spent... :b
This video is pretty amazing in that I am currently taking Electronics and Physics classes at night and the content in class is so convoluted that it is difficult to pull the simplicity of the presented material for comprehension. example: "The postman is walking, he is stepping at 75 steps per minute and each step is 150 cm high. If he had magnets on his toes and the ground was made of copper. he would create voltage. That is how generators work" That, of course, was an exaggerated example but yet not too off par.
This is one of the most concise explanations of this I have ever encountered. The military didn't mince words, these videos had to be on point and clear. Just as relevant some 60 years later.
This way of showing the schematics of a DC motor/generator is way better than the way my book try to explain, which is kind of more complex. This is exactly what I wanted as I wished to know the functioning before going ahead to the equations. Thanks!
this is the best video I have ever seen I have a class on DC machines and DC Motors and with this 30 min video I learned more and more than 3 months we spent in the class
Absolutely wonderful videos. They're more fun and educational than most other videos I have seen so far. I am currently learning how motors, generators and electricity work as a whole and your videos are exactly what I needed. Keep them coming.
this is insane. Will be using this to learn some of the basics that have eluded me. But it's shockingly instructional. And the best part is I can always rewind and watch something I didn't quite get
Love these types of videos. You just dont find it anywhere in today's teaching where they would explain in simple terms and actually takes the effort to let us understand. Inspite of the usual boring stuffs to just explaining it and leave it for the "bright minds" to understand they do think about "us".
Why are old books and videos so much better than the new stuff? I just gained more understanding in 35 minutes than I did in a whole semester of circuits. Thank you for sharing.
This sort of video we did actually have in school in a few classes...good teachers realized it was a good way to learn. I'm always thankful of my shop class teachers for that.
I have worked with direct current motors for years and never could have understood the relationships of the parts. I change brushes because of sparking- never knew what I was doing or why. Now I am getting a better idea. Finally, I'm getting electric motor education. This is so cool to me.
High school student here. Found this light-years more helpful than my physics teachers and worksheets. I doubt they even know what they are talking about half the time.
Even though this video is old , but it's like years a head of it time ... it was very clear and simple , my 6 years old brother could understand it easily . PLS more documentaries like this and thank you so much for taking the effort ..
@ 8:45: now you know why we studied trigonometry! This is the clearest explanation of sinusoidal electrical waveforms I've seen on YT, and it's been around 50+ years! Were have I been??
because was made for military people, that have to be faithful to the flag, but not required to be scientist or graduate; they have to learn the essential in very few time. these video should be used in every college, the quality is very high, because was made by the State for his personnel. The market is another thing...
This video is better than any other new video published on this topic and that's why all of us watched till the end.I hope to watch many interesting videos on this channel..mm yah. 😊 hope you guys continuing.Thanks for this video! wish you all a happy new year with glee.🎡
When education that dates back 50 years ago is better than current education today. You know that our coming generations are fucked. Seems like every teacher I come across always has contradictory, or missing details. These videos clear every question that I have. It's quite amazing.
I was just about to post exactly the same thing unsure if I was missing something, then looked down and saw your comment and realised you'd beat me to it. Good spot!
THIS VIDEO IS AWESOME I've known how Ac and Dc motors work but didn't really have a clear understanding of them.OUT OF ALL THE VIDEOS AND BOOKS I'VE READ THIS IS THE BEST THE keeps you from being confused all the time :D
Work in a mill that still uses MG sets for all of our DC motors and speed control. Such old technology but still reliable to this day when properly maintained
I aggree with all other comments. Really fantastic how a so old video coudl be lots better than any actual university course! How many years back is the education today! Videos like this are lacking today for the understanding of science and technology!
Starting at 25:00 this video explains very clearly how a train, subway or streetcar starts. For stop and go transportation DC is the most efficient. For long run, high speed transportation, AC is the best, higher voltage through thinner powerlines. Both AC and DC have their (dis)advantages for public transportation.
