AT&T Archives: Similiarities of Wave Behavior (Bonus Edition)

It is not "hard" after some practice, but you need to be willing to learn. In general, DFM is a specialized area most EE have zero training in unless they chose to study it as an option. John Shive's Wave Machines is where every student should start: ▶ this video Remember to have fun =3

Get a ham radio technician license, and you may develop an intuitive perspective on most electrical engineering concepts. i.e. the physics lab derivation of the core EE tool set is unnecessary if you understand what the models are describing. AI is slop in and slop out... and dangerous to students... =3 John Shive's Wave Machines is where every student should start: ▶ this video

Thinking of an electron as a thing that travels from the start of the circuit to the end results in a bad mental model. Think of it as a wave, and then watch this video ▶ this video . Then you will have a strong mental model.

This very old video does it all explain better than all todays videos. The models are just so simple, no animations. ▶ this video

This outstanding 1959 movie from Bell Labs demonstrates standing waves, impedance matching, and more in a very nice way using a couple of Shive wave machines, hosted by Dr. Shive himself [1]. [1] ▶ this video [2] link

Bell Labs' 1959 video "Similarities of Wave Behavior." By far the best introduction to the subject of waves of any sort. ▶ this video

I've never understood why these old instructional films so often seem much better at getting things across and making them stick in my mind than more modern material. A couple other examples. 1. A 1959 film from Bell Labs on wave behavior that made standing wave, reflections, energy loss due to impedance mismatch, and impedance matching much clearer than anything else I've seen: [1]. 2. A 1937 explanation of how the differential in a car works: [2]. Here is another upload of that which is lower resolution, but has more from the same source in the sidebar [3]. I suppose it could be something akin to survivorship bias that makes old educational films seem so good--the bad ones don't get remembered 60 years later. [1] ▶ this video [2] link [3] link

I'm even jealous of the engineering students that came before me! :P Visualization is such a powerful tool. I didn't really understand waves until I saw "Similarities of Wave Behaviour" ▶ this video

For transmission lines: _Similarities of Wave Behavior_, presented by Dr. J. N. Shier (of Bell Labs fame, and whose team invented the phototransistor): ▶ this video It's an easy thing to watch at any level, with both brilliant practical demonstrations and supporting math provided.

In RF electronics, wires end up looking like transmission lines. Here’s one of the classic lectures on wave propagation and reflections, where it looks at similarities in wave behaviour across mechanical, electrical, acoustic and optical systems. AT&T Similarities of Wave Behaviour (1959): ▶ this video

This video from Bell Labs showing various behaviors of waves using a nifty mechanical wave machine to make everything visible might be enlightening. The whole thing is useful, but those who are just interested in impedance and reflections can skip to chapters 4 and 5. ▶ this video

There's no all in one stop for understanding radio but these 5 resources helped me a lot. The RF Get Down courses. This is by far the best material online to learn RF and how modulation works: link 3blue1brown's video tutorial on the fourier transform: link AT&T Archives: Similiarities of Wave Behavior ▶ this video Quadrature Signals: Complex, But Not Complicated by Richard Lyons, link link Antenna Theory's website and forums, link I also highly recommend getting a $20 rtl-sdr USB software defined radio dongle. They're great toys for learning RF, what modulation is , and exploring the spectrum.