This is great: https://www.youtube.com/shorts/k4gDVlCsMzg
Category Archives: Science
Maxwell’s equations
An interesting video from Ali the Dazzling: You don’t understand Maxwell’s equations.
Carl Sagan testifying before Congress in 1985 on climate change
Most Important Skills for Electrical Engineering
Today I watched Most Important Skills for Electrical Engineering.
Stuff I need to learn includes:
He listed some important soft skills which included:
- Critical thinking
- Problem solving
- Communication
- Opportunity detection
- Tenacity/high-pain-tolerance
Old Book Teardown #8: Radio Engineering 3rd Edition (1947) | In The Lab With Jay Jay
This post is part of my video blog and you can find more information about this video on this show’s homepage.
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Silly Job Title: Amp Alchemist
Note: this video is nearly five hours long! If you’re interested but don’t have 5 spare hours (and who does??) you might like to listen at 2x speed or more. The standard YouTube interface only supports playback up to 2x speed but I have some notes about YouTube hacks you can use to set the playback at 3x speed… or more!
In this video I teardown “Radio Engineering” (3rd edition) by Frederick Terman published 1947.
Frederick Terman was a Doctor of Science which is what the Sc.D. after his name stands for. It’s like a Ph.D. He is remembered as a father of Silicon Valley.
In the book there is much talk of diodes, but of course that is in reference to the old thermionic diodes which were vacuum tubes. These days diodes are semiconductors made from something like silicon or germanium.
The book talks a lot about power amplifier classes. Today the same classes are still used, it’s just that anything other than class AB and class D are very uncommon.
Thanks very much for watching! And please remember to hit like and subscribe! :)
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Scotch Titanium Scissorsnotes |
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Homework
This is a part of the homework feature of my blog, which is an ongoing conversation with my mate S.F.
Hey mate. Lovely to see you again, as always.
I ended up getting these cards printed at clickmedia.com.au to take with me on Wednesday to ElectroneX:
I mentioned Iain McGilchrist, he’s a psychiatrist who dabbles in philosophy. I think he has a really excellent and interesting view of things. It’s hard to summarise his position but he is very interested in the difference in perceptive capabilities of the left and right hemispheres of the brain. He has a YouTube channel over here: @DrIainMcGilchrist and if you search for him you will find many a fascinating interview.
You told me to check out Succession (TV series).
I found the Four Corners video you mentioned, over here: Self-defence or genocide? Asking Israel’s powerful voices about Gaza | Four Corners.
I mentioned Eben Moglen, who has a website over here: moglen.law.columbia.edu. I find Eben inspirational. He’s always talking in grandiose eloquence about the importance of free software, if you search for him on YouTube you are bound to find something of interest.
I mentioned Annie Jacobsen, she’s a pretty interesting cat. She has written a number of books on conspiracy-theory-like topics. I recently read her book Nuclear War: A Scenario.
I have a note here that says “positive view on nihilism” but I forget what that was about. Something I wanted to tell you, now lost to time. But searching for ‘positive view on nihilism’ turns up a bunch of interesting results! (Oh. Wait. Found it! It’s a video I wanted you to see: Optimistic Nihilism.)
Oh, another note I don’t remember: “void of ‘huh'”. I assume we were being hilarious.
There is an urban myth that the first human projectile that made it into space was a manhole cover from nuclear testing facilities for Operation Plumbbob in 1957. I dunno if it’s true, but it’s a good story!
New Book Teardown #3: Learning The Art of Electronics: A Hands-On Lab Course (2016) | In The Lab
This post is part of my video blog and you can find more information about this video on this show’s homepage which is here.
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Silly Job Title: Master Planner
This video is part of the New Book Teardown feature of my video blog.
In this video I take a look at Learning the Art of Electronics: A Hands-On Lab Course by Thomas C. Hayes and Paul Horowitz published in 2016. The book has 1,140 pages and is a companion to The Art of Electronics 3rd Edition.
Some notes about things of interest we noticed in the book:
- Xilinx was an American technology and semiconductor company, now owned by AMD
- the Ebers–Moll model is useful for modelling Bipolar junction transistors
- Hysteresis is the dependence of the state of a system on its history
- Wien’s bridge is used for precision measurement of capacitance in terms of resistance and frequency
- Wilson current mirror is a three-terminal circuit that accepts an input current at the input terminal and provides a “mirrored” current source or sink output at the output terminal
- a Bessel filter is a type of analog linear filter named in reference to Friedrich Bessel who developed the mathematical theory
- the video about the 6502 I watched recently is: The 6502 CPU Powered a Whole Generation!
- the Cypress PSoC is a family of microcontroller integrated circuits by Cypress Semiconductor
- octopart.com
- learningtheartofelectronics.com
Thanks very much for watching! And please remember to hit like and subscribe!
Following is a product I use picked at random from my collection which may appear in my videos. Clicking through on this to find and click on the green affiliate links before purchasing from eBay or AliExpress is a great way to support the channel at no cost to you. Thanks!
Yum Cha Blue Spudgers |
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The Brain User’s Handbook: A Neuroscience-inspired Guide to Peace of Mind
I am reading The Brain User’s Handbook: A Neuroscience-inspired Guide to Peace of Mind which has this awesome image I want to share:
Propagation of electricity
Thanks to Craig for referring me to Brian Haidet’s AlphaPhoenix channel.
I found the following four videos on the AlphaPhoenix channel explaining various aspects of the propagation of electricity, which goes some way to explaining how the high impedance headphone might work in my 10in1 2/10 project.
- Watch electricity hit a fork in the road at half a billion frames per second
- Why does WATER change the speed of electricity?
- How does electricity find the “Path of Least Resistance”?
- An intuitive approach for understanding electricity
While watching the videos I discovered that Brian’s oscilloscope is a Siglent SDS1104X-E (100 MHz) Oscilloscope, a pretty nice looking bit of kit!
Final round of Silicon Chip books
My good friend Dubz shouted me another round of Silicon Chip books as can be seen here. I now own all the books which have been marked and I’ve pretty much purchased everything that was left.