I didn’t read this whole thing closely, but oh my: Cognition. It’s a weird programming language.
Category Archives: Web
The Decline of Hobby Electronics?
An interesting video published eight years ago about the changing landscape of hobby electronics in Australia.
New Book Teardown #4: Beginner’s Guide to Reading Schematics 4th Edition (2018) | In The Lab
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Silly Job Title: Electron Enchanter
This video is part of the New Book Teardown feature of my video blog.
In this video I take a look at Beginner’s Guide to Reading Schematics, Fourth Edition by Stan Gibilisco published in 2018. The book has 209 pages.
Some things which came up during the video:
From the Wikipedia article on Bifilar coil: A bifilar coil is an electromagnetic coil that contains two closely spaced, parallel windings. In electrical engineering, the word bifilar describes wire which is made of two filaments or strands. It is commonly used to denote special types of winding wire for transformers. Wire can be purchased in bifilar form, usually as different colored enameled wire bonded together. For three strands, the term trifilar coil is used.
From the Wikipedia article on Power dividers and directional couplers: Power dividers (also power splitters and, when used in reverse, power combiners) and directional couplers are passive devices used mostly in the field of radio technology. They couple a defined amount of the electromagnetic power in a transmission line to a port enabling the signal to be used in another circuit. An essential feature of directional couplers is that they only couple power flowing in one direction. Power entering the output port is coupled to the isolated port but not to the coupled port. A directional coupler designed to split power equally between two ports is called a hybrid coupler.
From the Wikipedia article on Waveguide: A waveguide is a structure that guides waves by restricting the transmission of energy to one direction. Common types of waveguides include acoustic waveguides which direct sound, optical waveguides which direct light, and radio-frequency waveguides which direct electromagnetic waves other than light like radio waves.
The list of parts suppliers from the back of the book (some have closed down):
- All-Electronics
- Design Notes
- Electronix Express
- Jemeco Electronics
- Mouser Electronics
- Radio Shack
- Ramsey Electronics
The books from the suggested additional reading:
- Electronics Explained: Fundamentals for Engineers, Technicians, and Makers
- Electricity & Electronics
- Electricity Demystified
- Electronics Demystified
- Ham and Shortwave Radio for the Electronics Hobbyist
- Teach Yourself Electricity and Electronics
- Complete Electronics Self-Teaching Guide with Projects
- Hacking Electronics: Learning Electronics with Arduino and Raspberry Pi
- Circuit Analysis For Dummies
- Practical Electronics for Inventors
The author’s website is here: https://www.sciencewriter.net/
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Yum Cha Telescopic Magnetic Pickup With Light |
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Uncle Bob is into Clojure
Stop Trying To Understand
Random Internet Video for the day: Stop Trying To Understand. Good work, Internet.
Philosophiæ naturalis principia mathematica
Today I discovered Newton’s own annotated copy of his Philosophiæ naturalis principia mathematica.
Altronics catalog
Today my free copy of the Altronics catalog arrived. This is low-tech, but still the best way to keep up to date with the state of the art: just read the catalog from cover to cover!
Learning Clojure
I thought I might start with some of Paul Graham’s famous papers which aren’t about Clojure per se, but are about Lisp:
- Revenge of the Nerds
- The Roots of Lisp
- What Made Lisp Different
- Fortran
- Carl de Marcken: Inside Orbitz
Also his book On Lisp is of interest and is available free online these days.
And then the Arc language tutorial, which is also not Clojure, but looks like an interesting Lisp.
Then I will read the following books, in this order:
- Programming Clojure
- Getting Clojure: Build Your Functional Skills One Idea at a Time
- Functional Programming Patterns in Scala and Clojure: Write Lean Programs for the JVM
- Clojure for the Brave and True: Learn the Ultimate Language and Become a Better Programmer
This is, of course, a silly amount of reading. Let’s see how I go.
Model Thinking
Today I came across Model Thinking Full Course. It’s 11 hours of lectures about formal models. What they are, how to use them, etc. Kind of interesting but I don’t have that much time to give it.
The jank programming language
Today I learned about the jank programming language. It’s Clojure, but on the metal, not the JVM.