This on IRC today: The Tyranny of Structurelessness. It’s an essay about human organizations by Jo Freeman from back in the seventies.
The Tyranny of Structurelessness
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Monthly Archives: October 2023
Make: Boards Guide
Today I discovered the Make: Boards Guide. It’s great. It has a comparison feature too, so you can compare board options side-by-side.
In memory of Cam
It’s been 10 years since our mate Cameron died. A few of us caught up at the pub to mark the occasion.
AliExpress sale
There is a sale on at AliExpress today. I picked up the following AU$881.75 worth of stuff for AU$225.03 (inc. tax and shipping).
Network Analysers
I’ve just been checking out the state of the art with regard to network analysers: Network Analysers: 56 Products Found.
Postscript on the Societies of Control
My friend sent me a link to Postscript on the Societies of Control by Gilles Deleuze. I’m not sure if I agree. I might need to read this one again.
The most difficult math problem in this year’s HSC
The “HSC” in Australia is the “High School Certificate” which you get when you graduate high school. In order to do that you have to take the final exam, known as the “HSC exam”, or simply the “HSC”.
When I did the HSC 24 odd years ago the top level maths course (which I took) was called “4 Unit Maths”, whereas these days the top level course is now called “Maths Extension 2”. I expect the difficulty increased over the decades too.
Here’s the hardest question from this year’s Maths Extension 2 HSC paper:
There’s an article about it all in the newspaper today: ‘Not seen a question like it’: The most difficult problem in this year’s HSC.
I don’t remember enough about complex numbers, geometry, and trigonometry to answer this question, it is quite beyond me.
RAACO 137386 STEEL CABINET
Today I discovered these RAACO 137386 storage cabinets. They look pretty good. The component drawers can be partitioned with these.
In The Lab With Jay Jay – October 16, 2023 – Demo of the ALKOY Capacitor Discharge Pen
This post is part of my video blog: In The Lab With Jay Jay.
In this video I demo my new ALKOY Capacitor Discharge Pen.
The bench multimeter I use in this video is my OWON XDM1041 and the bench power supply is my RIDEN RD6006.
The demo circuit used a 1KΩ 1/4W resistor, a 25V 330μF electrolytic capacitor, and an 18V supply.
Prototype Circuit Board
Also variously known as “stripboard” and “veroboard” I got myself some of this TZT 10PCS DIY 2.5×6.4 2.5*6.4CM Prototype Paper PCB Universal Experiment Matrix Circuit Board Single Row Continuous Hole 25x64mm. AU$4.71 for 10 pieces, delivered. The boards are fairly small, 25x64mm.
And also some of this: diymore 5PCS/Lot 50X100mm 2-3-5 Joint Universal PCB Boards Single Side Copper Prototype Print Circuit Boards Breadboard. AU$4.28 for 5 pieces, delivered. These are a little larger at 50x100mm.
I still haven’t found exactly what I’m looking for when it comes to stripboard, gonna keep my eye peeled. This is what I have so far:
