I have a new post on Hackaday: The World’s Longest Range LED Flashlight.
Author Archives: Jay Jay
Today at Humble Bundle
My friend asked me what I got at Humble Bundle today:
- Humble Tech Book Bundle: AI Trust, Risk, and Security by Pearson
- Humble Tech Book Bundle: JavaScript, Scripting, and Web Development by Pragmatic
- Humble Tech Book Bundle: C# and .NET Mega Bundle by Packt
- Humble Tech Book Bundle: Data Visualization by O'Reilly
- Humble Book Bundle: Math and Physics for Dummies ENCORE
- Humble Tech Book Bundle: DevOps 2025 by O'Reilly
Understanding Linear Regression
I enjoyed this article linked by Al Williams over on Hackaday: Understanding Linear Regression.
The Dirac Equation: The Most Important Equation You’ve Never Heard Of
It is my ambition, one day, to understand all the math in this: The Dirac Equation: The Most Important Equation You’ve Never Heard Of.
Learning the Art of Electronics
Web Dashboard And OTA Updates For The ESP32
I have a new post on Hackaday: Web Dashboard And OTA Updates For The ESP32.
Superconductivity News: What Makes Floquet Majorana Fermions Special For Quantum Computing?
I have a new post on Hackaday: Superconductivity News: What Makes Floquet Majorana Fermions Special For Quantum Computing?
Consumer Rights Wiki
Today Louis Rossmann announced his Consumer Rights Wiki over here: US Senator wakes up to the fact that we don’t own things anymore, writes letter to the FTC about it. I wish him every success with this project!
Elle Cordova: Grammarian vs Errorist II
Oh man, Elle Cordova is so insanely creative. It’s gonna be a long time before the AI puts her out of work! This recent one was brilliant: Grammarian vs Errorist II (it’s part II in Grammarian vs Errorist series). Here’s my favorite so far: Virtual Assistants.
RIP Rick Morris
I just received some sad news from my friend Shahriar: our old school teacher Rick Morris has passed away.
The funeral is 2pm in Leura today, 7th May.
Mr Morris was perhaps the most central figure in putting me on the path to computer programming. He used to run the computer lab at our high school and he was our computers teacher in junior high. I had him as my advanced mathematics teacher too.
You know how in Excel if you want a relative reference you use something like ‘B8’ and if you want an absolute reference you use the dollar sign as e.g. ‘$B$8’. Well it was Mr Morris who taught me that, some time back in the early 90s. I’ve been using that syntax my whole life, and every time I do I think of Mr Morris.
It wasn’t so long ago that Shahriar and I caught up with Mr Morris for drinks at the Lappo. Of course we didn’t know at the time that would be the last time we’d ever see him. At least we did have that time together before we lost him.
I will miss his quiet intelligence and his big laugh.
p.s. I just got back from the funeral. Apparently he died suddenly from a stroke on 24th April. It was a beautiful ceremony. 50/50 laughing and crying. They had speeches, poems, photos, and music. They even played the Star Wars anthem! I was confused and accidentally went up with the family when it was time for family members to come to the front and pay their respects. Whoops! I think Mr Morris would have laughed.





