& no false starts

«please / please / please»

I wrote a couple of posts about:

going to the MountainBytes demoparty earlier this year

what I find particularly cool/interesting about the art produced in the demoscene, and some observations about how it compares to similar scenes

Shoutout when I sent this on ham radio, some automated receiver bot (in tennessee, 1200 miles away) posted it, and it blew up.

I found out that Bartosz Ciechanowski did an article on airfoils about a year ago. This was one of the topics I tried to explain when I worked at brilliant.org years ago - in a classic hyperfocus moment I pulled down Doug McLean's book Understanding Aerodynamics - Arguing from the Real Physics and taught myself how to use computational fluid dynamics software, and animated a fan in blender and shit, but in the end I found what I wrote for the site very unsatisfying since I didn't have the space to explain it properly. (It didn't land particularly well with the users and the higher ups were not happy with how much time I spent on it, but personally I found it a really fun project...)

Safe to say that what Bartosz is doing here blows my effort out of the water. Dude's written an entire realtime CFD sim that runs in the browser so you can watch the flow field converge, and has the best step by step exposition of the reciprocal relation of pressure and velocity I think I've read. Bartosz always does stuff on this level, his is literally the best physics explaining site I've ever seen and it's not even close, but this is a topic that I've actually tried to get across so I have a particularly acute sense of how bloody difficult it is to write an accessible clear account like the one here.

Adafruit FruitJam is a Mac 384K 🍏💾

The FruitJam board has an RP2350, dual USB ports over PIO, DVI output from HSTX, and the ability to emulate some classic computers. In this demo, we're using it with the Mac 128K-But-With-384K-Instead

It's not quite a 512K or Mac Plus—which had 1 MB of RAM—but it does have the same 68000 core and is running a Mac Plus ROM, so once we get PSRAM going, we could easily expand to much more RAM. Right now, we can run Finder 5.1 and test out the mouse and keyboard, which both work flawlessly. This is super fun—we can't wait to get some of our favorite old games working! FruitJam is still a work in progress; we have to revise the PCB to fix some errors, but you can sign up here to be notified when we get them in stock

I couldn't think of anything to draw for this that wasn't trite or boring. Maybe I will eventually, maybe it's done.