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peterus 15 hours ago [-]
He also made circuitjs, a very useful circuit simulator which I regularly use for prototyping. It lets you modify and probe elements in real time unlike spice simulators, so it is faster to modify a design in it.
I use spice simulators to check the final design since sometimes circuitjs can have instability issues in complex circuits involving stuff like the nonideal op amp.
He also wrote zsh ( https://en.wikipedia.org/wiki/Z_shell ) as a sophomore in 1990, moved onto other things a few years later, and a couple decades later in 2019 it became the MacOS's default shell.
ipdashc 5 hours ago [-]
That's wild. I knew he was the circuitjs guy which is impressive on its own, and vaguely knew of the other simulations as well, but writing zsh as an undergrad... Wow
quaintdev 13 hours ago [-]
I remeber using this when it was Java applet. Now he has converted everything to JavaScript for everyone to use. What a legend!
stared 10 hours ago [-]
This is pure gold, especially the rippld tank, 1d quantum mechanics, and the circuit simulator.
Does anyone know what are Paul Falstad’s project right now?
(I haven’t seen any new. Not sure if perfect things do not need fixes, or some switch to another field, or a burnout, or he has ascended to godhood - out of a few options.)
sprinkly-dust 12 hours ago [-]
I have fond memories of fiddling with the wave simulations on this website during high school!
I use spice simulators to check the final design since sometimes circuitjs can have instability issues in complex circuits involving stuff like the nonideal op amp.
https://www.falstad.com/circuit/circuitjs.html
I cited it as one of the remarkable steps in the history of educational simulations, https://doi.org/10.1117/1.OE.61.8.081809, figure 2 (a broader overview in https://p.migdal.pl/blog/2024/05/science-games-explorable-ex...)
You can fix the ends of the string by pressing space. When both ends are fixed, you can you can drag the beads and release them.
No big deal, but hey I was quite happy with myself back then..
[1] https://www.newgrounds.com/portal/view/267616
[2] https://ruffle.rs/
>You ever play SodaPlay?
Never heard until now. Looks interesting. Thanks for sharing, but is it available now?
https://www.falstad.com/rendezvous/
(I haven’t seen any new. Not sure if perfect things do not need fixes, or some switch to another field, or a burnout, or he has ascended to godhood - out of a few options.)