Or that opamp, the 741?
Related video: stop using the LM741 https://www.youtube.com/watch?v=e67WiJ6IPlQ
Readit Newsgzalo commented on LM8560, the eternal chip from the 1980 years tycospages.com/other-them... · Posted by u/userbinator
gzalo commented on A laser pointer at 2B FPS [video] youtube.com/watch?v=o4TdH... · Posted by u/thunderbong
The triggering scheme is completely brilliant. One of those cases where not knowing too much made it possible, because someone who does analog debug would never do that (because they would have a 50k$ scope!.
Hmm, it's a clever hack, but they would use an oscilloscope with an "External trigger" input, like most of the older Rigols. That would let you use the full sample rate without needing to trigger from CH2
gzalo commented on How a 20 year old bug in GTA San Andreas surfaced in Windows 11 24H2 cookieplmonster.github.io... · Posted by u/yett
IMHO, if something isn’t part of the contract, it should be randomized. Eg if iteration order of maps isn’t guaranteed in your language, then your language should go out of its way to randomize it. Otherwise, you end up with brittle code: code that works fine until it doesn’t.
I agree, this can also detect brittle tests (e.g, test methods/classes that only pass if executed in a particular order). But applying it for all data could be expensive computation-wise
gzalo commented on Oliver Heaviside and the theory of transmission lines (2021) pa3fwm.nl/technotes/tn28-... · Posted by u/xeonmc
Thank you very much for sharing this. I've been trying to form a mental model of why reflection in transmission lines is a thing and never found a theoretical foundation that satisfied me. I've read a number of publications that just state that as fact, without further explanation. I'll spend some time sketching my own graphs and formulas to fully absorb the fine article.
PS: he discusses the impossibility of moving signals faster than light. I'm in fact interested in moving them way slower than they do, since that could make it possible to build very short antennas. I'm surely not the first to think of this. Maybe that's not even possible and that theoretical model could help to demonstrate why (even though it applies to transmission lines while I'm concerned about antennas).
Indeed, if you search for "ceramic antennas" you'll see that they are already being used and smaller than equivalent PCB antennas. They rely on a dielectric material with high e_r, which implies that speed of light is slower there.
Lots of portable devices use them nowadays!
gzalo commented on GitHub projects targeted with malicious commits to frame researcher bleepingcomputer.com/news... · Posted by u/bdstanga
any flash games?
Yes, in the games category you can find some. But for playing the classic fully fledged games I suggest something like https://flashpointarchive.org/ , which is more organized
gzalo commented on Getting my daily news from a dot matrix printer aschmelyun.com/blog/getti... · Posted by u/chrisdemarco
Receipt printers are fun but take care not to buy toxic paper
https://www.consumerreports.org/cro/news/2014/03/the-health-...
I wonder if it's feasible to make diy Thermal paper using lemon juice, like the old "invisible ink experiment"
Needs a sandbox, otherwise blindly executing generated code is not acceptable