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Cake day: March 31st, 2025

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  • fullsquare@awful.systemstoMicroblog Memes@lemmy.world•A spectacle for fools
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    5 hours ago

    TVs made to soviet design famously caught fire, this was before this all printed circuit board deal was perfected. they just used cardboard-like material for that, it was flammable, absorbed water over time, and there were too closely spaced traces with high voltage on them

    People just don’t remember shit that broke down quickly
















  • DCM is also about the only good solvent left that is also resistant to lewis acids. I think that some people were pushing for benzotrifluoride as a replacement, but it just straight up doesn’t work as well where i tried it

    Tbf before “do it in DCM” was “do it in CCL4” or “do it in benzene”, DCM just works without nuking operator’s liver

    Lots of these new green solvents are also annoyingly polar so perhaps they can be used as replacements of other polar solvents but not anything else. I’m not using cyrene, fuck that

    TFA is used because it works and is shelf-stable. Replacements like HCl in ether or ethyl acetate are bitch to make and when these can be bought, they have to be refrigerated all the way. Straight up not worth the effort on small scale