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Cake day: June 7th, 2023

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  • Coal plant burns coal to heat water, makes steam, and the steam powers a turbine to produce electricity. A nuclear power plant uses nuclear fuel to heat water and produce steam similar to a coal plant. It may do this indirectly (e.g. second loop between the nuclear fuel and water loop to prevent the water becoming radioactive). This means that to build a nuclear plant you essentially need to build a coal plant, and then also the nuclear reactor and safety stuff, which makes them more expensive. Since coal plants are being turned off anyways, it might be more cost effective to just retrofit old coal plants so the only cost is the nuclear reactor side of things (plus any necessary maintenance and upgrades)


  • Also if you want a domain but dont care about the actual address, a .xyz domain composed entirely of numbers with less than 10 digits is $1-2 + same as renewal fee per year. $1.22 for me on porkbun

    Just be sure to redact the whois information bc you will get a call from scammers trying to get you to register your domain on some “internet map” for a small fee acting as if its some step in your setup process you havent done yet




  • Paint used for the images on the side of the glass had heavy metals (e.g. cadmium). As the paint flaked it became possible to ingest it. A mom who for some reason had an XRF gun (x-ray fluorescence, allows identifying element makeup of things. Useful for identifying material or ore content) and saw a ton of cadmium then went and reported it




  • I got a cheap pair of the orangest non-prescription glasses I could find that weren’t straight sunglasses and it took me from crushing headaches when I get home from work to mild discomfort by the end of the day. The only problem is they can make color perception a bit difficult (greens/blues, yellows/whites), but it’s workable for the most part. My eyes adjusted and I can still tell apart most things and anything that I can’t, I can take a quick glance w/o them. One thing to keep in mind though: they reflect blue light so you might want ones with blinders / wear normal sunglasses if you’re outside, since having the sun behind you can reflect it right into your eyes. They look a bit goofy but I’d take looking goofy over physical pain

    There are also orange clip ons that can go on existing glasses. If they have this kind of coating for prescription lenses though, I’d definitely get them

    Also cuts blinding blue headlights from incoming traffic




  • I felt the same the first time I tried but it honestly takes a few tries to start getting it right. The kind of iron and solder matter a lot; the older ceramic core ones suck and the JBC/pinecil type are much superior. Part of the problem with the ceramic type ones is they have one setting - full blast - and not good temperature control. With a pinecil/JBC you can set the temperature to 300C and expect to get 300C. Too hot and it will boil off the flux before you’re done soldering and you just get crud.

    In terms of solder, leaded rosin core solder is the best. Don’t worry about the lead, as long as you wash your hands. Use a brass sponge type thing to clean the tip frequently to remove crud

    For through holes, I’d say get some veroboard off eBay and a bunch of cheap resistors and just start plugging away until you get better. Process is basically - have tip with a bit of solder, poke to pad and pin, put solder into joint and hold 1-3 seconds until solder flows onto pad and pin, remove tip. Putting some flux on in advance helps remove the oxides before soldering

    For surface mount (side pads/pins), there are kits with cheap/obsolete/trash components you can just plug away at without fear of messing anything up. Soldering smt is a bit annoying but doable by hand without much training. the process is basically: tin one pad, use tweezers to place part and reheat the solder until the part is in place, solder the rest of the pads, reheat first pad to relieve stress.

    Even for large parts, I used to have trouble with unsteady hands. If you are doing smt you really need a microscope or magnifying glass for anything smaller than 0805 - really helps with the visual feedback loop for hand positioning. A microscope significantly improved my dexterity and hand steadiness


  • What kind of emails are you sending to what kind of people, and how frequently that AI increases your productivity? I don’t think I ever have emails that AI could do better or faster, since it’d probably take longer to explain to the AI what I need it to write than to type it out myself. Then again I’m in an engineering setting and it’s pretty much just numbers, confirmations, basic requests, and issue descriptions, IT tickets, mostly