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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







  • jjagaimo@lemmy.catoBikini Bottom Twitter@lemmy.worldsaving me at 2am before a test
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    2 months ago

    The way that America relies on pure memorization for pretty much everything is ridiculous. It gives some people who are good at that an advantage even if they severely lack critical thinking or intelligence while those with poor memory and the neurodivergent suffer. The other thing that annoys me is when people equate good memory to smart and or memory to dumb regardless of the person’s reasoning or decisions and judge based on that

    Also punishes kids for not spending an additional part time job of work after school doing hw and studying when they just went through a whole job with of work at school










  • Solder is a low melting point metal used to join two metals, where the solder fills the gap and bonds to both metals. This is commonly used in electronics to bond components to the board. For a good solder joint, the solder must be brought up to the proper temperature, and the pads on the PCB (metal 1) and leads of the component (metal 2) need to be heated enough. Additionally, flux is added to the solder to remove oxides on the component leads and PCB pads to allow the solder to bond to the metal; oxides can prevent the solder from sticking.

    A cold solder joint is one that does not reach the proper temperature and/or does not have enough flux, leading to the solder not bonding to the joint, having a scaly/bubbly/matte appearance, and a weaker more brittle joint. Flux also doesnt do as good a job at lower temperatures so it’s important for the joint to get hot enough, and to heat the pads/component leads too