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Cake day: July 17th, 2023

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  • Omgpwnies@lemmy.worldtoLemmy Shitpost@lemmy.worldCords
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    20 days ago

    In household wiring polarity does matter, especially if you are assembling plugs. Only one of the three wires is carrying live current (hot), the other two are the neutral return path, and ground which is for safety. If you accidentally switch polarity, you can cross hot to neutral and cause a short circuit.



  • Psychos aren’t the ‘scream in your face and belittle you’ type of people, it’s the silver-tongued devils that talk about family values and the environment and how their thing helps people, all while making backroom deals and lobbying governments to pass laws in their favour or any other number of shit. Psychos will appear on the surface as the nicest goddamn person you ever met, and you won’t think otherwise until you find the knife in your back.





  • The “intuitiveness” of imperial measurements is that they’re sorta human-scaled, at least for human-sized measurements. An inch is about the same length as the tip of my thumb, a foot is about as big as my foot, a yard is a single pace if I stretch a bit, etc. which makes it easier for a person to picture it.

    Once you get out of that scale it really starts to break down though.


  • The really neat thing about those changes to the meter is that it didn’t really change how long a meter was (-ish), it changed the precision of that definition, as well as the ability to reproduce an exact meter, reducing the need for a specific piece of material to define the meter (which changes length based on environment). Now, an exact standard meter can be reproduced independently in any lab with the proper equipment.