• dQw4w9WgXcQ@lemm.ee
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    2 months ago

    I’m Norwegian. I never learned a rule in my language and always just went by instinct. Until ~3rd year of university in physics where someone told me tha the right-hand-rule applies to screws. Now I use that everywhere for screws in strange positions.

      • dQw4w9WgXcQ@lemm.ee
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        2 months ago

        Grab around a screw with your right hand and extend your thumb (like a thumbs up). Then rotating the screw in the direction which your fingers are pointing will result in the screw moving in the direction your thumb is pointing.

        Thumbs up for lifting the screw upwards, thumbs down for screwing the screw downwards. And you can move your hand around to figure out screwing directions for any tricky spots.

    • kamen@lemmy.world
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      2 months ago

      I’ve heard the right hand rule regarding magnetism and current direction (because it’s useful to illustrate correlation between vectors), but never about screws. Now that I think of it, it makes perfect sense there too, only that you have to imagine a thumb pointing down most of the time…