• wuphysics87@lemmy.ml
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    9 hours ago

    The Right Hand Rule (RHR). Point the thumb of your right hand in the direction you want something to go. Curl your fingers. That is the direction of rotation. Translate to any language which has hands.

      • isyasad@lemmy.world
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        7 hours ago

        Your thumb is an arrow pointing at where you want the screw to go. After you curl your fingers, your fingers are arrows showing the direction to turn the screw

        • Instigate
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          44 minutes ago

          We were taught a similar trick in physics - point your right-hand thumb in the direction that current (or electrons, same same) is travelling and the curling of your fingers shows the direction of the resultant magnetic field that the current creates.

          • wuphysics87@lemmy.ml
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            34 minutes ago

            I teach physics. A prof of mine taught me the right hand rule applies to right handed bolts. No accident they are named that. I teach this to students now. Maybe 1 in 10 like it. The rest prefer their old rhyme. Oh well. Can’t say I didn’t try

    • Today@lemmy.world
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      7 hours ago

      I know how to turn a wrench. Knowing the direction is the difficult part. Especially on toilets.