• GraniteM@lemmy.world
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    9 months ago

    What do you do if there’s a prime number of test tubes, like the thirteen in the picture?

    • dingus@lemmy.world
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      9 months ago

      If you don’t want to figure out some awkward balancing techniques, you can just use a balance tube. Fill a tube with water to a similar height of the tube it opposes.