• secret300@lemmy.sdf.org
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        6 months ago

        Why does this frighten me to the core. A donut is a tube, it makes sense but I hate this knowledge

        • lud@lemm.ee
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          6 months ago

          Depends on how you see it, a hole or a tube. I prefer a hole.

          A common joke is that a topologist can’t see the difference between a donut and a coffee mug because you can mould a mug into a donut (assuming it has a handle).