Comment on The cylinder must remain unharmed

• edinbruh@feddit.it ⁨2⁩ ⁨months⁩ ago

  The cavity is not a cavity, because there’s the walls of the second hole passing through it

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  • WraithGear@lemmy.world ⁨2⁩ ⁨months⁩ ago

    by jove! i think you are right!

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