RealNooshieJul 4, 2023

Can we settle this: how many holes does a straw have?

https://lemmy.world/post/1031988

Can we settle this: how many holes does a straw have? - Lemmy.world

At work we somehow landed on the topic of how many holes a human has, which then evolved into a heated discussion on the classic question of how many holes does a straw have. I think itโ€™s two, but some people are convinced that itโ€™s one, which I just donโ€™t understand. What are your thoughts?

Show threadccunningJul 4, 2023

How many holes does a rubber band have? A donut?

Topologically a rubber band, a donut, and a straw have the same number of holes. The hole at either end of the straw is just a continuation of the same one hole.

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None of them have holes, usually. A hole goes from the outside of a volume to the inside. Those are all intact tori.
Jul 5, 2023 at 5:47amWeb