this post was submitted on 10 Oct 2024
1202 points (99.4% liked)

Science Memes

11021 readers
3440 users here now

Welcome to c/science_memes @ Mander.xyz!

A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules

  1. Don't throw mud. Behave like an intellectual and remember the human.
  2. Keep it rooted (on topic).
  3. No spam.
  4. Infographics welcome, get schooled.

This is a science community. We use the Dawkins definition of meme.

Research Committee

Other Mander Communities

Science and Research

Biology and Life Sciences

Physical Sciences

Humanities and Social Sciences

Practical and Applied Sciences

Memes

Miscellaneous

founded 2 years ago
MODERATORS
[email protected]
[email protected]
[email protected]
1202
Cheeky (mander.xyz)
submitted 1 month ago by [email protected] to c/[email protected]
226 comments fedilink hide all child comments
 
you are viewing a single comment's thread
view the rest of the comments
[–] over_clox 43 points 1 month ago (2 children)

Its only a valve. Topologically speaking, the passage from the mouth to the anus only constitutes one hole.

The passage of air into the lungs is not a hole however, that is a cavity. Same difference with the vagina, that's not a hole, that's a cavity.

[–] [email protected] 35 points 1 month ago (2 children)

People are donuts!

[–] accideath 24 points 1 month ago (4 children)

No, since you have a nose. Topologically, people have 3 holes.

[–] chuckleslord 18 points 1 month ago (2 children)

7, if the cut-off is 60 microns (tear ducts). Smaller than that, we're essentially Swiss cheese.

[–] accideath 8 points 1 month ago

Tbh, I was kinda hoping for someone with better biology knowledge than me to correct me. Thanks.

[–] [email protected] 3 points 1 month ago (1 children)

What are the the 7?

[–] coffee_whatever 7 points 1 month ago* (last edited 1 month ago)

Important note, if you take a straw that separates into two split straws (kinda in a "Y" shape) that from a topological point of view is two holes, because one is for one of these paths, and the other is an extruded hole on the side of the first path. In topology you can't break or mend material, but you can pull, stretch, squeeze and move it all you want. So you can move one of the split straw "legs" to the bottom of the whole straw, getting a shape similar to a "V", it would look pretty much like a pair of pants. And topologically speaking it would be exactly the same. So... One straight hole for your mouth all the way down to your anus. Another two are there for your nostrils, that's 3 already. The rest are for your tear ducts, which have two holes on the edge of your eye, (so four in total) which merge and then connect to your nose.

So a human, from a topological perspective, is just a seven holed doughnut. Also Vsauce made a great video about that, with pretty great animations.

[–] over_clox 4 points 1 month ago* (last edited 1 month ago) (2 children)

I am well aware that people have three topological holes. Matter of fact, I proved that years ago.

In this case, I only referred to one topological hole, from mouth to anus.

I never mentioned the nose, nor was that part of the topic in question.

[–] [email protected] 2 points 1 month ago (1 children)

Matter of fact, I proved that years ago.

Ominous

[–] over_clox 3 points 1 month ago

This fella explains it way better than I ever could..

https://youtube.com/watch?v=egEraZP9yXQ

[–] [email protected] 2 points 1 month ago (1 children)

why is the nose only one hole?

[–] accideath 6 points 1 month ago (4 children)

Nose is two. Your butt isn’t one. Or rather, your mouth and nostrils would be the entrance and your butt is the combined exit of those three holes. If you don’t count the nostrils, you only have one hole. A hole always goes through something, otherwise it’s just a cavity. And also, holes only count from one side. Your butt and mouth are the same hole, just from different ends.

[–] TexasDrunk 8 points 1 month ago

Kissing with open mouths creates a hole from one butthole to another.

[–] over_clox 2 points 1 month ago (1 children)

Nose is only one hole, topologically speaking. You can run a string from one nostril to the other.

One topological hole.

[–] chuckleslord 5 points 1 month ago (1 children)

No, all 7 holes (nostrils, mouth, tear ducts) have a common cavity, so they're 7 holes not one.

https://youtu.be/egEraZP9yXQ

[–] over_clox -1 points 1 month ago

This is a Wendy's. We only offer nostrils, mouths and anuses here.

[–] over_clox 2 points 1 month ago (1 children)

Nose is only one hole homie, runs from one nostril to the other. It takes the mouth to add a secondary orifilce. And it takes the anus to add a third orifice.

Topology for ya.

[–] accideath 3 points 1 month ago (1 children)

Doesn’t matter which way you turn it, the result is the same. As you count it, your first hole is nostril to nostril. I count mouth to anus as hole one and then add the left and right nostrils as secondary and tertiary orifices. Having a nose ads two holes to the total count. If you had no nose, you‘d have one hole, if you only had a nose, you’d also only have one hole.

[–] over_clox 2 points 1 month ago

That reminds me, I need to turn my pizza soon..

[–] [email protected] 2 points 1 month ago (1 children)

oh! but then why is it three holes and not nostril-to-mouth as a hole and other-nostril-to-butt as another hole, or some other combination

[–] [email protected] 5 points 1 month ago* (last edited 1 month ago) (1 children)

Quick illustration:

Nostrils:
___________
_________  |
_________| |
_________  |
Mouth:   | |
\________| |
 ________  |
/        | |
         | |
         | |
         | |
         | | 
         | |
Butthole:

That is 3 holes in total because you can "connect" any opening with 3 different one's.

[–] [email protected] 3 points 1 month ago

thank you!!

[–] [email protected] 1 points 1 month ago

You don't need that

[–] [email protected] 2 points 1 month ago

Depends on the state of your esophagus, doesn't it? If it's closed (which it mostly is) then your mouth and nose holes go to your lung cavity. Your anus is also part of a cavity that goes through your intestines all the way up your throat and stops at your esophagus.