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How to add a fourth circle to a Venn Diagram

85% Upvoted
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level 1

The four-ellipse version is rather more elegant.

level 2

Is there something like that for 5?

level 1
24 points · 10 years ago

thats quite the loose defenition of a circle you're using there

level 2
Comment deleted by user10 years ago
level 3

Topologically, you're a circle.

level 4

Topologically, you're a torus.

level 5
6 points · 10 years ago

It depends how you count various holes.

e.g., piercings.

level 6

True, but if we're assuming a baseline (non-modified) human, then you're a torus.

level 7

We have more than one hole through our bodies...

level 8
1 point · 10 years ago · edited 10 years ago

Other than our digestive tract, what hole goes all the way through our body? The rest of them are all dead ends.

EDIT: I forgot the tubes that go from our ears to our throats. I guess with the multiple passages going down to the trachea you might end up with more than one topological hole.

On a gross anatomical level, though, I only see the digestive tract as being worth counting.

level 9
1 point · 10 years ago

I was thinking digestive tract as one hole, and then nostrils as a second.

level 8

You have more than one hole through your body.

No, wait...

level 2
Original Poster3 points · 10 years ago

True... but that's quite the loose usage of grammar and spelling you're using there...

level 3
2 points · 10 years ago


level 1
8 points · 10 years ago
level 2
3 points · 10 years ago

Holy crap there's a seven.

level 3
12 points · 10 years ago

In what sort of crazy ass fucked world would this be the most efficient way of displaying any conceivable set of information?

level 4

Dunno, but I'm sure they've got better drugs than we do...

Ow. That one actually hurt to look at...

level 2

Dunno why I found this pretty amusing.

level 1

Why can't you just add another normal circle? I mean, I see this weird thing, and then there's the four ellipses, but I never understood why you can't just use 4 circles. Arrange them so they are equally far apart, and have their middles overlap, just like the 3 circle version.

level 2
4 points · 10 years ago

Where do opposing circles overlap each other, but not the orthogonal two circles?

level 3
5 points · 10 years ago · edited 10 years ago

Oh, that's correct. That means two possibilities are missed with just normal circles. My bad.

level 3

You get bonus points for accurately describing geometric relationships over a textual conversation.

level 2
3 points · 10 years ago · edited 10 years ago

Because circles have strong magnetic fields. When you put too many of them in one place, they fly apart and break into arcs.


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