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Efficency
Submitted 1 year ago by fossilesque@mander.xyz to science_memes@mander.xyz
https://mander.xyz/pictrs/image/891d05b2-5dfe-4cb3-80a1-a8682f1e2b45.jpeg
Comments
jordanlund@lemmy.world 1 year ago
lemmyng@lemmy.ca 1 year ago
Zagorath@aussie.zone 1 year ago
This is about the most efficient way to pack that number of circles. By looking at the bottom row of the 49, you can see that it’s slightly less wide than 7 diameters, because it has 5 circles at the very bottom (taking up 5 diameters of width), but two are slightly raised, which also means they’re slightly inward.
hsdkfr734r@feddit.nl 1 year ago
How?
magic_lobster_party@kbin.run 1 year ago
7 by 7 matrix isn’t the optimal packing. The square shown is slightly smaller than 7 by 7.
hsdkfr734r@feddit.nl 1 year ago
Ah. I thought it was about counting. It all makes a lot more sense now. (And it also doesn’t.)
mexicancartel@lemmy.dbzer0.com 1 year ago
Yeah it can fit almost 7 in a line in the last panel so theese definitely aren’t the same squares
apotheotic@beehaw.org 1 year ago
These are optimal packings of n circles in a square shaped container
datelmd5sum@lemmy.world 1 year ago
I mean it makes sense when you think about how the spheres arrange in an infinte square and e.g. 4r square. There has to be some fuckery between the perfect packing and the small square packing. You can see a triangle of perfect packing in the middle of the 49 sphere square, surrounded by garbage.
Maggoty@lemmy.world 1 year ago
Or, they could do 6x8 with one obviously extra at the end. But this is a funny not a rational thing.
FiniteBanjo@lemmy.today 1 year ago
Yarr
Neat spacing leave much gap, patterned mess less space between.
intensely_human@lemm.ee 1 year ago
Well-put. One perfect pattern at one scale, another perfect pattern at a different scale, and then there has to be a transition between them of optimal steps along the way. I like that.
helpImTrappedOnline@lemmy.world 1 year ago
Should have used hexagons
nephs@lemmygrad.ml 1 year ago
The bestagons.
intensely_human@lemm.ee 1 year ago
That’s what she said 😏
sabreW4K3@lazysoci.al 1 year ago
Maths is a science now?
Tolookah@discuss.tchncs.de 1 year ago
Science is applied math, engineering is applied science, manufacturing is applied engineering, etc. it’s math all the way down.
zarlin@lemmy.world 1 year ago
Relevant XKCD: xkcd.com/435/
fossilesque@mander.xyz 1 year ago
ogeist@lemmy.world 1 year ago
always_has_been.jpg
The_Che_Banana@beehaw.org 1 year ago
Evil_Shrubbery@lemm.ee 1 year ago
smeg@feddit.uk 1 year ago
We’ve got !mathmemes@lemmy.blahaj.zone for maths but it’s a bit quiet compared to here
sabreW4K3@lazysoci.al 1 year ago
Quality over quantity! 😉
JimSamtanko@lemm.ee 1 year ago
I think you forgot the /s
Tlaloc_Temporal@lemmy.ca 1 year ago
The study and discovery of mathematics is, yes.
Bertuccio@lemmy.world 1 year ago
Always has been.
veganpizza69@lemmy.world 1 year ago
This is the kind of stuff the timber mafia needs to know so that they can efficiently pack trees and send them to IKEA.
_different_username@lemmy.world 1 year ago
HCP FTW.
boatswain@infosec.pub 1 year ago
[deleted]Enkers@sh.itjust.works 1 year ago
I think you skipped a row.
Also, 6*6+7=???
boatswain@infosec.pub 1 year ago
I did yeah; deleted my content almost immediately after posting it because I went to double check. Counting is hard!
Zehzin@lemmy.world 1 year ago
You got nothing on the 17 square packing
OrnateLuna@lemmy.blahaj.zone 1 year ago
Can someone explain this?
Enkers@sh.itjust.works 1 year ago
This is the most efficient packing of 17 unit squares inside a square. If you’re asking why it’s like that, that’s above my math proficiency level.
en.wikipedia.org/wiki/Square_packing
Artyom@lemm.ee 1 year ago
We’ve figured out optimal packing methods for any number of squares inside a big square. When a number is below and near a square number like 15, you just leave an empty box, but when it’s far from the next square number, you’ll be able to pack them more efficiently than just leaving empty squares around. Turns out this kind of stuff is hilariously hard to prove that it’s the most efficient method.
nephs@lemmygrad.ml 1 year ago
Mathematics actually hates humanity, and it likes to remind us of it, sometimes. That’s why.
isolatedscotch@discuss.tchncs.de 1 year ago
xkcd.com/2740