48

not sure why i found this fascinating. i was working a geospatial mapping project and stumbled on this tangent

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[-] LazerDickMcCheese@sh.itjust.works 35 points 2 months ago
[-] RootBeerGuy@discuss.tchncs.de 11 points 2 months ago

The Pentagon would like to know your location.

[-] 5ibelius9insterberg@feddit.org 10 points 2 months ago

Go away Pentagon! Why is the Pentagon afraid of the Heptagon? Because the Heptagon octagoned the Nonagon.

[-] Ferris@infosec.pub 2 points 2 months ago
[-] 5ibelius9insterberg@feddit.org 2 points 2 months ago* (last edited 2 months ago)

You mean, because he is the

badumm ts

OCTAGONIST ???

[-] CM400@lemmy.world 10 points 2 months ago
[-] GardenVarietyAnxiety@lemmy.world 10 points 2 months ago

I love that I can count on this being commented whenever hexagons are mentioned 💕

[-] Beryl@jlai.lu 21 points 2 months ago* (last edited 2 months ago)

This paper says nothing about the "brain's navigation system". It is focused on the distribution of cone photoreceptors in the retina, and more precisely in the fovea.

1000017592

They are indeed organized in a hexagonal mosaic as you can see in the picture, and the authors present a new method to estimate spatial distribution of said cones, showing that there are anisotropies, with the cones having a larger local spacing along the horizontal axis.

The fovea (A) is the central-ish region of the retina, and it is packed with cones, which are specialized in color recognition. As you move to the periphery of the retina (B), another type of receptor becomes dominant : the rods. They are a lot better at sensing light but can't tell which color it is. That's why our peripheral vision is mostly shades of gray, even if your brain tries to convince you otherwise by adding the colors from context.

Anyway, not saying this isn't an interesting topic, but it's not the best source to illustrate it.

[-] originalucifer@moist.catsweat.com 3 points 2 months ago

there was a second reference link for navigation piece:

https://ieeexplore.ieee.org/document/1598543

i took both links from this paper

https://richard.science/sci/2019_barnes_dgg_published.pdf

[-] SpaceNoodle@lemmy.world 11 points 2 months ago

Find a more efficient packing pattern.

this post was submitted on 17 Aug 2024
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