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submitted 1 year ago by Stamets@startrek.website to c/memes@lemmy.ml
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[-] MonsiuerPatEBrown@reddthat.com 63 points 1 year ago

haptic doom

The human finger can discriminate between surfaces patterned with ridges as small as 13 nanometers in amplitude and non-patterned surfaces, surface chemistry Professor Mark Rutland said. "This means that, if your finger was the size of the Earth, you could feel the difference between houses [and] cars," Rutland said.

[-] vale@sh.itjust.works 63 points 1 year ago

Jokes on him, I can already tell the difference between a house and a car

[-] Viking_Hippie@lemmy.world 8 points 1 year ago

Houses are the ones with doors and glass on some of the outside, right?

[-] radioactiveradio@lemm.ee 4 points 1 year ago

No, those are cars, you're thinking about the ones with A/C and mirrors.

[-] Wogi@lemmy.world 10 points 1 year ago

In practice I find that anything smaller than .0001 inches can't really be felt, and the difference between .0001 and .0002 is indiscernible.

13 nanometers is closer to .0000005 inches.

Suede: the little wrench goblin that lives inside my precision c clamp.

[-] Flumsy@feddit.de 4 points 1 year ago

But you can feel that the texture is somehow different.

It's not that you can feel individual features, but rather that a repeating pattern of that size can be distinguished from a smoother surface.

[-] objectionist@lemmy.world 8 points 1 year ago* (last edited 1 year ago)

that website fuckin sucks

but yes very cool

[-] crossal@lemmy.world 3 points 1 year ago
[-] Zerush@lemmy.ml 6 points 1 year ago

Yes, right, but not on a screen.

[-] AnUnusualRelic@lemmy.world 4 points 1 year ago

Yet numerous people can't find the clitoris. It's baffling.

this post was submitted on 15 Sep 2023
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