this post was submitted on 15 Sep 2023
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[–] [email protected] 73 points 1 year ago (5 children)

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.

[–] [email protected] 76 points 1 year ago (1 children)

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

[–] [email protected] 8 points 1 year ago (2 children)

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

[–] [email protected] 4 points 1 year ago

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

[–] [email protected] 11 points 1 year ago (3 children)

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.

[–] [email protected] 10 points 1 year ago (1 children)

most of that is what she said

[–] [email protected] 3 points 1 year ago (1 children)
[–] [email protected] 4 points 1 year ago (1 children)
[–] [email protected] 3 points 1 year ago
[–] [email protected] 4 points 1 year ago

But you can feel that the texture is somehow different.

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

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.

[–] [email protected] 10 points 1 year ago* (last edited 1 year ago) (1 children)

that website fuckin sucks

but yes very cool

[–] [email protected] 4 points 1 year ago (1 children)
[–] [email protected] 8 points 1 year ago

when you try to back into the previous tab it redirects to the websites main page, which is also filled with clickbait ads and garbage

[–] [email protected] 6 points 1 year ago

Yes, right, but not on a screen.

[–] [email protected] 4 points 1 year ago

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