4 ms·
> But I guess it's about why so we associate those with spiky shapes, though surely it's because they represent sharp immediate changes in frequency? Sure, but
by canjobear 8mo ago
> But I guess it's about why so we associate those with spiky shapes, though surely it's because they represent sharp immediate changes in frequency?
Sure, but it's a very abstract connection between objects being sharp in vision and frequencies changing sharply in hearing. There's no guarantee any given organism would make the connection.
- oasisaimlessly 8mo agoI don't think it's abstract at all. Rub something sharp (anything from a stick to a phonograph needle) on an object and you'll directly transcribe its spatial frequency spectrum into an audio frequency spectrum.
- canjobear 8mo agoDo you think it's obvious that a chick would understand that connection?
- bondarchuk 8mo agoIt's not about "understanding" that you or me do when we read a wikipedia article. It's about the mechanisms in the brain that encode things.
- PaulDavisThe1st 8mo ago"Spatial frequency spectrum" typically refers to visual elements of an object, and has nothing particularly to do with its structure. Entirely smooth surfaces banded in different colors have a "spatial frequency". Extremely irregularly surfaces have no effective spatial frequency. Objects on the same scale as, say, a human head, would have to be "rubbed" at ridiculous high rates (and repeatedly) to even get into a "frequency" range that might include pressure variations that would be considered as a "wave". I think you're imagining an entirely too limited set of objects.
- fzeindl 8mo agoIn the book „the design of everyday things“ it is mentioned that „natural mappings“ exist. Moving the knob of a vertical slider to the upper end universally means „brighter“ or „louder“, not „less bright“ or „more silent“.
- 5- 8mo agomaybe the chicks and norman get it, but i'm currently renting an apartment in france that has a bunch of these light switches installed all upside down, with "-" at the top: https://www.legrand.com.gh/en/catalog/products/arteor-push-button-dimmer-universal-2-wire-2-module-white-572239a https://www.legrand.com.gh/en/catalog/products/arteor-push-b...
- IsTom 8mo ago> Moving the knob of a vertical slider to the upper end universally means „brighter“ or „louder“, not „less bright“ or „more silent“. Except for the organ drawbars?
- bondarchuk 8mo agoBut then you are "pulling out the stops"! That sounds louder, doesn't it.
- seba_dos1 8mo agoWhich way would a vertical weight slider go?