Repurposing the cadaver of a spider to create a pneumatically actuated gripper

Re:Repurposing the cadaver of a spider to create a pneumatic... by Jensson on Sunday July 31, 2022 @12:57AM (#32293288)

Propellers don't rely on infrastructure and they are also absent from biology. Biology simply doesn't seem to be able to evolve such a mechanism.

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Re:Repurposing the cadaver of a spider to create a pneumatic... by drewm1980 on Sunday July 31, 2022 @02:03AM (#32293571)

Below a certain size, propellers are less efficient. It's a fluid dynamics thing. I learned about this from a colleague flying robots inspired by insects. If you find an article about bee flight dynamics that's not BS (creationists still sometimes try to use bumblebees as an example of divine magic), it may also explain it. The short version is that with a small propeller all the air around it just starts spinning.

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Re:Repurposing the cadaver of a spider to create a pneumatic... by efitz on Sunday July 31, 2022 @01:25AM (#32293413)

Biological propellers: https://www.valhallahelicopters.com/wp-content/uploads/2019/...

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Re:Repurposing the cadaver of a spider to create a pneumatic... by goldenkey on Sunday July 31, 2022 @05:42AM (#32294446)

There are quite a few flagella-like locomotive organelles/glyco-proteins that twist in a corkscrew repeatedly.

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Re:Repurposing the cadaver of a spider to create a pneumatic... by freemint on Sunday July 31, 2022 @04:00AM (#32294078)

Propeller in biology https://en.wikipedia.org/wiki/Flagellum

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