this post was submitted on 23 Dec 2023
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Breadtube if it didn't suck.

Post videos you genuinely enjoy and want to share, duh. Celebrate the diversity of interests shared by chapochatters by posting a deep dive into Venetian kelp farming, I dunno. Also media criticism, bite-sized versions of left-wing theory, all the stuff you expected. But I am curious about that kelp farming thing now that you mentioned it.

Low effort / spam videos might be removed, especially weeb content.

There is a cytube that you can paste videos into and watch with whoever happens to be around. It's open submission unless there's something important to commandeer it with at the time.

A weekly watch party happens every Saturday (Sunday down under), with video nominations Saturday-Monday, voting Monday-Thursday. See the pin for whatever stage it's currently in.

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[โ€“] iie@hexbear.net 13 points 2 years ago* (last edited 2 years ago) (4 children)

Some highlights:

  • bone cells can grow directly on titanium
  • they implant a titanium connector in the bone, extending out and protruding from the stump, which the detachable prosthesis connects to
  • they surgically implant electrodes in the stump rather than on it, right on the nerves inside the muscles
  • for amputations above the elbow, they actually redirect nerves that used to go to the hand to instead go to small existing muscles above the amputation
  • nerve signals are too small for the electrodes, so the electrodes are designed to read the muscle fibers, basically to amplify the signal
  • implantable part has no batteries, powered by patient's body
  • prosthesis has an AI that is trained to interpret the signals
  • brain-controlled prostheses can be used to treat phantom limb pain,
  • phantom limb pain arises because the brain gets confused and thinks the missing limb is frozen or twisted in a bad way
  • the hand has a sense of touch, which is relayed back to the patient via the same nerves that used to receive hand touch signals!
  • ...it costs $10k :/ but I expected worse tbh
[โ€“] drhead@hexbear.net 6 points 2 years ago

$10k sounds a bit too good to be true? Probably not including "installation".

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