alt Hacker NewsNah, this only works if you’re willing to leave the ice pick there, because the ice pick will have a wildly different speed of sound than the bone or brain, and it will scatter the ultrasound strongly as a result.
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sfink • 11/07/2024
Yeah, that's fair. I guess you have to make the ice pick out of tofu.
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What if it's a really skinny ice pick?
Apparently if you're really good, you can actually find the part of the brain that has to do with addiction and zap it.
They use ultrasound after getting it to work with a metal probe.
https://youtu.be/7BGtVJ3lBdE?t=837