exr0n

7 ms·

1.
by exr0n 10mo ago
Lev also found vestibular! Email or dm him on twitter :)
2.
by exr0n 10mo ago
This is the coolest part! Turns out, the powers you need are actually lower than what is used for imaging babies :) We measured our probe with a hydrophone on a computer-controlled scanner to get the pressure field, and made sure that i
3.
by exr0n 10mo ago
<3 email me or dm us on twitter! links on the post.
4.
by exr0n 10mo ago
A scary concept... I think the hardest part would be coupling the ultrasound through the air. But there are probably solutions..
5.
by exr0n 10mo ago
Great idea for a control! Will have to try it if we set this up again..
6.
by exr0n 10mo ago
Ha, nope. We needed something to stabilize the probe and the plastic knife from lunch was within reach :)
7.
by exr0n 10mo ago
Totally! We think this is because the brain is hard-wired evolutionarily to interpret smells by danger level first. So maybe there's just more "bad smell" receptors, or maybe the brain treats unknown smells as "uh oh, da
8.
by exr0n 10mo ago
Haha, luckily not! It's a very speculative link, so we didn't want to talk about "AI" too much in the main post. But we originally got interested in this concept because we are interested in other forms of input to the b
9.
by exr0n 10mo ago
Totally agree with both points! I would love to see what happens with more fine-grained control of the ultrasound.
10.
by exr0n 10mo ago
Woah, that would be wild! It seems like most neonatal ultrasound reaches peak internal pressures of few-hundred kPa to 2 MPa. We ranged from 150-250 kPa. So, a little lower than the lower end of prenatal diagnostic imaging. So, the pressure
11.
by exr0n 10mo ago
Sorry it's unclear in the post, they weren't exactly the same! The numbers reported were on Lev, and we swept them around that range for me (Albert). But we didn't take down the exact values, so unfortunately I don't kno
12.
by exr0n 10mo ago
Woah I didn't know about that theory, that's really interesting! If I understand correctly, it's that the ligand needs to both fit "physically" and also have the right vibrational mode to have high binding affinity
13.
by exr0n 10mo ago
Certainly! We didn't get a chance to test it on more people before we had to take it apart, but we thought the result was too cool to share. Would love to see other folks run with the idea!
14.
by exr0n 10mo ago
Super interesting! That would make sense, because a lot of the nose is presumably dedicated to smelling evolutionarily-relevant smells, most of which are "smells bad, avoid this". The method is very crude right now, but maybe with
15.
by exr0n 10mo ago
That's a really interesting concept! The wiki page right now ends in "example of a combination of smells that neutralise each other", which makes me wonder if the "olfactory white" combinations are actually tuned to
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by exr0n 10mo ago
Wow good to know, thank you guys!
17.
We Induced Smells With Ultrasound(writetobrain.com)
676 points by exr0n 10mo ago|184 comments
18.
US Government Uptime Monitor(usa-status.com)
222 points by exr0n 11mo ago|75 comments