3 ms·

I was looking at brain wave (EEG) sensors on AliExpress recently. But I couldn’t tell if spending hundreds plus euros on those sensors would be worth it or not.

I was looking at brain wave (EEG) sensors on AliExpress recently. But I couldn’t tell if spending hundreds plus euros on those sensors would be worth it or not.. so for now I did not order any of them Also I am a little bit afraid that some of those EEG devices on AliExpress could accidentally fry my brain so there’s that as well..

mcshicks 4y ago
You might consider trying a muse 2. I bought one used on eBay for $125. There is a very good app mind monitor you can see what's going on quickly and get captures and python options like muse-lsl for doing your own capture and analysis.
danielheath 4y ago
Inducing enough magnetic flux to create dangerous eddy currents in the brain is not a problem you can get without a custom power plant and extensive cooling for the superconductors (and even then). You need a field strength around 15 teslas.
- skeaker 4y ago
  HN never fails to surprise me with comments like these that can dole out exact numbers for very niche and specific hypotheticals. How on earth do you know all of that?
  - mkaic 4y ago
    Isn't it obvious? They're the Brain Frier! Not the most... refined supervillain name, I'll admit. But menacing nonetheless.
  - ccooffee 4y ago
    I'm not the person you're responding to, but my "strong magnets aren't lethal to people" knowledge is based (in part) on a Veritasium YouTube video[0] where they visit the "World's Strongest Magnet" and do shenanigans. [0] https://www.youtube.com/watch?v=g0amdIcZt5I https://www.youtube.com/watch?v=g0amdIcZt5I