What kind of current are you driving those coils with (amps or dozens of amps?). What order of magnitude is the resulting force (a few newtons?)

I’ll gladly read the paper but knowing myself I won’t remember why exactly when a few weeks passed.

No, we didn’t. A few who are not like us did.

  dementia, weight loss, unsteadiness, jerking movements and facial twitches

Pick up (broken) equipment and start disassembling it to figure out how they turn A into B [1]. Go down the rabbit hole of hunting down the service manual of the thing or one of its siblings. Look at how the pcbs follow the same pattern in competing design. Look at how all the yamaha, sony, medion, … amplifier/tuners are made in the same way and learn from it. Notice that one that is costlier and has those few quircks in its design. Notice how different variations of a theme achieve the same result, but died out because the tech doesn’t scale or simply proved to be suboptimal. Try to repair your broken equipment by understanding the path that the signals and power lines follow.

Rinse and repeat a few years and you’ll get a grasp on what the innards of an unknown electronic thing looks like without opening it. Then open it and be amazed that there was a different, cheaper, simpler way to turn A into B.

All along the way you’ll experience that most educational resources aren’t actually that good at explaining, or that they follow a different school of mathematical notation, or that they’re really good at explaining this detail but the rest is missing.

Design your own pcbs. Remember that - like software - hardware design is iterative. Remember that - unlike software - hardware iterations cost money.

Hope this helps.

[1] the ways to turn A into B are rather limited and it relies heavily on electromagnetism and conservation of energy.

  a process that can be used *on site* to render environmental toxins such as DDT and lindane harmless and convert them into valuable chemicals – a breakthrough for the *remediation of contaminated sites*

Comments URL: https://news.ycombinator.com/item?id=46337953

Points: 7

# Comments: 1

Which makes sense for something that isn’t AI but LLM.

https://en.wikipedia.org/wiki/Polyploidy

On the Russian fora I’m often hitting a wall with unfamiliar chip IDs in their schematics. But when looking up smd markings they often have a nice photo of the part in situ.