Electronics Design

World's smallest QR code, smaller than bacteria, could store data for centuries

World's smallest QR code, smaller than bacteria, could store data for centuries A record-breaking microscopic QR code c...

3 comments posted 4mos

posted by alien

3 comments posted 4mos posted by alien

pcb layout

I've seen a bunch of ads lately for PCB layout people. Salary ranges are impressive, up to $170K. Are you seeing a shor...

40 comments posted 4mos

posted by jl

40 comments posted 4mos posted by jl

Hickey experiences with 1" IMC

Is this going to be an exercise in futility? Or, just one of careful practice? (Ideally, something like a 4" radius)

15 comments posted 4mos

posted by blockedofcourse

15 comments posted 4mos posted by blockedofcourse

Fwd "Critix/DeepOs", was Re: Meta: a usenet server just for sci.math

> Hello Kimi, this is Ross A. Finlayson, I call you "Kimi" and answer to > "RF". I have some ideas about OS design with...

0 comments posted 4mos

posted by ross.a.finlayson

0 comments posted 4mos posted by ross.a.finlayson

another good book

Dark Tide: The Great Boston Molasses Flood of 1919 Really good reading. It has molasses, alcohol, fermentation, WW1, an...

38 comments posted 4mos

posted by jl

38 comments posted 4mos posted by jl

Watch antenna

I have been wondering about what is used as an antenna in a radio-controlled watch. These receive coded signals from VL...

37 comments posted 4mos

posted by Jeff

37 comments posted 4mos posted by Jeff

highly stable AC->DC power supplies

One of the old simulator systems I maintain is a non-qualified sim that we got out of a junkyard and we put back togeth...

5 comments posted 4mos

posted by christopher

5 comments posted 4mos posted by christopher

Re: CERN and thw anti-matter bomb?

> On Thu, 26 Mar 2026 15:32:04 GMT, Jan Panteltje snipped-for-privacy@comet.invalid > wrote: > > >>Jeroen Belleman snip...

7 comments posted 4mos

posted by liz

7 comments posted 4mos posted by liz

software situation

https://www.eetimes.com/software-engineering-has-been-commoditized-and-automated-whats-next/ John Larkin Highland Tech G...

65 comments posted 4mos

posted by jl

65 comments posted 4mos posted by jl

Physicists just turned glass into a powerful quantum security device

From: https://www.sciencedaily.com/releases/2026/03/260324024255.htm Physicists just turned glass into a powerful quant...

1 comments posted 4mos

posted by alien

1 comments posted 4mos posted by alien

NUC mounts

As size seems to be one of the prime factors in their design, why is it that mounting seems an afterthought? I've an ol...

1 comments posted 4mos

posted by blockedofcourse

1 comments posted 4mos posted by blockedofcourse

Physisists discover a heavy cousin of the proton at CERN's Large Hadron Collider

Physicists discover a heavy cousin of the proton at CERN’s Large Hadron Collider CERN scientists have discovered a long...

27 comments posted 4mos

posted by alien

27 comments posted 4mos posted by alien

cool book

https://www.dropbox.com/scl/fi/ldhqkdvotr5xh62n2x5o0/OpenCircuits_1.jpg?rlkey=1xxbnjgcoqs2j2xpui4v2iu0x&raw=1...

46 comments posted 4mos

posted by jl

46 comments posted 4mos posted by jl

Surplus electricity

For applications that are NOT "grid connected", what (useful things, even if inefficient) can you do with "surplus" ele...

136 comments posted 4mos

posted by blockedofcourse

136 comments posted 4mos posted by blockedofcourse

Parts Shortage?

RS has virtually no electrolytic capacitors in stock is blaming the situation in the Middle East. I didn't know the Gul...

18 comments posted 4mos

posted by cd

18 comments posted 4mos posted by cd