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Check if your IKEA chair is compatible with your screen

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Re: Check if your IKEA chair is compatible with your screen

#181

Earlier quoted context omitted.

my favorite story on this is a town in north east usa changed it's traffic lights from energy wasting old fashion lights to new fancy low energy lights. The unexpected result: in winter time these lights did not melt the snow away and the lights were opaque with white snow.

Technology Connections did an episode on this kind of stuff. GE just installs heaters in their streetlights now.

I mean, at least now the heater only has top burn power during the winter (I hope)

Re: Check if your IKEA chair is compatible with your screen

#182

Earlier quoted context omitted.

Its the stuff what happens when you think 'what can i do with the hardware that i have' instead of 'which hardware to buy'.

I used to think this way, but then HN scared me into thinking that all this 5+ year hardware is much less power-efficient, so now I just... avoid the issue entirely, and don't do anything requiring hardware, old or new.

You may find it helpful to check how much power things actually use and what power actually costs where you are. I used to obsess over energy efficiency until I realized that all my machines were laptops that maxed out at like 40W running full bore and I'd spent hours saving like $0.10.

Re: Check if your IKEA chair is compatible with your screen

#183
post #89

There is an old EEVblog[1] video on the topic. Mine doesn't do it from chairs, but it regularly blacks out if I turn on the nearby LED strip. [1] https://www.youtube.com/watch?v=r-V_Z3bD_PA

He documented a similar phenomenon too: https://www.youtube.com/watch?v=weJ4JdFat8o&t=167s

Your chair is fine, but your monitor is probably a potato if it can't take that interference.

Re: Check if your IKEA chair is compatible with your screen

#184
post #68

Earlier quoted context omitted.

I invested in a frame.work laptop. If I ever purchase a new mainboard, I'll get this cooler for my old mainboard and use it as a server or mount it to a TV: https://www.coolermaster.com/catalog/cases/mainboard-case/fr...

The fact that traditional parts makers like Cooler Master are putting out Framework cases and such bodes really well, I reckon. There are few things I've bought that produce the opposite of buyer's remorse, and my Framework is at the top of the list.

As much as it would interest me to learn that Cooler Master designed and created a product out of sheer enthusiasm for a small third-party vendor, it much more likely came about through traditional means.

Not long ago, Framework engaged in marketing and promotion campaigns to demonstrate aftermarket uses for their mainboards via direct outreach to popular creators on YouTube and Reddit. I spoke with one of the participants who confirmed that they were sent the mainboard and commissioned by Framework for their project.

Doesn't make any of it less cool, but there's no "secret cult of Framework" driving things, just smart business strategy.

Re: Check if your IKEA chair is compatible with your screen

#185
post #90
post #30

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Cars are a terrible ESD and EMC environment and safety critical at the same time. Computer equipment usually does pretty well, especially after installation (when there's good ground path everywhere and it's in a chassis). Between ferrite beads and TVS, there's a pretty good amount of protection, and I've seen pretty few ESD anomalies-- a reset or two when touching connectors long ago is about the extent of it. RFI a…

As a kid, someone gave me a toy keyboard. Checking Google, it looks nearly identical to a Casio PT-1, but was probably a clone or slightly different model. 9 year-old me was delighted to discover that it would start playing on its own when it was near the plasma globe I had bought at a science museum gift shop. I couldn't explain it, but eventually came to a vague understanding. It was semi-random, mashing together s…

I had that keyboard and we sat listening to the spooky random music once, i did not know you could reproduce it with a lava lamp! I loved it it was even playing notes out of the register so low that the speaker could not reproduce. Pure magic

Re: Check if your IKEA chair is compatible with your screen

#187

Earlier quoted context omitted.

Technology Connections did an episode on this kind of stuff. GE just installs heaters in their streetlights now.

I mean, at least now the heater only has top burn power during the winter ( I hope )

even better. it only has to heat when it's actively snowing.

Re: Check if your IKEA chair is compatible with your screen

#188
post #23

One of my first jobs 30+ years ago was ESD testing automotive and consumer electronics. I would spend a week with a discharge gun methodically running different discharge energies and waveforms both directly onto the devices as well as onto radiators at various distances from the device under test, as well as any cabling/harnessing that attached to the device. Then the design team would figure out the reason for any…

Expensive screens screw it up sometimes too. LG had a $1300 5K Thunderbolt display that didn't work within 5 feet or so of a wifi router.

Re: Check if your IKEA chair is compatible with your screen

#189

Earlier quoted context omitted.

This is the greatest thing I've read today. I love when software and the real world have entirely unexpected interactions. And by love, I usually mean hate, especially when I'm the one that has to debug them.

These sorts of things make for good war stories. I find a trick to improve my attitude while dealing with them is to remind myself "this will be a good story at least, and I'll be glad it happened once I'm regaling others with it".

I call this “Type 2 Fun”. As in it’s more fun to tell the story than be experiencing it.

As an example: many backpacking trip stories are type 2 fun.

Re: Check if your IKEA chair is compatible with your screen

#190
post #94

Earlier quoted context omitted.

It's much less of an issue with balanced leads, so just use those?

Everything is already balanced, that's a given.

Yeah but is everything balanced or are you mixing the two? And if everything is balanced is everything properly grounded?

Incredible read on that topic: https://www.ranecommercial.com/kb_article.php?article=2127

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