Recent comments in /f/gadgets

other_usernames_gone t1_irc85nr wrote

I'm just spitballing but you could have the battery embedded within a plastic headless bolt, then you screw that bolt into the "arm" of the headphones. Have metal contacts like a lightbulb to connect it to the rest of the headphone.

Have a torx screw head exposed from the outside, now to replace the battery you unscrew this bolt to get the battery out and replace it with another battery in bolt unit.

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rickg t1_irbyqy1 wrote

Oh for god's sake. Things like this are ewaste only because people toss them vs recycling them. And if you think most people would DIY battery repair on these, you're naive.

Last time this came up someone linked to their article on 'less evil' BT buds but obviously didnt read it. Even the bud that you could theoretically repair are fiddly as hell and several use special batteries. THey're theoretically repairable but not by 99% of DIYers.

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DevilsTrigonometry t1_irbkmal wrote

Active vibration cancellation is already in use in semiconductor fabs and other sensitive manufacturing applications. But it has technical limitations: just like active noise cancellation, it works better for lower frequencies, lower amplitudes, and smoother waveforms. So it's sort of the final layer of protection: first you choose a quiet site, then you construct the building and the equipment footings using passive solutions that dissipate as much vibration as possible and smooth out the jerks, and then you use active solutions on the equipment itself.

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6SixTy t1_irbkko9 wrote

I wouldn't call it HBM as a concept an abject failure, as the tech has found a niche in Nvidia and AMD's top dog price-is-no-object accelerators.

Problem was that AMD tried to sell cards with the tech to consumers, which don't really benefit from the high bandwidth part of the tech, so all it really did at the end of the day was bump up the cost and limit VRAM amounts.

Also, tbd on new info from RDNA3, as its supposed to include MCM.

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DevilsTrigonometry t1_irbf072 wrote

It's much easier to isolate the contents of a low-rise building from wind than from the ground. The internal structure of the building can be made self-supporting, with the walls basically just 'floating' around it.

You can't really 'float' a floor over the ground - you have to transmit the force of gravity from the contents of the building to the ground, and any connection capable of transmitting force will also conduct vibration. There are all kinds of complicated engineering solutions for reducing the amount that's conducted, but they take up space and cost money, so it's usually more efficient to choose a 'quieter' site than to build a better isolation system.

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DevilsTrigonometry t1_irbafvn wrote

It's very unlikely that US domestic investment will catch up to, or even keep pace with, global growth in demand for semiconductors. The entire world will continue to have a major stake in Taiwan's stability for the foreseeable future.

(The specific Western national-security interest in Taiwanese independence and liberal democracy may be weakened, which could be a long-term problem. But there won't be any impact on the West's willingness to defend Taiwan from a military invasion, armed coup, or other destabilizing attack.)

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NebXan t1_irb8i3c wrote

I feel like you're kind of missing the point of the article.

Whether the batteries have physical defects or not, they will need to be replaced eventually. The point of this article is to point out how Apple's design makes it almost impossible to do that, which will lead to more and more e-waste.

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DevilsTrigonometry t1_irb7v15 wrote

There's an orders-of-magnitude difference between the amplitudes of ground vibrations produced by cars and by jackhammers. Vibration isolation systems designed to handle normal traffic etc. would be overwhelmed by heavy construction equipment.

And when you say "asking for trouble," what do you see as the alternative? Space manufacturing isn't even close to being viable, so either we don't do nanometer-precise manufacturing at all, or we do it somewhere on Earth, and the latter means dealing with the possibility of ground vibration. (Or water motion, which is even harder to isolate.)

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TheRogueMoose t1_irb0s4h wrote

"...stolen teardown walkthrough..." Please explain how ifixit can steal from ifixit? Both the video and the person who wrote the article work there.

But yes, the bug/recall issue is a very real thing. I would be curious what the parameters are that trigger the warning.

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DrAbeSacrabin t1_irawn02 wrote

So is this a firmware/software issue where the pods are incorrectly stating there is an issue? Or are the batteries actually in need of replacement.

Because one is essentially a bug fix.

The other is a potential recall.

This was the dumbest “article” ever. No investigation into if the batteries actually have issues, just a short blurb about “users reporting” followed by a video/walkthrough of a teardown of the pros…. So worthless.

Edit: the content is not stolen as the video and article are created by the same company.

What I should have put is that this is a clear attempt to drive people to their YouTube page (showing teardown of pro’s) to view pointless content (by their own admission), as you cannot repair the batteries anyways. Nor of course do the determine or offer any insight as to if the battery is even the actual problem.

So in short, turn a couple user complaints from the web into a half-ass article that can feed your YouTube page (and revenue stream) more views, while actually providing no insight into the actual issue.

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