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Turbulence at the trans-sonic barrier is one of the most difficult and poorly understood problems in modeling even today - Heisenberg famously said he’d ask god two questions: why relativity, and why turbulence? - and as a result experimental results really are the best way of determining even the base parameters of the behavior of a system under those conditions.

Just make sure they drink plenty of water first, urine is corrosive enough that it’ll break down the seals in an IP67 phone and claiming the warranty for that one was… tricky.

Yep, prince rupert* drops are thermally tempered glass. As I understand it (again this is not my field, I just think it’s neat), prince rupert drops aren’t “frail” at any one point exactly - the long tails are just as strong as the rest, but because they have such a tiny cross sectional area (thus the force you apply isn’t distributed across a wide surface area) you’re able to overcome the strength of the glass. That’s why a failure there causes a cascade, because the force is otherwise evenly distributed throughout the whole surface. Because the glasses don’t have a similar feature where the cross section becomes miniscule, they’re not going to be significantly more or less frail at any one point.

With the caveat that this is very much not my field (I just think it’s neat): I believe you wouldn’t see much of a benefit - they are different methods of achieving the same result (putting the surface of the glass under tension), and while chemically strengthened glass gives a more uniform result which gives greater strength, subsequently heat tempering that glass would likely not compound the effect. I also suspect that it would be exceedingly difficult to design a process where you could get the benefit of both techniques at once - chemically tempered glass requires a long cooling period, which is the inverse of the process to produce heat tempered glass.

Chemically tempered glass is a great deal stronger than thermally tempered glass (up to 10x stronger than untreated glass vs. up to 2x, for an incredibly reductive yet illustrative oversimplification)

Potassium ion exchange is the same process used to strengthen phone screen glass (“gorilla glass”) and similar products - it’s actually pretty easy to do at home, too (err… provided you’re comfortable working with liquid potassium). Fascinating chemistry, god ceramics are cool.

I wonder how they’re going to cool it?

Edit: Oh. So they’re just… not doing that. Okay. Hmm.

In the meantime, the company is taking baby steps. For now, the company is limited to just 15 minutes of operation in space before the chips have to be shut off to cool back down.

Sweat is an evaporatve cooling system used to regulate the temperature of the mechanism that keeps a shovel moving. And if you’ve never considered killing yourself over the prospect of spending all day with a shovel, I can at least be confident you’d make an -excellent- archeologist.

(But mild humor aside, I do understand your point.)

Basically, yep. This drone is designed primairly as a target drone; since one of the things the US most wants to be shooting down is Shaheds, the form and capabilites are very similar for training use. (It’s supposedly a more advanced version, anticipating developments that Iran et. al. will likely (or have already) rolled out. Who knows how true that is, though.)

Ah I see, thank you for taking the time to explain! I’m a little curious how much of that perceived hostility in the initial comment was due to multiple unbiased people misinterpreting it in the same way, and how much of that was because they encountered it within the context of OP immediately responding with such over the top defensiveness (an example of the combative behavior I called out).

Generally on lemmy you have to specify that you’re responding to OP when making a top level comment (“Hey op, not to nitpick but [nitpick]” and similar), otherwise it’s assumed you’re replying to the post title or article. Given that, I’m not entirely sure why someone would assume I was attacking OP directly without the context of OP treating it as a personal attack (and no, to be clear it’s just a response to the headline. I only noticed it was a YogPost™ when they responded).

edit: Which is not to blame OP for the misinterpretation, just curious how that may have lead to further misinterpretation.

I’m sorry, I’m not sure I’m following what you mean. I agree about my first comment (which I very much did not intend to be combative or critical of Huawei) - I think it’s pretty clear it was too easy to misinterpret, but OP initially replied to me with an unwarranted degree of defensiveness / hostility which I then subsequently called out. I’m not sure I understand how that was me acting like they were out of line for returning the energy; they brought the energy which I then, to a less harsh extent, returned.

OP has a long history of being incredibly hostile (bordering on abusive) to any perceived criticism - I assume this is why they interpreted “my lack of surprise at an almost tautological result” as somehow being criticism of Huawei or China.

AR glasses could be great - I’ve had a couple dev pairs and there’s real potential to the tech. But they all suffered from a total lack of developer support, which was a real problem given they were banking on outside devs to fill out their app stores. The snap glasses here seem like they’re going to have the same problems as the apple vision and microsoft’s hololens (which was SO GOOD why the FUCK did they never release it?? Fucking M$…): the initial userbase will be tiny due to the price, thus there’s going to be few hobby devs who can afford to buy in and there will be no incentive for the professional devs to invest in developing such a tiny potential market that relies entirely on a single proprietary piece of hardware.

What we need is for there to be enough standardization that we can port apps between hardware so all your time invested in development can’t be tossed into the bin of history at the whim of Snapchat & it’s shareholders.

Oh good grief why are you always so combative? I’m well aware that it’s clearly an accomplishment - but it’s also their only option besides go out of business so I don’t know what the US expected to happen.

Also erm… no, they aren’t end-to-end domestically produced:

The South China Morning Post noted Huawei is reducing reliance on advanced foreign semiconductor equipment

More interestingly, while the Kirin is considerably less dependent on US or Western tech, it doesn’t remove it from the equation entirely, and you still have to look closely at the bill of materials for receipts.

SMIC’s process, however, still leverages ASML immersion scanners.

They’re getting there, but if we go by what’s in the article they don’t have that capability yet.

I mean… yeah? US blocked sales of damn near every US component to Huawei. What else were they going to do besides not use US components?

idk what it’s called but man do I want it. Anyone got a link? I know it lists the forum but I can’t find it for sale anywhere. Fuck I wish search engines still worked…

Edit: Ah, found it. Or at least one souece for it.

What? I’ve said yes twice now. What has that got to do with this? It’s not, and has not been, my question.

(Sorry - It’s a reference to my post history. You may need to turn on NSFW photos to get the joke, I know some clients block them by default.)

I’m all for the reason they wear them being exhibitionism (clearly) but that’s never been what I’ve said. They’re answering the question “are female beach vollyball players forced to wear bikinis”, an easy question to answer and one I’ve never asked; what I asked was “if they’re clearly a performance enhancement, why are the men not wearing them too?” which is a much more difficult thing to get an answer for.

That’s uh. Well, rather demonstrably wrong. On both points.

You said you were skeptical of two pieces being better for performance than other clothing.

Where did I say this? It has never been the question I asked, but it has been the one you’ve answered and I’ve repeatedly clarified that it was not my question. It would be nice if that was my question - indeed, I think it even requires far less than two minutes to find an answer to. But it’s not my question, nor has it at any point been.