I've had this situation and basically just had to throw out stuff that was written because its completely terrible/wrong. Either start again or just give up.
Not really new, been going on for decades. With recent political changes I would have assumed it might have been getting better actually. I'm guilty, Canadian living in the SF Bay area.
Back in 2019 Microsoft sent job offer, 145k usd/yr base moving to SF. Couldn't get visa (no degree). New offer: 95k cad/yr in Vancouver
I've done well since then, but being in Canada I'm always "out of band". Implicit implication that I should move south where lower level positions already match Canadian bands
What you and hiddenthrowaway wrote is consistent with my understanding, that Canadian FAANG offices are staffed mostly with those who cannot (and often will never get) a US visa, plus the odd local who doesn't want to move to the US for personal or family reasons.
I think the materially, even pure, is strongly colored, so you can't easily determine impurities visually, unlike diamonds and sapphires and other colorless-when-pure minerals.
Are you sure? Liquid metal was the name of a bulk metallic glass. There were usb flash drives using it as a case https://en.wikipedia.org/wiki/Liquidmetal. Wikipedia lists apple licensing this technology.
Metal injection molding is also a thing but I haven't heard it called liquid metal. Usually its MIM.
Honestly, I didn't know that "amorphous metal alloy" is also called metallic glass. I computed it to something else entirely. So you're right on that front.
MIM is something else, that's right, but properties of Liquid Glass allows it to be injection molded AFAIK.
MIM process is completely different from casting Liquid Metal. MIM generally starts as a powder and heated and molded, Liquid Metal can be just "melted and molded".
I have a stainless steel razor built with MIM. Has no resemblence to SanDisk Titanium's feel (which I also have).
I did my Ph.D. by developing BEM evaluators for working on metals, but glasses (as in class of materials) were not in my domain, so I'm thick as a brick on that part of the materials science.
Edit: BEM methods is as fun as USB buses and PSU units.
With close microscopic examination of inclusions and defects, yes you probably can. There are also spectroscopic differences. In general looking at finished jewelry, no, not really.
> With close microscopic examination of inclusions and defects, yes you probably can.
With good laboratory instrumentation, you might be able to distinguish between them -- i.e. note that they're not perfectly identical, that they are distinguishable -- but, unless you are an expert, you would be unable to tell which of the two is the natural stone.
Yes, you need to know which features are evidence of mined vs. synthetic/lab grown. Although there is equipment now preloaded with software that can discriminate. I think its based on photoluminescence.
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