The masks used in litography to compensate distortion of details smaller than wavelength are pretty much at the point of being magic circles.
https://www10.edacafe.com/blogs/editorial/files/2023/03/nvidia.png
Anon ponders modern magic
Submitted 9 months ago by MacNCheezus@lemmy.today to greentext@sh.itjust.works
https://lemmy.today/pictrs/image/1b464ed8-d711-4818-9fc4-d61f2621216d.jpeg
Comments
MustrumR@kbin.social 9 months ago
Gonzako@lemmy.world 9 months ago
Care to eli5 what you’re talking about?
p1mrx@sh.itjust.works 9 months ago
Here’s a presentation: www.youtube.com/watch?v=OAB6Xh8L1kk
They’re basically generating weird patterns that manipulate light to project a very precise shadow.
TonyTonyChopper@mander.xyz 9 months ago
reminds me of this insanity youtu.be/wk67eGXtbIw
PsychedSy@sh.itjust.works 9 months ago
Did YT decide to suggest this to you recently?
Numerol@lemmy.world 9 months ago
Praise the Omnissiah
Rekonok@sh.itjust.works 9 months ago
From the decay of our flesh Fortnite Porn comfort us
Blessed be the machine
arin@lemmy.world 9 months ago
If we make it to the next century, yes praise the mechs
Sprokes@jlai.lu 9 months ago
Out of the loop? I know that China is no longer allowing export of rare metals, did the situation escalate?
Lux@lemmy.blahaj.zone 9 months ago
The image is from 2022, so i doubt your missing any recent news
Muffi@programming.dev 9 months ago
“extremely rare” is a way of saying second most common that I haven’t heard before.
fidodo@lemmy.world 9 months ago
The rare stone thing would be better for nuclear power. Find lots of rare stone, put it together in a huge pile, they get warm and cause mysterious diseases.
AngryCommieKender@lemmy.world 9 months ago
Uranium is actually pretty common, refining out the right isotope is the complicated part. Heck there were natural nuclear reactors in a couple places that generated power for a few million years.
herrvogel@lemmy.world 9 months ago
Silicon is just the base material. It gets treated with a whole bunch of chemicals that work as dopants, and those are made of much rarer stuff than silicon.
JayDee@lemmy.ml 9 months ago
Sure, Silicon works as a cheap base. Boron, phosphorus, arsenic and antimony are also used in the process, though. Other elements are also finding use in the process.
There is also a minor step in the middle. When scribing process is happening, the other elements are embedded into or deposited onto the substrate between ‘scribings’.
Kolanaki@yiffit.net 9 months ago
I don’t think they mean silicon, they mean gold.
Rodeo@lemmy.ca 9 months ago
Gold also isn’t all that rare. It’s value is so high because of jewelry marketing, not rarity.
webghost0101@sopuli.xyz 9 months ago
Technically correct but just cause there are minerals in the ground doesn’t mean they can be extracted.
Maybe i am wrong but i keep hearing about silicon being harder to come, i suppose op was specifically speaking about the silicon usable for computing.
kameecoding@lemmy.world 9 months ago
interesting silicone usually makes it easier for me to come
TheChurn@kbin.social 9 months ago
The form of silicon used in semiconductor manufacturing, specific formations of sand, is becoming harder to source from the environment. Silicon the element is incredibly abundant - the vast majority of all rocks on Earth are silicates - so there isn't a risk that we run out of silicon itself any time soon.
What may happen, in several decades, is an increase in price due to the need to process more abundant rocks to obtain pure silicon.