Pion by Ciro Santilli 35 Updated +Created
Conceptually the simplest mesons. All of them have neutral color charge:
  • charged: down + anti-up or up + anti-down, therefore with net electrical charge electron charge
  • neutral: down + anti-down or up + anti-up, therefore with net electrical charge 0
Power, performance and area by Ciro Santilli 35 Updated +Created
This is the mantra of the semiconductor industry:
  • power and area are the main limiting factors of chips, i.e., your budget:
    • chip area is ultra expensive because there are sporadic errors in the fabrication process, and each error in any part of the chip can potentially break the entire chip. Although there are
      The percentage of working chips is called the yield.
      In some cases however, e.g. if the error only affects single CPU of a multi-core CPU, then they actually deactivate the broken CPU after testing, and sell the worse CPU cheaper with a clear branding of that: this is called binning www.tomshardware.com/uk/reviews/glossary-binning-definition,5892.html
    • power is a major semiconductor limit as of 2010's and onwards. If everything turns on at once, the chip would burn. Designs have to account for that.
  • performance is the goal.
    Conceptually, this is basically a set of algorithms that you want your hardware to solve, each one with a respective weight of importance.
    Serial performance is fundamentally limited by the longest path that electrons have to travel in a given clock cycle.
    The way to work around it is to create pipelines, splitting up single operations into multiple smaller operations, and storing intermediate results in memories.
Applied Materials by Ciro Santilli 35 Updated +Created
ASM International by Ciro Santilli 35 Updated +Created
Parent/predecessor of ASML.
Kaon by Ciro Santilli 35 Updated +Created
One strange quark bound with one up quark or a down quark. 6 combinations exist, 4 if we consider antiparticles the same as particles.
IMEC by Ciro Santilli 35 Updated +Created
Video 1.
imec: The Semiconductor Watering Hole by Asianometry (2022)
Source. A key thing they do is have a small prototype fab that brings in-development equipment from different vendors together to make sure the are working well together. Cool.
Semiconductor device fabrication by Ciro Santilli 35 Updated +Created
This is the lowest level of abstraction computer, at which the basic gates and power are described.
At this level, you are basically thinking about the 3D layered structure of a chip, and how to make machines that will allow you to create better, usually smaller, gates.
Computer hardware by Ciro Santilli 35 Updated +Created
Mathieu group by Ciro Santilli 35 Updated +Created
useEffect by Ciro Santilli 35 Updated +Created
This should only be used for things that happen outside of the state that React trackes, e.g. window event handlers.
React function component by Ciro Santilli 35 Updated +Created
Josephson junction by Ciro Santilli 35 Updated +Created
Dan Dascalescu by Ciro Santilli 35 Updated +Created
AGI conference by Ciro Santilli 35 Updated +Created
It is hard to overstate how low the level of this conference seems to be at first sight. Truly sad.
Imperative programming by Ciro Santilli 35 Updated +Created
Amazon custom silicon by Ciro Santilli 35 Updated +Created
Like Google custom silicon, Amazon server operations are so large that with the slowdown of Moore's law, it started being worth it for them to develop custom in-house silicon to serve as a competitive advantage, not to be sold for external companies. Can you imagine the scale required to justify silicon development investment that is not sold externally!
Continuous integration by Ciro Santilli 35 Updated +Created
Pinned article: ourbigbook/introduction-to-the-ourbigbook-project
Welcome to the OurBigBook Project! Our goal is to create the perfect publishing platform for STEM subjects, and get university-level students to write the best free STEM tutorials ever.
Everyone is welcome to create an account and play with the site: ourbigbook.com/go/register. We belive that students themselves can write amazing tutorials, but teachers are welcome too. You can write about anything you want, it doesn't have to be STEM or even educational. Silly test content is very welcome and you won't be penalized in any way. Just keep it legal!
Video 1.
Intro to OurBigBook
. Source.
We have two killer features:
  1. topics: topics group articles by different users with the same title, e.g. here is the topic for the "Fundamental Theorem of Calculus" ourbigbook.com/go/topic/fundamental-theorem-of-calculus
    Articles of different users are sorted by upvote within each article page. This feature is a bit like:
    • a Wikipedia where each user can have their own version of each article
    • a Q&A website like Stack Overflow, where multiple people can give their views on a given topic, and the best ones are sorted by upvote. Except you don't need to wait for someone to ask first, and any topic goes, no matter how narrow or broad
    This feature makes it possible for readers to find better explanations of any topic created by other writers. And it allows writers to create an explanation in a place that readers might actually find it.
    Figure 1.
    Screenshot of the "Derivative" topic page
    . View it live at: ourbigbook.com/go/topic/derivative
    Video 2.
    OurBigBook Web topics demo
    . Source.
  2. local editing: you can store all your personal knowledge base content locally in a plaintext markup format that can be edited locally and published either:
    • to OurBigBook.com to get awesome multi-user features like topics and likes
    • as HTML files to a static website, which you can host yourself for free on many external providers like GitHub Pages, and remain in full control
    This way you can be sure that even if OurBigBook.com were to go down one day (which we have no plans to do as it is quite cheap to host!), your content will still be perfectly readable as a static site.
    Figure 5. . You can also edit articles on the Web editor without installing anything locally.
    Video 3.
    Edit locally and publish demo
    . Source. This shows editing OurBigBook Markup and publishing it using the Visual Studio Code extension.
    Video 4.
    OurBigBook Visual Studio Code extension editing and navigation demo
    . Source.
  3. https://raw.githubusercontent.com/ourbigbook/ourbigbook-media/master/feature/x/hilbert-space-arrow.png
  4. Infinitely deep tables of contents:
    Figure 6.
    Dynamic article tree with infinitely deep table of contents
    .
    Descendant pages can also show up as toplevel e.g.: ourbigbook.com/cirosantilli/chordate-subclade
All our software is open source and hosted at: github.com/ourbigbook/ourbigbook
Further documentation can be found at: docs.ourbigbook.com
Feel free to reach our to us for any help or suggestions: docs.ourbigbook.com/#contact