gcc CLI option by Ciro Santilli 35 Updated +Created
GDB reverse debugging by Ciro Santilli 35 Updated +Created
The best open source implementation as of 2020 seems to be: Mozilla rr.
D and L amino acids by Ciro Santilli 35 Updated +Created
Usually noted D-something, L-something, e.g. L-alanine, D-glutamine.
GDSII by Ciro Santilli 35 Updated +Created
Figure 1.
3D rendering of a GDSII file.
Source.
Gel electrophoresis separation of SNPs by Ciro Santilli 35 Updated +Created
Dan Jewett by Ciro Santilli 35 Updated +Created
Xerox PARC by Ciro Santilli 35 Updated +Created
What a legendary place.
Semiconductor fabrication plant by Ciro Santilli 35 Updated +Created
They put a lot of expensive equipment together, much of it made by other companies, and they make the entire chip for companies ordering them.
Company with a semiconductor fabrication plant by Ciro Santilli 35 Updated +Created
A list of fabs can be seen at: en.wikipedia.org/wiki/List_of_semiconductor_fabrication_plants and basically summarizes all the companies that have fabs.
GenBank by Ciro Santilli 35 Updated +Created
Semiconductor fabrication step by Ciro Santilli 35 Updated +Created
Standard cell library by Ciro Santilli 35 Updated +Created
Basically what register transfer level compiles to in order to achieve a real chip implementation.
After this is done, the final step is place and route.
The standard cell library is typically composed of a bunch of versions of somewhat simple gates, e.g.:
  • AND with 2 inputs
  • AND with 3 inputs
  • AND with 4 inputs
  • OR with 2 inputs
  • OR with 3 inputs
and so on.
Each of those gates has to be designed by hand as a 3D structure that can be produced in a given fab.
Simulations are then carried out, and the electric properties of those structures are characterized in a standard way as a bunch of tables of numbers that specify things like:
  • how long it takes for electrons to pass through
  • how much heat it produces
Those are then used in power, performance and area estimates.
Electronic design automation phase by Ciro Santilli 35 Updated +Created
Generalized coordinate by Ciro Santilli 35 Updated +Created
The variables of the Lagrangian, e.g. the angles of a double pendulum. From that example it is clear that these variables don't need to be simple things like cartesian coordinates or polar coordinates (although these tend to be the overwhelming majority of simple case encountered): any way to describe the system is perfectly valid.
In quantum field theory, those variables are actually fields.
Logic synthesis by Ciro Santilli 35 Updated +Created
The output of this step is another Verilog file, but one that exclusively uses interlinked cell library components.
Integrated circuit layout by Ciro Santilli 35 Updated +Created
Mentor Graphics by Ciro Santilli 35 Updated +Created
Synopsys 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!
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
  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:
    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.
  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