The list of minor planets numbered from 601001 to 602000 refers to a specific range of small celestial bodies that have been given permanent numbers by the Minor Planet Center (MPC). These minor planets include asteroids, and they have been identified and cataloged based on their orbits around the Sun.
| Grade | Name | Notes |
|---|---|---|
| 4 | C / C++ | Cheatsheets: C, C++, POSIX C API |
| 3 | x86 assembly, ELF | Cheatsheet, x86 Paging Tutorial, Bare Metal |
| 4 | Python | Cheatsheet |
| 4 | Bash | Cheatsheets: language, POSIX / GNU utils |
| 4 | HTML, CSS, JavaScript | web technology, Node.js, CoffeScript |
| 4 | Java | Cheatsheet, school projects |
| 3 | Ruby, Rails | GitLab contributions, cheatsheets: Ruby, rails-cheat |
| 3 | GDB | Cheatsheet |
| 2 | MySQL | Tutorial |
| 3 | LaTeX, Markdown | LaTeX cheatsheet, Markdown style guide, Markdown Testsuite contributions, Jekyll cheatsheet |
Why Ciro Santilli removed Disqus comments from his website in 2019-05-04 by 
Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16Commit: github.com/cirosantilli/cirosantilli.github.io/commit/794705a201a79b5128934e69df85e3511655c03f
As Ciro started getting a lot of comments on his home page about China, he decided that Disqus does not scale, and that it would be more productive long term to remove it and point people to GitHub issues instead.
Upsides of removal:
- Disqus discoverability is bad:
- Disqus archival is bad: web.archive.org/ does not work, and no one knows how to export the issues: www.archiveteam.org/index.php?title=Disqus
- before, there were two places where people could comment, Disqus and GitHub issues. Now there is just one.
- Disqus has ads if you ever reach enough traffic, which unacceptable, especially if the website owner don't get paid for them! It also makes page loads slower, although that likely does not matter much.
Downsides:
- people are more likely to comment on Disqus than to create an issue on GitHub, especially because most people use GitHub professionally. But this has the upside that there will be less shitposts as well.
- with Disqus you can see all issues attached to a page automatically, which is nice. But for as long as Ciro is alive, he intends to just solve the issues, cross link between content and issues and tag things appropriately.
Ciro's stance towards China hasn't changed, and China comments and corrections about his website are still welcome as always.
Related issue: github.com/cirosantilli/cirosantilli.github.io/issues/37
Once the ball starts rolling, these are people who should be contacted.
Basically anything under educational charitable organization counts.
It is also worth having a look under the Wikipedia page for open educational resources: en.wikipedia.org/wiki/Open_educational_resources
Looks like this:
Feels quite good.
Label markings:
Wheel hole separation:Trying to buy a replacement: www.amazon.co.uk/dp/B08KVZQSTG
composite particle made up of an even number of elementary particles, most commonly one particle and one anti-particle.
This can be contrasted with mesons, which have an odd number of elementary particles, as mentioned at baryon vs meson vs lepton.
Contains the full state of the quantum system.
This is in contrast to classical mechanics where e.g. the state of mechanical system is given by two real functions: position and speed.
The wave equation in position representation on the other hand encodes speed in "how fast does the complex phase spin around", and direction in "does it spin clockwise or counterclockwise", as described well at: Video "Visualization of Quantum Physics (Quantum Mechanics) by udiprod (2017)". Then once you understand that, it is more compact to just view those graphs with the phase color coded as in Video "Simulation of the time-dependent Schrodinger equation (JavaScript Animation) by Coding Physics (2019)".
Quantum field theory lecture by Tobias Osborne (2017) Lecture 14 by Ciro Santilli 37 Updated 2025-07-16
Ciro Santilli 37 Updated 2025-07-16Some of the most notable ones:
- 1942: Chicago Pile-1: the first human-made nuclear chain reaction.
- 1943: X-10 Graphite Reactor: an intermediate step between the nuclear chain reaction prototype Chicago Pile-1 and the full blown mass production at Hanford site. Located in the Oak Ridge National Laboratory.
- 1944: B Reactor at the Hanford site produced the plutonium used for Trinity and Fat Man
Maximum current that can flow across a Josephson junction, as can be directly seen from the Josephson equations.
Is a fixed characteristic value of the physical construction of the junction.
It can be seen as the limit case of an Einstein solid at high temperatures. At lower temperatures, the heat capacity depends on temperature.
Theory that gases are made up of a bunch of small billiard balls that don't interact with each other.
This theory attempts to deduce/explain properties of matter such as the equation of state in terms of classical mechanics.
Pinned article: 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!
Intro to OurBigBook
. Source. We have two killer features:
- 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-calculusArticles 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/derivativeVideo 2. OurBigBook Web topics demo. Source. - 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.
- 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
Figure 2. You can publish local OurBigBook lightweight markup files to either OurBigBook.com or as a static website.
Figure 3. Visual Studio Code extension installation.
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. 
- Infinitely deep tables of contents:
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