Bibliography:
- en.wikipedia.org/wiki/Speed_of_light#First_measurement_attempts Rømer and Christiaan Huygens reached 26% accuracy by the observation of Jupiter's moon!
Replicating the Fizeau Apparatus by AlphaPhoenix (2018)
Source. Modern reconstruction with a laser and digital camera.It has to swim fast, right!
So how is it that mitochondria are not inherited from the father?
- 2016 www.sciencedaily.com/releases/2016/06/160623145932.htm It appears that the exact mechanism hadn't been elucidated
- Stern-Gerlach experiment
- fine structure split in energy levels
- anomalous Zeeman effect
- of a more statistical nature, but therefore also macroscopic and more dramatically observable:
- ferromagnetism
- Bose-Einstein statistics vs Fermi-Dirac statistics. A notable example is the difference in superfluid transition temperature between superfluid helium-3 and superfluid helium-4.
Video "The Biggest Ideas in the Universe | 17. Matter by Sean Carroll (2020)" at youtu.be/dQWn9NzvX4s?t=3707 says that no one has ever been able to come up with an intuitive reason for the proof.
Introduction to Spintronics by Aurélien Manchon (2020) spin-transfer torque section
. Source. Describes how how spin-transfer torque was used in magnetoresistive RAM
More comments at: Video "Introduction to Spintronics by Aurélien Manchon (2020)".
Sponsor Ciro Santilli's work on OurBigBook.com Progress updates by
Ciro Santilli 40 Updated 2025-11-21
Ciro Santilli wants to make sure that you get clear highlights of what your donation money is going into!Sponsors also receive the "Ciro's Edit" email newsletter if desired, which contains similar updates to the above, but delivered directly to their inbox.
At github.com/cirosantilli/china-dictatorship/issues/738 a user made a comment about gang raping my mother (more like country-raping).
As mentioned at github.com/cirosantilli/china-dictatorship/issues/739, ally Martin then reported the issue, and GitHub took down the wumao's account for a while using their undocumented shadowban feature, until the wumao edited the issue.
Based on the discussion with Martin, I then recommended at github.com/cirosantilli/china-dictatorship/blob/41b4741a4e6553f44f5f1ef85cf63c55eb7b8277/CONTRIBUTING.md that we do not report such issues, and that GitHub do not delete such accounts, with rationale explained on the CONTRIBUTING.
And do 5 big queries instead of hundreds of smaller ones.
For example, a README.ciro document that references another document saying:needs to fetch "speed-of-light" from the ID database (previously populated e.g. by preparsing light.ciro:to decide that it should display as "Speed of light" (the title rather than the ID).
The \x[speed-of-light] is fast.= Light
== Speed of lightPreviously, I was doing a separate fetch for each
\x[] as they were needed, leading to hundreds of them at different times.Now I refactored things so that I do very few database queries, but large ones that fetch everything during parsing. And then at render time they are all ready in cache.
This will be fundamental for the live preview on the browser, where the roundtrip to server would make it impossible
Some further comments at: Section "Cataclysm: Dark Days Ahead".
Ciro's Edict #5 Link to an image or video in another file that has an
Ciro Santilli 40 Updated 2025-07-16
\x on title from another file by Issue report at: github.com/ourbigbook/ourbigbook/issues/198 Suppose you had:
programming-language.ciro
= Programming language
\Image[https://raw.githubusercontent.com/cirosantilli/media/master/python-logo.jpg]
{title=The \x[python-programming-language] logo}
== Python
{c}
{disambiguate=programming-language}= Logos I like
\x[image-the-python-logo]Now, when rendering
\x[image-the-python-logo], we would need to fetch two IDs:image-the-python-logofor theTheandlogopartpython-programming-languageitself, to know that\x[python-programming-language]should render asPython
But after group all SQL queries together was done, there was no way to know that rendering
image-the-python-logo would imply also fetching python-programming-language.This was solved by adding a new database entry type,
REFS_TABLE_X_TITLE_TITLE to the existing References table, which tracks dependencies between IDs.Some smart people just brought up to my attention that OurBigBook.com is a bit like: roamresearch.com/ and other graph knowledges. I feel ashemed for not having seen this software and its alternatives before. I was so focused on the "book aspect" of it that I didn't search much in there. I couldn't find an immediate project killer superset from the options in that area, but maybe one exists. We'll see.
A continuous wave (CW) is a type of electromagnetic wave that maintains a constant amplitude and frequency over time. In a more general sense, it refers to any waveform that does not change shape or is not pulsed, meaning it is steady and continuous in nature. ### Key Characteristics of Continuous Waves: 1. **Constant Amplitude**: The wave maintains the same power level throughout its duration, meaning there are no peaks and troughs in its intensity.
A random laser is a type of laser that operates based on the principles of random scattering rather than a well-defined optical cavity. In a traditional laser, light is amplified in a highly organized manner within a coherent optical cavity formed by mirrors. The laser action occurs when a specific population of energy states is established, allowing light to be emitted in a coherent and directed beam. In contrast, a random laser does not rely on mirrors or a perfectly structured cavity.
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 3. Visual Studio Code extension installation.Figure 4. Visual Studio Code extension tree navigation.Figure 5. Web editor. 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. - 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





