Cosmic ray by Ciro Santilli 37 Updated 2025-07-16
Video 1.
CosmicPI: Detecting Cosmic Rays with a Raspberry Pi by Marco Reps (2021)
Source.
Figure 1.
Cosmic microwave background anisotropy measured by the Wilkinson Microwave Anisotropy Probe
. Source.
Vimium by Ciro Santilli 37 Updated 2025-07-16
Since you can't escape shitty browser GUIs and live in the command line, the next best thing you can do is to bring Vim bindings to your browser :-)
There is one major annoyance: you can't use ESC to leave the address bar focus, but using Tab as a workaround works:
Two Minute Papers by Ciro Santilli 37 Updated 2025-07-16
The approach of this channel of exposing recent research papers is a "honking good idea" that should be taken to other areas beyond just machine learning. It takes a very direct stab at the missing link between basic and advanced!
CoinGeek by Ciro Santilli 37 Updated 2025-07-16
news.ycombinator.com/item?id=14691623
CoinGeek is either run by or paid for by Craig Wright. You can see that all of the articles are either strongly in his favor or in line with his recent opinions.
Local group by Ciro Santilli 37 Updated 2025-07-16
The basically composed of only the Andromeda Galaxy and the Milky Way. Every other galaxy is a satellite of those two.
Sirius by Ciro Santilli 37 Updated 2025-07-16
This is quite close! But as mentioned at: stars nearest to the Sun, there are several others nearby. Notably Sirius at 9 ly, the brightest star in the sky as of 2020.
Continental drift by Ciro Santilli 37 Updated 2025-08-08
Video 1.
How Plate Tectonics was Discovered (1970)
Source. Produced by Simon Campbell-Jones

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!
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