RaLa Experiment by Ciro Santilli 34 Updated +Created
Video 1.
Oppenheimer's Gamble by Welch Labs
. Source. Fails to mention Plutonium-240 as the source of the problem.
  • youtu.be/W06g7gIfwRE?t=252 cool to learn that the explosive lenses had to be made out of two different types of explosives, slow and fast, to be more symmetrical
Face representation standard by Ciro Santilli 34 Updated +Created
Is there nothing standardized besides just raw images?
E.g. www.nist.gov/system/files/documents/2021/02/25/ansi-nist_2007_griffin-face-std-m1.pdf from 2005 by NIST says:
Specify face images because there is no agreement on a standard face recognition template - Unlike finger minutiae ...
so comparing it to fingerprint file formats such as ISO 19794-2. Sad!
Results by Ciro Santilli 34 Updated +Created
Pantex by Ciro Santilli 34 Updated +Created
It's where most American nuclear weapons are assembled and disassembled.
Video 1.
Dismantlement of Nuclear Weapons by Sandia National Laboratories
. Source. Great video, shows everything that is not classified.
Savannah River site by Ciro Santilli 34 Updated +Created
This was one of the two American plutonium production sites, together with the Hanford site. www.youtube.com/watch?v=qwKhz7BPBLY mentions it produced about 1/3 of the total American plutonium.
www.reuters.com/article/world/americas-nuclear-headache-old-plutonium-with-nowhere-to-go-idUSKBN1HR1JT/ claims that as of 2018 it stored the majority of the plutonium stockpile of the country.
Uranium dioxide by Ciro Santilli 34 Updated +Created
Weapons-grade plutonium by Ciro Santilli 34 Updated +Created
Linter by language by Ciro Santilli 34 Updated +Created
Legal technology company by Ciro Santilli 34 Updated +Created
JavaScript tooling by Ciro Santilli 34 Updated +Created
American Intercontinental ballistic missile by Ciro Santilli 34 Updated +Created
alcpress.org/military/icbm/index.html has a Google Maps overlay with all of the American ICBM sites, spread out across three centers. It is cute to see how they are very evenly spread out to make it hard to take them out at once.
uploads.fas.org/sites/4/NotebookMap.pdf summarizes all ICBM and also other delivery methods as of 2006.
Rob Muhlestein by Ciro Santilli 34 Updated +Created
rwxrob.github.io/zet visible at rwxrob.github.io/zet/dex/changes Custom closed source system? No table of contents.
Interesting and weird dude who is into livestreaming and living off his limousine and mentoring people about programming:
This is not "open" content. It is illegal to copy anything from this zettelkasten for any other purpose whatsoever that is not guaranteed under American "fair use" copyright law. Violators will be prosecuted. This is to protect myself from people straight-up lying about me and my current position on any topic based on what is here. I'm very serious about prosecution. I will find you and ensure you receive consequences if you abuse this content and misrepresent me in any way.
Also into bikes: rwxrob.github.io/zet/2587/ which is cool:
Wherever my wife is. I am not a solo digital nomad. I’m a guy who lives for months at a time while traveling around all over either in my car or on my bike. In fact, finding a temporary “home” for my car is usually the harder question. I like to drive to a centralized destination and do big loops of bike touring returning to that spot. Then, when I need a break, I drive home to my wife, Doris, recuperate, and prepare for next season.
The doing loops thing makes a lot of sense, it is how Ciro Santilli also likes to explore and eventually get bored of his current location.
American nuclear weapon facility by Ciro Santilli 34 Updated +Created
nct-cbnw.com/americas-new-nukes-plutonium-pits-at-los-alamos/
After the closure of the country’s prime plutonium manufacturing plant at Rocky Flats in 1992, where 1,000 to 2,000 pits were produced every year, a highly reinforced 236,000 sq-ft facility built at LANL earlier in 1978 became the first Department of Energy (DoE) facility capable of producing plutonium cores.
Although initially established for plutonium research and development, in 2003 the Plutonium Facility Building 4 (PF-4) within Tech Area 55 at Los Alamos produced the nation’s stockpile quality (first war reserve) plutonium. In 2006, Congress instructed the DoE to focus on producing pits at this facility.
American plutonium production by Ciro Santilli 34 Updated +Created
sgp.fas.org/othergov/doe/pu50yc.html mentions:
The United States Government has used 14 plutonium production reactors at the Hanford and Savannah River sites to produce plutonium for the U.S. nuclear weapons stockpile and DOE research and development programs. From 1944 to 1994, these reactors produced 103.4 metric tons of plutonium; 67.4 MT at Hanford, and 36.1 at Savannah River.
That site also contains a good summary of the closed shutdown reactors in each site. These are publicly disclosed e.g. at: www.hanford.gov/page.cfm/ProjectsFacilities
www.youtube.com/watch?v=qwKhz7BPBLY mentions that before they stopped production at the end of the Cold War, Hanford site produced 2/3 of the total American stockpile, and Savannah River site produced 1/3.
TODO is there any information available on active breeder reactors? Hanford apparently shutdown.
Uraninite by Ciro Santilli 34 Updated +Created
This is the mineral that Pierre and Marie Curie used to discover polonium and radium.
Video 1.
The Most Dangerous Rock in the World by Welch Labs
. Source. OK, the title is quite minimalistic, he goes on to talk about the full early history of nuclear fission!
Uranium oxide by Ciro Santilli 34 Updated +Created
Edge Of Darkness by Ciro Santilli 34 Updated +Created
Video 1.
Plutonium for self-respect scene from the 1987 film Edge Of Darkness
. Source.
Video 2.
The 50 Greatest Television Dramas: Edge Of Darkness
. Source.
Video 3.
Three wonderful scenes from the 1987 film Edge Of Darkness
. Source.
PUREX by Ciro Santilli 34 Updated +Created
Video 1. . Source. Describes conversion from Plutonium nitrate to a plutonium metal slab, which is then sent to final pit.
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