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  • SatTrackCam Leiden (b)log - Imagery, Data Analysis, and Discussions relating to Military Space
    Found via Paulo Amoroso's blog https://journal.paoloamoroso.com/blogroll, but Hannes has mentioned it too.
    See https://sattrackcam.blogspot.com/2019/10/the-structure-of-space-orbital-families.html and https://sattrackcam.blogspot.com/2020/09/the-structure-of-space-2-formation-of.html, but other articles are interesting too.
    Fri May 16 18:30:17 2025 - permalink -
    - https://sattrackcam.blogspot.com/
    blog reading satellite science
  • Pete's blog and personal wiki
    It is from 2012, but I really like the phrase "Tab Purgatory"
    "It has also replaced bookmarks and for me, and in some cases, has allowed me to free things from Tab Purgatory (where a tab is indefinitely open, always to be read 'later')."
    Found via the 9fans mailing list https://www.tuhs.org/pipermail/tuhs/2025-May/031878.html
    Thu May 15 14:28:31 2025 - permalink -
    - https://debu.gs/entries/in-which-are-discussed-hosting-and-wikis
    awk blog plan9 wiki
  • @ramin_hal9001's post | progress on a Emacs Lisp interpreter written in Scheme
    Found on Sacha Chua's blog https://sachachua.com/blog/2025/05/2025-05-12-emacs-news/
    The author plans to create an environment similar to Medley InterLisp, and also inspired by Smalltalk environments like Squeak [1], Pharo [2], or The Glamorous Toolkit [3].
    [1] https://squeak.org/features/
    [2] https://pharo.org/
    [3] https://gtoolkit.com/
    Wed May 14 15:16:30 2025 - permalink -
    - https://fe.disroot.org/@ramin_hal9001/posts/AtxJA8gnXa02frjAEi
    Emacs Lisp Scheme
  • Literate Documentation with Emacs and Org Mode
    Found on Sacha Chua's blog https://sachachua.com/blog/2025/05/2025-05-12-emacs-news/ via https://osem.seagl.org/conferences/seagl2019/program/proposals/664,
    https://osem.seagl.org/users/365 and
    https://osem.seagl.org/conferences/seagl2023/program/proposals/952
    Wed May 14 14:58:37 2025 - permalink -
    - https://gitlab.com/spudlyo/orgdemo2
    Emacs literate-programming org-mode TODO
  • Access Nextcloud files in Emacs
    Found on Sacha Chua's blog https://sachachua.com/blog/2025/05/2025-05-12-emacs-news/
    "If you add a Google Drive or Nextcloud account in GNOME Online Accounts, you can use:
    /gdrive:user@domain:/... or /nextcloud:user@host:/...
    https://www.gnu.org/software/emacs/manual/html_node/tramp/Quick-Start-Guide.html#Using-GNOME-Online-Accounts-based-methods
    Wed May 14 13:03:18 2025 - permalink -
    - https://msz.baz.bar/@quux/114460950255702975
    emacs HOWTO software TODO
  • The Dawn of a new Command Line Interface
    An idea to simplify the software layers involved between command line and display.
    Found on the 9fans mailing list https://9fans.topicbox.com/groups/9fans/T4f1a2098b1e1c854-M474a043f6f18ee4e660a427b/next-generation-acme
    See https://github.com/letoram/arcan/wiki for a wiki about Arcan. https://www.divergent-desktop.org/blog/2020/08/10/principles-overview/ seems to be a good start.
    Wed May 14 07:25:16 2025 - permalink -
    - https://arcan-fe.com/2017/07/12/the-dawn-of-a-new-command-line-interface/
    blog reading software TODO
  • https://csrc.nist.gov/csrc/media/presentations/2024/crclub-2024-10-16/images-media/crypto-club-20241016--hugo--OPAQUE.pdf
    The OPAQUE Password Protocol
    Authentication, Secret Retrieval, End-to-end security
    Hugo Krawczyk, AWS
    NIST Seminar – 10.16.2024

    Found after re-reading https://datatracker.ietf.org/doc/html/draft-haase-aucpace-02 where OPAQUE was mentioned as winner of the CFRG password protocol competition.
    See https://cfrg.github.io/draft-irtf-cfrg-opaque/draft-irtf-cfrg-opaque.html
    Tue May 13 13:00:56 2025 - permalink -
    - https://csrc.nist.gov/csrc/media/presentations/2024/crclub-2024-10-16/images-media/crypto-club-20241016--hugo--OPAQUE.pdf
    cryptography security TODO
  • FSF announces JShelter browser add-on to combat threats from nonfree JavaScript — Free Software Foundation — Working together for free software
    he Free Software Foundation (FSF) today announced the JShelter project, an anti-malware Web browser extension to mitigate potential threats from JavaScript, including fingerprinting, tracking, and data collection.
    The project's website is at https://jshelter.org/.
    Tue May 13 12:13:26 2025 - permalink -
    - https://www.fsf.org/news/fsf-announces-jshelter-browser-add-on-to-combat-threats-from-nonfree-javascript
    FSF JavaScript security tool
  • New math method solves polynomial equations beyond degree four
    Found on the MoHP forum https://www.hpmuseum.org/forum/thread-23526-post-203634.html#pid203634
    The article "A Hyper-Catalan Series Solution to Polynomial Equations, and the Geode"
    N. J. Wildberger &Dean Rubine
    Pages 383-402 | Received 27 Dec 2023, Accepted 07 Jun 2024, Published online: 08 Apr 2025

    can be found on https://www.tandfonline.com/doi/full/10.1080/00029890.2025.2460966#d1e13225
    Thu May 8 10:48:37 2025 - permalink -
    - https://newatlas.com/science/algebras-oldest-problem/
    for:mp mathematics polynomial
  • 42links is an open-source, web-based bookmarking server.
    Found on CLiki https://www.cliki.net/42links
    Tue May 6 21:49:09 2025 - permalink -
    - https://code.rosaelefanten.org/42links/dir?ci=tip
    bookmark common-lisp FOSS software
  • Ben's Book of the Month: Review of "A Vulnerable System: The History of Information Security in the Computer Age" | RSA Conference
    Found on https://www.rsaconference.com/library/Blog/bens-book-of-the-month-review-of-computer-security-and-the-internet, a review of Paul C. van Oorschot's "Computer Security and the Internet: Tools and Jewels from Malware to Bitcoin".
    https://www.amazon.com/Vulnerable-System-Information-Security-Computer/dp/1501758942/ref=monarch_sidesheet_title
    Mon May 5 12:45:00 2025 - permalink -
    - https://www.rsaconference.com/Library/blog/bens-book-of-the-month-review-of-a-vulnerable-system
    book computer security
  • Computer Security and the Internet: Tools and Jewels from Malware to Bitcoin
    Interesting book by Paul C. van Oorschot, recommended by Rik Farrow on the TUHS mailing list https://www.tuhs.org/pipermail/tuhs/2025-May/031832.html
    Mon May 5 07:17:33 2025 - permalink -
    - https://people.scs.carleton.ca/~paulv/toolsjewels.html
    book computer cryptography security
  • Execute Emacs Lisp in Common Lisp
    The system provides a dedicated package EL (EMACS-LISP), and some definitions.
    Found on the Emacs Wiki https://www.cliki.net/el
    See also https://framagit.org/akater/lisp-primes-for-trickontology
    Thu May 1 21:31:15 2025 - permalink -
    - https://framagit.org/akater/cl-el
    common-lisp Emacs Lisp org-mode
  • Understanding the Dynamic Module System of GNU Emacs
    Found on Sacha Chua's blog https://sachachua.com/blog/2025/04/2025-04-21-emacs-news/
    Tue Apr 29 11:42:36 2025 - permalink -
    - https://www.phimulambda.org/blog/emacs-dynamic-module.html
    C Emacs programming reading
  • Emacs for Everything
    Found on the Irreal blog https://irreal.org/blog/?p=12924
    See also https://joshblais.com/posts/whats-on-my-phone-2025/ and https://joshblais.com/posts/gnu-stow-is-the-way-to-manage-dotfiles/, https://joshblais.com/posts/zen-browser/, https://joshblais.com/posts/how-to-integrate-org-mode-and-google-calendar/
    Tue Apr 29 11:28:41 2025 - permalink -
    - https://joshblais.com/posts/emacs-for-everything/#the-top
    blog Emacs reading
  • The Zen of Task Management with Org - Bastien Guerry
    Found on the irreal blog https://irreal.org/blog/?p=12928
    Tue Apr 29 11:23:02 2025 - permalink -
    - https://bzg.fr/en/the-zen-of-task-management-with-org/
    Emacs org-mode reading
  • AIO-CM4-101 | Chipsee All-In-One desktop computer based on Raspberry Pi CM4.
    Found on Lars Ingebritsen's blog https://lars.ingebrigtsen.no/2023/07/19/raspberries-screens/
    Tue Apr 29 11:16:52 2025 - permalink -
    - https://chipsee.com/product/aio-cm4-101/
    computer hardware Linux pi Raspberry π
  • Perplexingly Book-Learned Emacs – Random Thoughts
    Great quote: "LLMs are plagiarism machines that use all of the world’s energy".  Found via Sacha Chua's blog https://sachachua.com/blog/2025/04/2025-04-21-emacs-news/
    Tue Apr 29 10:49:30 2025 - permalink -
    - https://lars.ingebrigtsen.no/2025/04/17/perplexingly-book-learned-emacs/
    blog book emacs reading
  • Approximations for the Factorial Function by Peter Luschny
    Found on the MoHP forum https://www.hpmuseum.org/forum/thread-23365-post-202412.html#pid202412
    See also the interesting http://www.luschny.de/math/zeta/The-Bernoulli-Manifesto.html which convinced Donald Knuth to correct the definition of the Bernoulli number B_1 in his book Concrete Mathematics.
    The index http://www.luschny.de/math/index.htm gives a good overview (in german).
    Mon Apr 14 17:13:58 2025 - permalink -
    - http://www.luschny.de/math/factorial/approx/SimpleCases.html
    algorithm mathematics numerical
  • HP Plus RPN Calculator Comparison Table
    Found on the MoHP forum
    Sat Apr 12 15:08:25 2025 - permalink -
    - https://sites.google.com/view/hp-plus-calculator-comparison/home
    calculator Hewlett Packard reading simulator
  • Keycloak - Open Source Identity and Access Management
    Found on the Spritely institute forum https://community.spritely.institute/t/step-one-identity/615/3
    Thu Apr 10 18:50:36 2025 - permalink -
    - https://www.keycloak.org/
    authentication FOSS Java lic:apache2 software tool
  • GitHub - justinethier/cyclone: :cyclone: A brand-new compiler that allows practical application development using R7RS Scheme. We provide modern features and a stable system capable of generating fast native binaries.
    Found via the Larceny benchmarks https://larcenists.org/benchmarks2017.html
    Thu Apr 10 15:53:50 2025 - permalink -
    - https://github.com/justinethier/cyclone
    compiler FOSS lic:MIT Lisp Scheme software
  • Why S7 Scheme? — Scheme For Max 0.1 documentation
    Documentation for the S7 scheme interpreter, which can be found on https://ccrma.stanford.edu/software/snd/snd/s7.html
    Thu Apr 10 15:39:05 2025 - permalink -
    - https://iainctduncan.github.io/scheme-for-max-docs/s7.html
    FOSS lic:BSD programming Scheme software
  • Blogging minus the yucky bits of the modern web
    Found via Sacha Chua's blog https://lmno.lol/alvaro/journelly-vs-emacs-why-not-both
    Wed Apr 9 16:46:30 2025 - permalink -
    - https://lmno.lol/alvaro/blogging-minus-the-yucky-bits-of-modern-web
    blog Emacs
  • Goodbye setq, hello setopt! | Emacs Redux
    I shall change my Emacs settings to use setopt instead of setq, but consider the places where Emacs versions older than 29 are used.
    See https://www.reddit.com/r/emacs/comments/178em7u/why_was_setopt_introduced_in_emacs_29/?rdt=39547 for some background information.
    So conditionally defining setopt to customize-set-variable on older Emacsen might be a way to unify my setup files.
    Wed Apr 9 11:43:38 2025 - permalink -
    - https://emacsredux.com/blog/2025/04/06/goodbye-setq-hello-setopt/
    Emacs TODO
  • Joy-IT USB-Multimeter JT-UM120, Auswertung über PC-Software | Messtechnik
    Found via the Raspberry π article https://www.raspberrypi.com/news/raspberry-pi-45w-usb-c-power-supply-on-sale-now-at-15/
    Mon Apr 7 11:01:06 2025 - permalink -
    - https://de.elv.com/p/joy-it-usb-multimeter-jt-um120-auswertung-ueber-pc-software-P253739/?gad_source=5&gclid=EAIaIQobChMIhu-PkcfFjAMVcKSDBx05My4gEAQYASABEgK2QfD_BwE
    electronics hardware USB
  • GitHub - slewsys/ed: The Unix line editor
    Branch of GNU ed maintained by its original author Andrew L. Moore.
    Found via https://lists.gnu.org/archive/html/bug-ed/2025-01/msg00003.html
    Thu Apr 3 19:50:24 2025 - permalink -
    - https://github.com/slewsys/ed
    editor FOSS GNU Unix
  • Detailed Information about the Voyager spacecraft
    Sat Mar 22 14:41:36 2025 - permalink -
    - https://www.bernd-leitenberger.de/voyager-sonde.shtml
    german reading science space
  • My static website is generated from Org Mode, and I'm quite pleased with how it turned out : r/emacs
    Found via Sacha Chua's blog https://sachachua.com/blog/2025/03/2025-03-10-emacs-news/
    The site (in romanian) can be seen on https://parsec.ro/. See also Josep Bigorra's blog https://jointhefreeworld.org/ and Marcin Borkowski's
    https://mbork.pl/2023-07-22_Org_Clive_-_a_new_Org-mode-based_blogging_engine
    Mon Mar 17 15:23:58 2025 - permalink -
    - https://www.reddit.com/r/emacs/comments/1j7febh/my_static_website_is_generated_from_org_mode_and/?rdt=34101
    blog design Emacs org-mode
  • A museum of all things computational: mechanical, mainframe, mini, micro
    Forum about retrocomputing, found via a link on Norbert Landsteiner's site https://masswerk.at/lounge.php
    https://retrocomputingforum.com/t/some-materials-on-early-c-and-the-history-of-c/3016 looks interesting.
    Sun Mar 16 19:18:17 2025 - permalink -
    - https://retrocomputingforum.com/
    C computer history language programming reading TODO
  • Mailüfterl emulator
    The emulator can be used on https://norbertkehrer.github.io/mailuefterl/mailuefterl.html, information on the Mailüfterl computer can be found on
    https://norbertkehrer.github.io/mailuefterl.html
    See the blog entries "Floating Point Library for the Mailuefterl Computer and More Original Mailuefterl Programs
    Thursday, August 31, 2017" and
    "Mailuefterl Emulator in JavaScript
    Monday, July 10, 2017" on https://norbertkehrer.github.io/
    Thu Mar 13 16:31:05 2025 - permalink -
    - https://github.com/norbertkehrer/norbertkehrer.github.io/tree/master/mailuefterl
    computer history JavaScript on-line
  • Lisp Machines
    Blog about emulators of Lisp machines. Found via a link on the computer history wiki https://gunkies.org/wiki/LISP_machine
    Wed Mar 12 08:00:55 2025 - permalink -
    - https://lisp-machine.org/
    blog hardware Lisp software
  • Zadoff–Chu sequence
    "A complex-valued mathematical sequence which, when applied to a signal, gives rise to a new signal of constant amplitude."
    It is not clear what is meant by "applied to" here.
    Wed Mar 12 08:00:03 2025 - permalink -
    - https://en.m.wikipedia.org/wiki/Zadoff%E2%80%93Chu_sequence
    signal-processing TODO
  • [TUHS] What would early alternatives to C have been?
    Shell scripts from Rob Pike to show operator precedence in C and Go.
    Mon Mar 10 11:30:04 2025 - permalink -
    - https://www.tuhs.org/pipermail/tuhs/2025-March/031585.html
    C Go software tool
  • A standard library for modeling satellite orbits on a microcomputer/ : Beutel, Kenneth L. : Free Download, Borrow, and Streaming : Internet Archive
    Kenneth L. Beutel's master thesis, Naval Postgraduate School, 1988-03.
    Found via the post https://www.hpmuseum.org/forum/thread-23225.html on the MoHP forum.
    Fri Mar 7 12:15:45 2025 - permalink -
    - https://archive.org/details/standardlibraryf00beut/page/62/mode/2up?view=theater
    C physics software space
  • [TUHS] DCJ-11 processor with 20k FPGA
    Start of a thread on the TUHS mailing list mentioning the japanese project https://github.com/ryomuk/TangNanoDCJ11MEM/tree/main
    Memory system and UART implemented on Tang Nano 20K FPGA for DEC DCJ11 PDP-11 Processor.
    Thu Mar 6 12:41:13 2025 - permalink -
    - https://www.tuhs.org/pipermail/tuhs/2025-March/031458.html
    DEC FPGA hardware pdp-11
  • Vinix is an effort to write a modern, fast, and useful operating system in the V programming language.
    Found via the message https://www.tuhs.org/pipermail/tuhs/2025-March/031472.html on the TUHS mailing list.
    See https://vlang.io/ for the V programming language. Some other new programming languages are mentioned on
    https://www.tuhs.org/pipermail/tuhs/2025-March/031487.html
    Sun Mar 2 22:05:36 2025 - permalink -
    - https://github.com/vlang/vinix
    language lic:GPL2 operating-system programming V
  • Test Set for IVP Solvers
    "Both engineers and computational scientists alike will benefit greatly from having a standard test set for Initial Value Problems (IVPs) which includes documentation of the test problems, experimental results from a number of proven solvers, and Fortran subroutines providing a common interface to the defining problem functions. Engineers will be able to see at a glance which methods will be most effective for their class of problems. Researchers will be able to compare their new methods with the results of existing ones without incurring additional programming workload; they will have a reference with which their colleagues are familiar. This test set tries to fulfill these demands and tries to set a standard for IVP solver testing."
    Found on John Butcher's page https://www.jcbutcher.com/rkclub
    Fri Feb 28 08:23:58 2025 - permalink -
    - https://archimede.uniba.it/~testset/testsetivpsolvers/
    algorithm mathematics numerical software
  • EmacsWiki: Sticky Modifiers Android
    Android 4.1 an app can provide additional keyboard layouts via Key Character Map files. Since then, it’s possible to customize a keyboard layout without root access by installing an app that contains required layout.
    Wed Feb 26 15:59:07 2025 - permalink -
    - https://www.emacswiki.org/emacs/StickyModifiersAndroid
    Android Emacs key-binding TODO
  • KM3NeT - opens a new window on our universe
    "KM3NeT is a research infrastructure housing the next generation neutrino telescopes. Once completed, the telescopes will have detector volumes between megaton and several cubic kilometres of clear sea water. Located in the deepest seas of the Mediterranean, KM3NeT will open a new window on our Universe, but also contribute to the research of the properties of the elusive neutrino particles. With the ARCA telescope, KM3NeT scientists will search for neutrinos from distant astrophysical sources such as supernovae, gamma ray bursters or colliding stars. The ORCA telescope is the instrument for KM3NeT scientists studying neutrino properties exploiting neutrinos generated in the Earth's atmosphere. Arrays of thousands of optical sensors will detect the faint light in the deep sea from charged particles originating from collisions of the neutrinos and the Earth. The facility will also house instrumentation for Earth and Sea sciences for long-term and on-line monitoring of the deep sea environment and the sea bottom at depth of several kilometers."
    See https://www.km3net.org/km3net-detects-the-highest-energy-neutrino-ever-observed/ for a recent observation.
    Found via https://xkcd.com/3053
    Fri Feb 21 13:17:08 2025 - permalink -
    - https://www.km3net.org/
    astronomy for:mp physics
  • Better dates & times for Python
    Found on the Sage site https://doc.sagemath.org/html/en/reference/spkg/
    Might be useful for post-processing BE-Rb measurements.
    Mon Feb 17 18:50:33 2025 - permalink -
    - https://pypi.org/project/arrow/
    FOSS lic:Apache Python software time
  • http://www.call-with-current-continuation.org/rants/qc-as-a-field-is-bs.txt
    A source for the statement "The actual number of gates needed to factor a
    n-bit number is 72 * n^3; so for 15, it's 4 bits, 4608 gates; not happening any
    time soon." would be nice.
    Thu Feb 13 15:40:24 2025 - permalink -
    - http://www.call-with-current-continuation.org/rants/qc-as-a-field-is-bs.txt
    algorithm computing physics quantum
  • Git: pushing to and pulling from multiple remote locations: remote, url and pushurl | AstroFloyd's blog
    Found via the Emacs wiki https://www.emacswiki.org/emacs/AstroFloyd
    Thu Feb 13 15:08:20 2025 - permalink -
    - https://astrofloyd.wordpress.com/2015/05/05/git-pushing-to-and-pulling-from-multiple-remote-locations-remote-url-and-pushurl/
    blog git reference version
  • [9fans] Which acme?
    Links to some editors inspired by plan 9's acme.
    Thu Feb 13 11:00:23 2025 - permalink -
    - https://marc.info/?l=9fans&m=173938038404359&w=2
    editor plan9
  • The Case for Talent Density in -1 to 0
    Found on Ryan Barrett's blog https://snarfed.org/2025-01-29_54565
    Wed Feb 12 16:45:01 2025 - permalink -
    - https://blog.southparkcommons.com/case-for-talent-density-minus-one/
    physics reading science
  • Pace Layering: How Complex Systems Learn and Keep Learning - Long Now
    Found on Ryan Barrett's blog https://snarfed.org/2025-01-29_54565
    Wed Feb 12 16:29:47 2025 - permalink -
    - https://longnow.org/ideas/pace-layers/
    reading science
  • snarfed.org | Ryan Barrett's blog
    Found via the Emacs wiki https://www.emacswiki.org/emacs/Git
    https://snarfed.org/2014-02-09_the-paperless-office-arrived-and-no-one-noticed
    Wed Feb 12 15:12:54 2025 - permalink -
    - https://snarfed.org/
    blog programming reading
  • HP-15C Simulator for Windows, Linux and macOS
    A simulator of the hp15c calculator. Supports data exchange with SwissMicros DM15 models.
    Wed Feb 12 13:04:27 2025 - permalink -
    - https://hp-15c-simulator.de/
    Hewlett lic:GPL3 Packard
  • Pseudo Random Number Generator
    The RAN # function of HP-11C and -15C computes
     x_{i+1}=(33(29⋅2010667⋅x_i+131⋅449⋅641)) mod 10^{10}
    Wed Feb 12 12:55:07 2025 - permalink -
    - https://www.hpmuseum.org/forum/thread-23107-post-199577.html#pid199577
    algorithm Hewlett number Packard random
  • MiSa tea
    Nice tea room in Vienna's 7th district.
    Wed Feb 12 08:23:32 2025 - permalink -
    - https://www.misatea.com/
    makan rumah tea Vienna
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