Double bond Updated 2025-07-16
Inner source Updated 2025-07-16
If you are going to do closed source, at least do it like this.
Basically the opposite of need to know for software.
E. Coli K-12 Updated 2025-07-16
Why. Why. Why is there no limit to how much I can help, but there is a limit to how many thanks I can get?
At most, limit it to a single answer to avoid highly publicized events, e.g. an answer being shared on Reddit. But across answers? It makes no sense.
The two ways main ways to overcome this limit are the 15 point answer accept reputation and bounties.
200 reputation per day works out 73k a year BTW.
Newspaper Updated 2025-09-09
Forsyth-Edwards Notation Updated 2025-07-16
The cool thing about this notation is that is showed to Ciro Santilli that there is more state to a chess game than just the board itself! Notably:
  • whose move it is next
  • castling availability
  • en passant availability
plus some other boring draw rules counters.
Two-photon excitation microscopy Updated 2025-07-16
Video 1.
Two Photon Microscopy by Nemonic NeuroNex (2019)
Source. Shows a prototype of a two-photon electron microscope on an optical table, and describes it in good detail, well done.
Erhu piece Updated 2025-07-16
Galilean moons Updated 2025-07-16
Can you imagine when those guys started to see moons in other planets? They must have shat bricks. What better evidence can you have that the geocentric model could be wrong?
Erik Finman thinks school is broken Updated 2025-07-16
archive.ph/fYpC1
The way the education system is structured now, I wouldn't recommend it, It doesn't work for anyone. I would recommend the Internet, which is all free. You can learn a million times more off YouTube and Wikipedia.
Devanagari Updated 2025-07-16
Here are some exceptionally interesting text inscriptions that are not mentioned in other sections:
TODO:
  • 55a5d0c09ad5535711d649fdab394add3bb6e50cc2c49920cf0cb758ff0b69e8 via cryptograffiti.info contains what seems to be a ASCII table tracking train movements? Maybe from a train lover? But also curiously, it is GPG signed:
    -----BEGIN PGP SIGNED MESSAGE-----
    Hash: SHA256
    
    time    direction    # covered    #uncovered    notes
    11/11/2013 6:31pm    E    4    1    csx 6243
    11/19/2013 4:46pm    E    3    0    csx 6215
    11/19/2013 5:44pm    W    4    0    Amtrak
    11/21/2013 4:05pm    E    0    0    csx 6206
    Interesting.
    86c1b7bd8bbdd8903355a8f6a408616621fd2ea4321b9aced778f388afe0b244 has something similar.
  • cc38d740dc1999a803dbba0c48a82af994861e0767f6bcd7d6ceebe4e66b4678 via cryptograffiti.info contains a pipe dream technical proposal idea entitled:
    Attack-resistant decentralized time and location services via Nakamoto chain consensus.
  • 5d9ef37e6beea5342ce1cb2681a7b465a542394aeda2b1e1fed00fab44b17833 via cryptograffiti.info contains a test of every character from 0 to 255, e.g. some of the readable characters are:
    65:              A
    66:              B
    67:              C
    68:              D
    69:              E
    70:              F
    71:              G
    72:              H
    73:              I
    74:              J
    75:              K
    76:              L
    77:              M
    d5f6614b4e3bdc611c8ad15f158163e48e1a1298ea5f5f9832ada8db6e2dd4b2 has something similar.
  • 0f96b2f6e3c4f4b6319efbafd2e7148d507b260b4d7914766e79aec7d9ac9574 via cryptograffiti.info has a long-ish message that looks like a software release note, not sure what it is about:
    Truecrypt 7.1a
    ==============
    
    2015-07-19
    
    I am setting the filesizes and checksums of the last Truecrypt version (7.1a) in stone.
  • 206a0edb11ba0677248709d9bc5210b35e8a03710d9bb19c6f1e4e254bf21f5e via cryptograffiti.info has a letter to AGI:While cute, the author clearly underestimates the magnitude of singularity!
  • cdbeb50c11b788fa4e67e00fb2e2607b129492a4a38bed0a9e31443a42e272a4 via cryptograffiti.info contains a semi-philosophical text that starts with:
    When in the course of cosmic evolution,
  • b55c3312ceeeb4ab422b658f5f4d5884775a498ddde6a527fca7b67752e1b044 via cryptograffiti.info contains some wedding vows starting with and GPG-signed:
    Zachary Thomas Smith,
    I give myself - Jenna Marie Vaziri - to you, to be your wife, your best friend, and your home - just as you are to me.
  • 3620da027df2e2e34ac9abe0123dcd7217fc5b8dec9921cbae258c640c7a6591 via cryptograffiti.info contains a neatly formatted UTF-8 ad with a link to: bitcointalk.org/index.php?topic=1033773.0
    ╭───────────────────────────────────────────────────────────────────────────╮
    │    B&C EXCHANGE:  A decentralized cryptocurrency exchange for everyone    │
    ┝━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┥
    │             https://bitcointalk.org/index.php?topic=1033773.0             │
    │                                                                           │
    │ B&C Exchange will be an open-source decentralized exchange that completes │
    │ cryptocurrency  trades between  users by utilizing multisig signers  that │
    │ compete for blockchain  rewards based on their effectiveness and honesty. │
    ├╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┤
    ┆          ▷▶▷▶    There are 10 days  left in the auction!    ◀◁◀◁          ┆
    ╰───────────────────────────────────────────────────────────────────────────
    The thread links to bcexchange.org/ which is dead as of 2024.
    f93e128c59b357ca2d1b256eb1c4d991c488da460527ca0898dc789210073bd2 has another one:
    ┏━━ UTF-8 is coming to CryptoGraffiti.info!!! ━━┓
    ┠╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌╌┨
    ┃ I love you.                          Σ΄αγαπώ. ┃
    ┃               Ma armastan sind.               ┃
    ┃ Aš tave myliu.               Mä rakastan sua. ┃
    ┃                 Я люблю тебя.                 ┃
    ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
  • 140562ceb42fc8943fa52ccc0ddbb11ca2d88dae9b5240d7a4b46864538c515aTODO understand this part:
    The "Address" you see above is more than a bitcoin address? For example, the web address to this
    
    reddit thread is: https://www.reddit.com/r/Bitcoin/comments/3cdxep/reddit_on_the_blockchain_test/
    
    Which converts to the bitcoin address of:
    12uPLj6PSz6ULnZi1jXo7Ch1Je1SuqxRcE
    
    How? Because any text, like a web address, can be converted into a bitcoin address.
    
    www.reddit.com = 1MZCEUCtyJCDkNSLYbPVvAgf9V3CsEw3t
    www.google.com = 1JEZLaFciACHDEMVd3RXZzPmGcsWEwYQLr
    www.voat.com = 1JvCp9X5Bvvt2kz3EqP5ppkzX62sKgKbqr
    www.paystamper.com = 14wgeaWz2rKax8iVSWNFSrSsAYNeGyNdkt
    Duriel@paystamper.com = 1HcuhfTAiQCt6KdMG2rZLXsTcKYj9nLDhS
  • 940f41f5cc96182c1392c239d7570f94bd524e141ca0a88fdb154bd817049f83.bin via cryptograffiti.info contains some links to profiles controlled by a "Daniel Michael Abraham" www.linkedin.com/in/daniel-abraham-9432a798/. Other messages by him:
    • 3d39024fa0cddfc529d4a41501df7a076f5bcf9a7a43f88f54a717e6df7f4770
    • 088ebf7ffdef96b8fcac7eafa2ff6d04f295ea24f159e1ce4b7d47ed7b91b1f9

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