Non Abelian anyon Updated 2025-07-16
Colony (biology) Updated 2025-07-16
It is hard to distinguish between colonies of unicellular organism and multicellular organism as there is a continuum between both depending on how well integrated they cells are.
Elliptic curve point multiplication Updated 2025-07-16
GNU Privacy Guard Updated 2025-07-16
Generate public private key, test encrypt and test decrypt:
# Create your pubkey.
gpg --gen-key
gpg --armor --output pubkey.gpg --export <myemail>
# Encrypt using someone's pubkey.
gpg --import pubkey2.gpg
echo 'hello world' > hello.txt
gpg --output hello.txt.gpg --encrypt --recipient <other-email> hello.txt
# Double check it is not plaintext in the encrypted message.
grep hello hello.txt.gpg
# Decrypt.
gpg --output hello.decrypt.txt --decrypt --recipient <myemail> hello.txt.gpg
diff -u hello.decrypt.txt hello.txt
Stack Exchange Updated 2025-07-16
Rubik's Cube solution Updated 2025-07-16
The algorithmic trick that solves Rubik's Cubes and breaks ciphers by polylog (2022)
Source. Talks about the Meet-in-the-middle algorithm. Stern-Gerlach experiment Updated 2025-07-16
Originally done with (neutral) silver atoms in 1921, but even clearer theoretically was the hydrogen reproduction in 1927 by T. E. Phipps and J. B. Taylor.
The hydrogen experiment was apparently harder to do and the result is less visible, TODO why: physics.stackexchange.com/questions/33021/why-silver-atoms-were-used-in-stern-gerlach-experiment
The Stern-Gerlach Experiment by Educational Services, Inc (1967)
Source. Featuring MIT Professor Jerrold R. Zacharias. Amazing experimental setup demonstration, he takes apart much of the experiment to show what's going on. Compton scattering Updated 2025-07-16
Classic theory predicts that the output frequency must be the same as the input one since the electromagnetic wave makes the electron vibrate with same frequency as itself, which then irradiates further waves.
But the output waves are longer because photons are discrete and energy is proportional to frequency:
The formula is exactly that of two relativistic billiard balls colliding.
Compton Scattering by Compton Scattering (2017)
Source. Experiment with a caesium-137 source.L3.3 Compton Scattering by Barton Zwiebach (2017)
Source. Corollary Updated 2025-07-16
E. Coli K-12 MG1655 gene arcA Updated 2025-07-16
Transcription factor for E. Coli K-12 MG1655 operon thrLABC as shown at biocyc.org/ECOLI/NEW-IMAGE?object=TU0-42486.
Note that this is very close to the "end" of the genome.
Steve Jobs Updated 2025-07-16
Co-founder of Apple.
Is Jobs evil? Is he interesting? Undoubtedly.
www.folklore.org/ProjectView.py?project=Macintosh&characters=Steve%20Jobs has some good anecdotes about him.
Ciro Santilli is especially fond of: Jobs and Wozniak's blue box.
Good quotes:
- "Try to have a nice family life, have fun, save a little money." quote at: Section "Don't be a pussy" and the related Jobs and Wozniak's blue box attitude
- "Steve Jobs Insult Response" on backward design
- Steve Jobs Pixar office design philosophy: great ideas happen from chance meetings on corridors, not in board rooms: officesnapshots.com/2012/07/16/pixar-headquarters-and-the-legacy-of-steve-jobs/
- Steve Jobs' 2005 Stanford Commencement Address
- Here's to the crazy ones: Ciro would like to believe that this is mostly written by Jobs, but apparently it was just written by an advertisement agency. Good job though.
You must watch this: Video "Bill Gates vs Steve Jobs by Epic Rap Battles of History (2012)".
Evil deeds:
- not recognizing own daughter for many years??? en.wikipedia.org/wiki/Lisa_Brennan-Jobs
- lying to Steve Wozniak about the 5000 dollar Atari bonus: web.archive.org/web/20110612071502/http://www.woz.org/letters/general/91.html
- not giving stock to early garage employees: www.businessinsider.com/steve-wozniak-gave-early-apple-employees-10-million-in-stock-2014-9 OK, not a legal obligation. But... love?
Steven H. Simon Updated 2025-07-16
Car Updated 2025-07-16
Carbohydrate Updated 2025-07-16
Carbonate Updated 2025-07-16
Computer museum Updated 2025-07-16
Computer music file format Updated 2025-07-16
Looking for formats that:
- are human readable plaintext files
- can be converted/played as MIDI
- can be converted to sheet music PDFs
- supports basic guitar effects (bends and slides)
EdX Updated 2025-07-16
Harvard University + MIT combo.
As of 2022:Fuck that.
Also, they have an ICP.
November 2023 course search:
- Condensed matter: 4 hits, so not too bad
- quantum field theory: no hits
Model of quantum computing Updated 2025-07-16
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