@DissidentKitty you should also definitely *not* try to get your textbooks on Library Genesis, which can be found here http://gen.lib.rus.ec/
@lyliawisteria @interneteh @DissidentKitty the word "cypher" was derived from "sifar" which meant "zero" in Arabic
@lyliawisteria @interneteh @DissidentKitty the Incas were doing crazy sophisticated things with data structures and computation theory before the Colombian exchange. Look up the *quipu*
@bryceyoungquist @DissidentKitty Al Kwarizmi, by the way, was the first exposure any Europeans had to the mathematical concept of “the number zero” and it freaked their fuckin beans. The kingdom of Florence actually banned the use of Arabic numbers to keep merchants from exploiting tax collectors with their sinister “zero”
So, there's this concept of "implicit feudalism" in online communities. Essentially, the vast majority of online communities - from old-school forums, to facebook groups, to large platforms like Twitter and Facebook themselves, even to fediverse instances - they're all run as dictatorships by default. It's built into the software - you'll have a top admin who has full, unconstrained power, they might delegate mods who have some limited powers, and anyone else has to listen to what these dictators and lords tell them. We talk about "federating" here in the fediverse, but each individual community - as far as I'm aware of - is a little dictatorship. A federation of dictatorships is not a free society, anymore than the UN, an international body composed of "liberal democracies" and authoritarian regimes is truly democratic. We need a way to start governing online communities through actual forms of democracy.
boosts++
RT @atulkasbekar@twitter.activitypub.actor
An astrophotographer has clicked an exceptional video, wherein we can feel the rotation of the earth
Using a tracking mount, aligned with North Star, he kept clicking images every 12 seconds for the next 3 hours.
The camera is looking at the same portion of the Milky Way
Fab!
@DissidentKitty along with the work of Heron of Alexandria and the rest of the treasure in the Toledo Library.
@bryceyoungquist @DissidentKitty that book, by the way, would spread across the Arab world into what is now Spain. Sometime in the 12th or 13th century CE it made its way to a young man called Fibonacci, who was influential in spreading it across Europe and reviving the mathematical tradition on the continent which had been dead for well over a millennium.
@DissidentKitty fun trivia: the two words are closely linked
Mohammed Al-Khwarizim was the writer of the book titled On Restoring What Has Been Separated Into Parts. bit of a clunky title, so people truncated it to On Restoring: Al Jabra.
so thinking about things like he did, in the anglosphere, became Al-Khwarizimic
So, yes, there was an Al Gorithm, and his name was Mohammed, and yes, he wrote the book on algebra
@lyliawisteria @DissidentKitty like a third of the stars in the sky have Arabic names. Because guess who discovered them
@DissidentKitty Al-Khwarizmi was, without doubt, one of the greatest mathematicians who ever lived.
@DissidentKitty Algol, zenith ('zamt' originally, followed by some misspellings), nadir (anti-zenith), too.
a bug, not a feature.
Genderless* cyberfae & co. at your service
assigned adult by the inexorable passage of time
don't use he/him or she/her pronouns for any of us without express permission
note that if we ever make you uncomfortable in any way please tell us so we know to stop. we're not always good at figuring these things out on our own