Da viele Gruppen jetzt Tools für Online-Treffen benötigen, haben wir einen Mumble- und einen Jitsi-Meet-Server aufgesetzt den ihr für eure Gruppen-Plena etc. frei verwenden könnt. Schreibt einfach eine Mail an online-plenum@schleuder.0x90.space um Zugang zu bekommen. #corona #coronasolidarität #coronahilfe

New entry!

ComputingLinkages

Article by Andries de Man

In collections: Easily explained, History, Things to make and do, Unusual computers

Analog calculating machines usually contain lots of gears (differentials), cams, ball-and-disc integrators and rack-and-pinions. But would it be possible to construct such calculating machines only using hinged rods? In the first instance, one would think only linear functions could be...

URL: https://sites.google.com/site/calculatinghistory/home/computing-linkages

Entry: https://read.somethingorotherwhatever.com/entry/ComputingLinkages

University presses that have made books and journals open access during the pandemic: https://www.publicbooks.org/public-books-database/

RT @MathsEdIdeas@twitter.com

A little something that may help... 320 Random Acts of Maths: pocket-sized problems, teasers, curios, provocations, inspirations, etc. For downloads, inc. solutions and slides: http://bit.ly/2MkTnFM • #maths #math #MTBoS #iteachmath #mathsathome #MathsEveryoneCanAtHome

🐦🔗: https://twitter.com/MathsEdIdeas/status/1244940414156771328

A variant of the classic 15-puzzle, where the puzzle is coiled around a cylinder. Unlike the original, this version is solvable because of the extra connection between the first and sixteenth squares of the frame. YouTube: https://youtu.be/rfAEgxNEOrQ

What happens when half a cellular automaton runs Conway's Game of Life and the other half runs a rolling version of Rule 30 pushing chaos across the border? https://www.youtube.com/watch?v=IK7nBOLYzdE, via https://news.ycombinator.com/item?id=22723884

I wish I could see a larger scale of time and space to get an idea of how far the effects penetrate. If the boundary emitted gliders at a constant rate they'd collide far away in a form of ballistic annihilation but the boundary junk and glider-collision junk makes it more complicated.

RT @dhh

WHO HAS TIME TO GO GET A BUCKET?! WE ARE TRYING TO EMPTY THE SHIP FROM WATER. JUST TAKE THIS SPOON!

[The internal logic of how ain’t nobody got time to write or read anything long form these days. All we can do is chat or video.]

Take action against #EarnIt: https://tutanota.com/blog/posts/earn-it-barr-encryption/ #Fight4Privacy #Fight4Encryption

3 recent "Did you know?":

... that Chiara Daraio used Newton's cradle to create sound bullets, and ball bearing filled walls to create one-way sound barriers? https://en.wikipedia.org/wiki/Chiara_Daraio

... that a tetrahedron with integer edge lengths, face areas, and volume can be given integer coordinates?

https://en.wikipedia.org/wiki/Heronian_tetrahedron

... that former college basketball star Amy Langville is an expert in ranking systems, and has applied her ranking expertise to basketball bracketology?

https://en.wikipedia.org/wiki/Amy_Langville

Mund- und Datenschutz gehen zusammen.

Wir erweitern unser Angebot, mal schauen wie viele wir schaffen.

Hilft vermutlich in Zukunft auch vor Gesichtserkennung.

Hier gibt es die Nähanleitung:

https://media.essen.de/media/wwwessende/aemter/0115_1/pressereferat/Mund-Nasen-Schutz__Naehanleitung_2020_Feuerwehr_Essen.pdf

Albert #Uderzo left us today... "Astérix" was certainly the first comic I read and his generous curved drawing style had a big impact on my way to draw. Rest in peace.

https://en.wikipedia.org/wiki/Albert_Uderzo

- current Obsession
- Haskell

- current Read
- Wheel of Time

- Queer
- yep

Math Student (BSc + MSc)¹. Sews, codes and draws.

[1] I'ts complicated

Joined Feb 2019