Pinned toot

Omg it draws TeX!

@christianp I propose this be called a lullaby sequence.

This sequence is now in the OEIS: oeis.org/A343934
(spoilers!)

I chant integer sequences as lullabies. Soporific for baby, brain exercise for me.
Here's a sequence that I came up with for this afternoon's nap:

1,2,3,2,4,5,4,6,4,7,6,4,8,9,8,10,8,11,10,8,12,8,13,12,8,14,12,8,15,14,12,8,16,17,16,18,16,19,18,16,20,16,21,20,16…

What's next?

Just in time for , a new 3D printed puzzle. Use the 4th (dimension) to solve it!
Video: youtu.be/LG5HUd0hzzo

"I listen to whatever's on the radio" : Decimal.
"Oh cool, you like this too": Binary.
"You might not have heard of it": Hexadecimal.
"I accompany her overtone singing with my hand-carved lute": HEPTAVINTIMAL

homepage.cs.uiowa.edu/~jones/t

The baby has just expelled so much gas that I'm worried about his core temperature

accessibility griping

Someone mentioned the Diagram Center's Poet site as a good place to learn how to do image descriptions.

So I was surprised to see a thumbnail of a flow chart describing the process, linking to a bigger JPG file, whose alt text isn't particularly helpful: "decision_tree_flow_chart_thumb"

poet.diagramcenter.org/when.ht

Recently, I've tried a kind of interactive expert system by using ccg2lambda. If we input some premises and a goal, the system produce some subgoals, and I want to transform that subgoals to readable sentences for human, and then have tried to prove it interactively.

github.com/mynlp/ccg2lambda

Good morning! My name is Colin and I am a mathematician. What can I help you with this week?

UK bin designs - govbins.uk/

Cheeky little dodecahedron made out of a loo roll tube.

New entry!
The fluid mechanics of poohsticks
Article by Julyan H. E. Cartwright and Oreste Piro
In collections: Attention-grabbing titles, Basically physics, Modelling
2019 is the bicentenary of George Gabriel Stokes, who in 1851 described the drag - Stokes drag - on a body moving immersed in a fluid, and 2020 is the centenary of Christopher Robin Milne, for whom the game of poohsticks was invented; his...
URL: arxiv.org/abs/2104.03056v1
PDF: arxiv.org/pdf/2104.03056v1

New entry!
The best known packings of equal circles in a square
Web page by Eckard Specht
In collections: Geometry, Lists and catalogues
URL: hydra.nat.uni-magdeburg.de/pac

Related, very exciting: a full Jupyter notebook including #Python and Numpy and math libs running *entirely* in browser—no server.

github.com/jtpio/jupyterlite

They compiled the Python runtime plus and Numpy and FORTRAN libs to #WebAssembly. It all runs in your browser.

This is kind of the opposite route from Gitpod, whom you go to to reduce the burden of server config and management. With things like #JupyterLite, you minimize build/config problems *and* keep your computers.

I remember seeing a map of the world (or just Europe?) showing the standard form of the equation of a straight line in different countries.
I can't think what to put into google to find it again. Can anyone help me?

Here's a thing: while writing a document about decolonising our curriculum, Word's "Editor" feature popped up. It gave me a low spelling score because of...

all the foreign names it didn't know!

What a great example to include.

@christianp I did not know about that, but I did know about the uncircled older "CIƆ" numeral instead of M for 1000. One of the theories about the origin of the $$\infty$$ symbol is that it came from this numeral.

How useless is the group $$\langle a,b \mid a^2 = b^2 = (ab)^3 = 1 \rangle$$? It's, like, almost ℤ₃, but with halfway points.