Christopher Hanusa

Carnival of Maths #241 Welcome to the 241st Carnival of Mathematics, hosted here at the home of the Carnival, The Aperiodical. The Aperiodical is a shared blog written and curated by Katie Steckles (me), Christian Lawson…

Happy to be mentioned in this edition of @carnivalofmaths.bsky.social , thanks Katie Steckles @steckl.es & Aperiodical.
#MathSky #MathsToday #iTeachMath

aperiodical.com/2025/08/carn...

Release MathJax v4.0.0 · mathjax/MathJax This is the long-awaited 4.0.0 release of MathJax, which has been several years in the making. Among the many new features in this release are: Extended font support (11 new fonts) A new default ...

MathJax 4.0 is finally out with
* 11 new fonts,
* line-breaking in-line and display equations,
* accessibility support by default,
* much improved performance using webworkers,
* and support for several new LaTeX packages.

Check out details at github.com/mathjax/Math...
#MathJax #LaTeX #a11y #Math

We’re expanding 7-day library service! 📚

Last year, we fought hard to restore the mayor’s cuts to 7-day service. This year, 11 new branches will have Sunday service thanks to the $2M we proposed and secured.
 
See you on Sundays!

🎥 @nycspeakeradams.bsky.social @cmcarlinarivera.bsky.social

Articles keep ignoring this point - yes, gerrymandering happens. Yes, mid-cycle gerrymandering has happened.

This is different. Rs drew the maps. They want to draw them again. This sets a precedent for those in power to consistently redraw lines to maximize power. Politicians picking voters.

AUTHERS: “.. Companies got out of the habit of responding to government surveys in 2020 when the pandemic gave them more important things to do, and it’s proved habit-forming. .. so it’s not surprising that the numbers need revisions.”

@johnauthers.bsky.social
www.bloomberg.com/opinion/news...

The AI bubble is so big it's propping up the US economy (for now) Plus how American professors are fighting back against the AI onslaught, a backlash over AI models in Vogue, and more.

Analysts show that capital expenditures on AI were so big over the last 6 months they added more to the GDP than *all consumer spending*. That growth is offsetting pain from the tariffs and slow job growth.

So the AI bubble may be propping up the whole US economy. What happens if and when it pops?

How many rust belt cities successfully halted if not reversed their declines because of their universities and academic institutions? Pittsburgh is the poster child, but Baltimore owes a lot to this too. This is going to be a completely man-made disaster for them.

Aperiodical News Roundup – June & July 2025 Here’s a round-up of mathematical news stories that happened in the last couple of months, that we didn’t otherwise cover on the site. Mathematical Discoveries A newly discovered shape …

Aperiodical News Roundup – June & July 2025
Source : The Aperiodical / Katie Steckles

buff.ly/feZNYau
#mathematics #maths #math

Today, former Republican gerrymanders in states like Michigan, Florida, Pennsylvania, Ohio and Virginia have been replaced by much fairer maps, thanks to a mix of favorable court rulings, referendums and legal changes.

Very odd to put Ohio & Florida among “fair” maps.

Ohio’s map was repeatedly struck down by courts as illegal gerrymander, and GOP just ignored the ruling till it ran out the cock.

Florida’s dismantled a Black-majority district that a court had ordered last decade. www.nytimes.com/2025/08/02/u...

Granny Life Community Build Project Granny Life

Math nerds and crafty geeks! You are invited to crochet a granny square based on a cellular automaton for the Granny Life project at www.grannylifecrochet.com.

Your work could end up in an art exhibit in Paris! There are plenty of motifs still available to claim :)

#mathsky #crochet 🧶

We can crack the pillars that prop up Trump’s authoritarian regime by refusing to cooperate or comply with requests, demands, or orders.

Watch the training: youtube.com/live/yqhFZjH...

Join the campaign to teach peaceful disruption tactics to one million Americans: www.mobilize.us/nokings/even...

State Takes $166 Million Step Towards Making ‘Interborough Express’ a Reality The governor on Friday announced a major investment in what would be the city’s first new rail line in nearly 90 years, connecting central Queens to southern Brooklyn.

What’s next for the IBX, the proposed light-rail link between Brooklyn & Queens?

As design & engineering begins, the head of @mta.info sez planned 19-station line is “not just a shiny object like some expansion projects.”

⬇️ NEW story in @thecity.nyc ⬇️ www.thecity.nyc/2025/08/01/i...

Do you think admin wouldn't want you to do a mid-term evaluation to "right the ship" if students have suggestions for improvement?

And same for end-of-term information gathering...

As long as you administer the "official mechanism" anything additional should be fine?

Cool job alert: Green-Wood Cemetery is looking for an artist-in-residence Here's your chance to work among the 'the Plaza Hotel of graveyards'

Here's a cool thing you can do if you're an artist: Be the artist-in-residence at Green-Wood Cemetery for a year nygroove.nyc/green-wood-c...

🌧️ NYC would be much better prepared for massive downpours if we had rain gardens and bioswales on every flood-prone corner.

Another reason why we need @cmjuliewon.bsky.social's universal daylighting bill! Public space should be for the public benefit: preventing floods.

It's a case of asking the right questions. If you just use the standard instrument that is less helpful than a tailored version. Also I have found asking students to write letters to future students help them crystallize the most useful and challenging parts of the course.

Just a few minutes into One Million Rising's training, the Zoom room hits its max of 20K logins (!). But there are livestreams, including on YT: youtube.com/live/yqhFZjHIz-o

Still thinking of applying to QC for Fall 2025? Join us on Direct Admission Days, where you can receive same-day admissions support for the upcoming semester.

🗓️ 8/4 and 8/6
📍 Office of Undergraduate Admissions, Jefferson Hall
⏰ 9 am-3 pm
Details: www.qc.cuny.edu/admissions/d...

OEIS A297497: Triangle T(n,k) (n>=0, 0<=k<=n): use T(n,k)=T(n,k-1)+T(n-1,k-1) rule except left edge is the sequence read by rows, initial values are T(0,0)=0, T(1,0)=1.
oeis.org/A297497

Indivisible is doing great work by providing these One Million Rising trainings.

Introducing assessment ideas like *authoritarian breakthrough* to thousands of people at a time will be essential in cultivating non-cooperation that is not only massive in scale but coordinated.

Hope to see you there

Nice collection!

STEPSON: I feel like we’re on a quest to Mordor.
ME: Right? Ok, you’re my tenant now. You got a pen?
STEPSON: No?
ME: I don’t have a pen.
STEPSON: WAIT! I saw one!
STEPSON leaves car, scours parking lot, and returns with a dusty purple gel pen that has seen better days.

"I need a fresh color palette." Have you tried math?

Define custom colors in Desmos using HSV or RGB color functions, and use variables and sliders to get just the right look. 🎨

Learn more: help.desmos.com/hc/en-us/art...
#mathsky #iteachmath #mathart

And it's not even compatible with itself over all the ways it can be installed!!!

🎉🎉🎉🎉🎉🎉

The Real Reason for Zohran’s Success Should Rattle National Democrats Exclusive internal campaign data on the reach of Mamdani’s viral videos illustrates that he gets modern messaging in ways other Democrats just don’t.

Remarkable: Zohran Mamdani's video about returning to Uganda racked up 4.5 million views on Instagram, 56% among non-followers, per data given to me.

He is forging a new answer to Dems' digital woes. I talked to his advisers in depth about it. Fascinating. 1/

(link)
newrepublic.com/article/1984...

This Saturday, get ready for the biggest Manhattan Summer Streets yet! On August 2, 9, and 16, you can walk or bike the entire length of the island!

YouTube video by TEDx Talks Tech Promised Everything. Did it deliver? | Scott Hanselman | TEDxPortland

I just wanted to say, I’m probably more proud of this Ted talk than just about anything I’ve ever done so I’m gonna be absolutely useless for the next couple of weeks as I promote the shit out of this because I want you to watch it because it matters in the moment we are in youtu.be/dVG8W-0p6vg

Potluck announcement indicating postponed

Potluck announcement with new date: Sunday, August 3rd | 12-3pm

Due to today’s 🌧 forecast, our picnic is POSTPONED.

Join us for our family-friendly potluck picnic in the park NEXT Sunday 🌳🚴‍♂️🤸🏻‍♀️🍒🫐🍉😎

📅 Sunday, 8/3
🕐 12-3 PM
📍 The Overlook at Forest Park (80-30 Park Lane, Kew Gardens, NY 11415)

➡️ RSVP at bit.ly/cquidpotluck

And yet the same poll has the 2026 generic congressional ballot at D+3, so that high disapproval is coming entirely from partisan Democrats themselves. If you've ever wanted to challenge an ineffective Democratic incumbent, you're not going to have a better opportunity than next year.