In topology, we were talking about the Euler characteristic. There’s a theorem that if a sphere is tiled by hexagons and pentagons with three meeting at every corner, then there must be exactly 12 pentagons (like a soccer ball). I brought in this golf ball as an example. Do you see a pentagon?
New York City, we are so back! 🗽
Mark your calendars for the next dev/ai/nyc, our monthly gathering exploring the intersection of open source & applied AI.
This time around, we have a fireside chat from @hilarymason.com, CEO of @hiddendoor.co, and Jesse Friedman, head of WP Cloud. Don’t miss it!
Thanks for sharing your on-point description of the preparation involved in getting ready for an exhibition!
If Dems retake either house, they must launch an investigation into this. There's no easier way to highlight the corruption of this era and to establish that Dems are committed to fighting it.
Pretty sure @wyden.senate.gov and Maxine Waters would be the chairs to do it.
Students from colleges outside of QC are welcome to take summer session courses here!
📚 @CUNY.edu students: get an ePermit through your home school’s registrar
🖥️ Students outside of CUNY: fill out a Non-Degree Application
www.qc.cuny.edu/summer
Awesome work all around.
A particular preference for names from the end of the alphabet!
🌈🏒🎀 Day 0
This thread updates daily.
A headline reads: "Times Exclusive: The Inside Story of 5 Days That Remade the Supreme Court. Secret memos obtained by The New York Times illuminate the origins of the court’s now-routine 'shadow docket' rulings on presidential power."
Confidential memos by Supreme Court justices, obtained by The New York Times, show how they decided to bypass time-tested procedures and create the modern “shadow docket,” a rushed and secretive new way of doing business. www.nytimes.com/2026/04/18/u...
Western Queens’ favorite gifts/home goods/stationery/fun finds shop Lockwood is having its huge new Astoria flagship’s grand opening today (Broadway near Crescent) — the shop is spectacular and full of goodies and MR. MET is here
this looks like a damn zine fair flyer
This was absolutely one of the most striking things about moving from suburban Atlanta to Manhattan when I was in my 20s. I remember being back home for a visit and, like, struggling to articulate to my parents just how different—and how much better and friendlier—the world felt on foot.
Mamdani hasn't had time to really think about all that space he now has, because he spends most of his time at City Hall and around New York City. He tries to keep a semblance of his old life by getting around the city on foot, by bike or train. "If you spend every single day driving around in a tinted window security detail, you will have a very specific view of the city," he said. "You actually meet other New Yorkers and you break out of the bubble that so many have come to expect of politics, where politicians only seem to be spending time with other politicians or the people who donated to make them politicians."
I'd say that this applies to anyone traveling in a car in any city. Being in a car versus walking, riding, or taking transit fundamentally changes how you view a place and your relationship to it. I wish more leaders set this kind of example.
www.npr.org/2026/04/16/n...
Thrilled to report that Queens CB6 voted unanimously to pass our resolution for a district-wide slow zone reducing the speed limit to 20mph - 15mph in school zones - on all qualifying streets under #SammysLaw.
@nyc-dot.bsky.social @zohrankmamdani.bsky.social
#walknyc #bikenyc
Amazing
OEIS triangle for sequence A103919.
OEIS sequence A103919 by Wolfdieter Lang (March 2005).
(Even terms are drawn as dark hexagons and odd terms are drawn as light hexagons.)
Congratulations!
Are you a new(ish) math professor? Know someone who is? MAA Project NExT is a fantastic way to jumpstart a career in higher ed math. Applications are due today!
maa.org/maa-project-...
I agree it should be done, especially by co.panies such as Home Depot, Lowes, Target? Walmart, etc.
That would represent a huge generating capacity.
nyc.streetsblog.org/2026/04/14/e...
Again: for any big liberal donor who wants to funnel millions into fixing this country's politics, the ROI on buying any struggling paper and simply tasking it with doing real reporting on local news is vastly higher than the same $$ given to some group that does mass ad buys every election year.
Beautiful!
The Tagliamento, Friuli–Venezia Giulia, Italy, is a braided river that flows from the Alps to the Adriatic Sea. It is regarded as the last morphologically intact river in the Alpine region, retaining its natural hydromorphological dynamics and sediment transport.
Even if you're a PreTeXtBook.org power user like @chrissysafranski.bsky.social (she'll hate that I called her that lol), here's a neat trick: sustaining subscribers to pretext.plus can generate share links that include source code, perfect for sharing code snippets:
pretext.plus/projects/c80...
A note pinned to a bulletin board that reads: Today, I won’t challenge anyone else’s behavior unless I’m also willing to be part of the solution
Notes left behind by my partner who was a deep thinker
Screenshot of the endorsements section from David Orkin's campaign website ( david4queens.com/#endorsements ). -- At the top are two rows of organizational endorsements. From first row to second, and left to right: • New York City Democratic Socialists of America (NYC-DSA) • New York Working Families Party (NY WFP) • DRUM Beats • CUFFH Action • Make the Road Action—New York • TREEage • Tenants PAC • Hindus for Human Rights Action Below the organizational endorsements are two rows of endorsements by elected public officials (listed from top row to bottom, left to right): • Alexa Avilés, NYC Council Member • Tiffany Cabán, NYC Council Member • Chi Ossé, NYC Council Member • Claire Valdez, NYS Assembly Member • Julia Salazar, NYS Senator • Jabari Brisport, NYS Senator • Shahana Hanif, NYC Council Member • Emily Gallagher, NYS Assembly Member • Sarahana Shrestha, NYS Assembly Member • Jennifer Gutiérrez, NYC Council Member • Sandy Nurse, NYC Council Member
In AD-38 (which includes most of Glendale, Ozone Park, Richmond Hill, Ridgewood and Woodhaven, and parts of South Ozone Park + South Richmond Hill):
The Left is united behind @david4queens.com. If you too are all in for Orkin, you can plug into their field op here:
👉 act.david4queens.com/join-full
Sounds like a reason to have county committee members (and district leaders)! 😉
