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Christopher Hanusa

@mathzorro.bsky.social

950 followers 620 following 470 posts

Mathematician - Math Educator - Mathematical Artist - and loving it! Visit my @hanusadesign.com profile for #mathjewelry | #mtbos | #mathart | #plotter | #transit

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Christopher Hanusa @mathzorro.bsky.social · Dec 3

I am excited to announce the opening of the Mathematical Art Digital Exhibition at Queens College. The exhibition features the work of 27 mathematical artists representing 10+ countries. View the exhibition at math.qc.cuny.edu/made-gallery and see the artwork, artist bios, and links to learn more.

A page announcing the Mathematical Art Digital Exhibition at Queens College, which was developed to inspire, inform, and engage students mathematically at Queens College and worldwide.

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Reposted by Christopher Hanusa

Sophie Huiberts @sophie.huiberts.me · 2d

check out this quanta article about our recent work! Eleon will present it at @focs2025.bsky.social this december

Quanta Magazine @quantamagazine.bsky.social · 2d

For nearly 80 years, an algorithm called the simplex method has been one of the most widely used tools for when a logistical decision needs to be made under complex constraints. A new update makes it faster than ever. www.quantamagazine.org/researchers-...

Researchers Discover the Optimal Way To Optimize | Quanta Magazine

The leading approach to the simplex method, a widely used technique for balancing complex logistical constraints, can’t get any better.

www.quantamagazine.org

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Reposted by Christopher Hanusa

benjamin dickman @benjamindickman.bsky.social · 3d

[digging through my twittxr archives]

do you want non-routine quadratic problems?

here are 20 💌:
www.desmos.com/calculator/d...

cc. #iTeachMath #MathSky #EduSky #AlgebraSky

Particular Parabola Problems

www.desmos.com

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Christopher Hanusa @mathzorro.bsky.social · 1d

102, how rare!

I completed #Celtix 126 using 102 walls.

www.andrewt.net/puzzles/celt...

Celtix

A puzzle based on Celtic knots

www.andrewt.net

Reposted by Christopher Hanusa

Streetsblog NYC @nyc.streetsblog.org · 1d

A new app allows you to snap a photo of a streetscape defect and report it directly to the city and the elected official in that neighborhood — all without having to hunt through the 311 app. nyc.streetsblog.org/2025/10/14/t...

Tuesday's Headlines: Wild on the Walk Side Edition - Streetsblog New York City

Take a picture, save the city. This just in from our friends at CHEKPEDS (which sort of stands for the Clinton-Hell’s Kitchen-Chelsea Coalition for Pedestrian Safety): a new app that you need now…

nyc.streetsblog.org

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Christopher Hanusa @mathzorro.bsky.social · 1d

Amazing!

Christopher Hanusa @mathzorro.bsky.social · 2d

Now I see that's part of the point of the writing.

Christopher Hanusa @mathzorro.bsky.social · 2d

Thanks for sharing this viewpoint. I wish they would exercise some caution and healthy scepticism or else it will grow dangerously outside of our control.

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Christopher Hanusa @mathzorro.bsky.social · 2d

And yet imagine how the sun sets - red/orange skies in the west and darkish blue/purple nighttime sky in the east

a sunset over a body of water with a large red sun in the background

Alt: a sunset over a body of water with a large red sun in the background

media.tenor.com

Reposted by Christopher Hanusa

Mathemarium (LJAD) @mathemarium.bsky.social · 3d

Tétraèdre de Sierpinski fabriqué par les enfants et leurs parents en visite sur le stand de #Maths. Check 👍 #fractale #nice06
#fds2025 #fds #fetedelascience @cnrs-insmi.bsky.social @univcotedazur.bsky.social @cnrscotedazur.bsky.social

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Reposted by Christopher Hanusa

Simon Kuestenmacher @simongerman600.bsky.social · 3d

Now that’s a size-comparison map that I hadn’t seen before: Hawaii 🌺 overlayed on top of the contiguous US shows just how far spread out the Hawaiian islands are. Big geopolitical importance for a lovely corner of the world.

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Reposted by Christopher Hanusa

Leah McElrath @leahmcelrath.bsky.social · 4d

⚠️ USAToday reporter confirms the office in charge of special education funding has been “decimated”:

Zach Schermele
Follow
@ZachSchermele
NEW: The Education Dept. layoffs continued overnight, w/ the main office in charge of special ed funding being
"decimated," as one person described.
"They cut just about everyone that works with IDEA funding," said another.
"I'm not sure how these programs exist moving forward."
10:21 AM • 10/11/25 • 2.1K Views

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Christopher Hanusa @mathzorro.bsky.social · 3d

Flip the rainbow and you get mostly blue again

Reposted by Christopher Hanusa

$fractalkitty.com$

Sophia (she/her) @fractalkitty.com · 3d

Today - I played with Hermite Polynomials on Radial Graph paper:

codepen.io/fractalkitty...

#mathart #mathober #mathober2025 #codepen #p5js #creativeCoding

Orthogonal Polynomial

...

codepen.io

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Reposted by Christopher Hanusa

sarah jeong @sarahjeong.bsky.social · 4d

I have a theory www.theverge.com/policy/79849...

American politics has devolved into shitposting and aura farming

The Frog is owning the president.

www.theverge.com

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Reposted by Christopher Hanusa

lalabote @lalabote.bsky.social · 4d

A day in the life of ICE Air ethnic cleansing operations.
Friday 10 October 2025
0000-0000 UTC
8pm-8pm EDT
5pm-5pm PDT

* (2) Coast Guard C-27s used for ICE.
globe.adsbexchange.com?icao=a2c129,...

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Christopher Hanusa @mathzorro.bsky.social · 4d

What a great example of this visualization! What a peculiar choice of planning!?!

Reposted by Christopher Hanusa

Dave Kung @dtkung.bsky.social · 6d

Always fun to see the amazing people who win. Congrats to mathematician Lauren Williams on winning a MacArther genius grant!

www.macfound.org/fellows/clas...

Lauren K. Williams

Uncovering transformative connections between algebraic combinatorics and problems in other areas of math and physics.

www.macfound.org

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Reposted by Christopher Hanusa

Daily Spurious Correlation 🤖 @dailycorrelation.bsky.social · 5d

Popularity of the 'distracted boyfriend' meme correlates with The number of statisticians in New Jersey (r=0.963)

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Reposted by Christopher Hanusa

Don Moynihan @donmoyn.bsky.social · 5d

Re-upping this piece on news that Vought is firing federal employees:
*Vought lying that shutdowns compel layoffs, never have before.
*Layoffs are a choice, the shutdown is an excuse.
*Comes on top of existing RIFs, will make restoring govt services harder post-shutdown.
substack.com/home/post/p-...

Shutdown hostage taking

Russ Vought's threatens more mass firings; SCOTUS blesses his de facto impoundment

substack.com

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Reposted by Christopher Hanusa

Second Ave. Sagas @2avesag.as · 5d

Senator Addabbo and the MTA are asking for Queens CB 5 residents to chime in with their views on the IBX. Not a lot of pick-up so far and I always worry the NIMBYs will flood the zone on this kind of stuff, particularly since Queens CB5 is home to a bunch of vehement NIMBYs.

IBX Constituent Survey

Share your thoughts on the IBX with Senator Addabbo, the MTA and Community Board 5! See our e-flyer for information about the project. Please do not fill out this form unless you are a constituent.

docs.google.com

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Reposted by Christopher Hanusa

The City University of New York @cuny.edu · 5d

New York State will provide free tuition, fees, books and supplies for adults ages 25-55 who do not already have a college degree and are pursuing an associate degree in a high-demand field. Learn more: cuny.edu/reconnect.

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Reposted by Christopher Hanusa

Greg Sargent @gregsargent.bsky.social · 5d

By contrast, JB Pritzker told me that people should flood the No Kings protests precisely in order to let the American people know that something is deeply amiss.

More Dems should be doing this, to send the message widely that we are in real trouble right now.

newrepublic.com/article/2016...

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Reposted by Christopher Hanusa

Streetopia Upper West Side @streetopia.bsky.social · 5d

“You can’t tell me a parking space at the corner of a street is worth a life.”

Advocates are in front of the district office of @galeabrewer.bsky.social this morning to ask her why she changed her mind and no longer supports universal daylighting in NYC.

A group of people gathered on the sidewalk in front Council Member Gale Brewer’s district office.

A sign held up in front of Gale Brewer’s office that reads “You supported safety, Gale. Don’t turn your back now.”

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Reposted by Christopher Hanusa

American Mathematical Society @amermathsoc.bsky.social · 5d

Deadline for the ICM 2026 Travel Grant Program has been extended to October 20.
U.S.-based graduate student and early career mathematicians are strongly encouraged to apply. With generous funding from the NSF, we are pleased to provide partial travel support. Learn more and apply at: www.ams.org/icm

Announcement for ICM 2026 travel grants available to U.S.-based mathematicians with a call to apply now and city skyline illustration. AMS and NSF Logos.

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Christopher Hanusa @mathzorro.bsky.social · 5d

Don't forget to turn on your blinker before you get to Bermuda so everyone knows which way you are turning.

National Hurricane Center - Atlantic Alerts (UNOFFICIAL) @nhc-atlc.nws-bot.us · 5d

Atlantic Tropical Storm Jerry Advisory Number 12 issued at Fri, 10 Oct 2025 08:52:39 +0000
...FLASH FLOODING THREAT FOR THE LEEWARD ISLANDS CONTINUES AS HEAVY RAINFALL FROM JERRY SPREADS ACROSS THE REGION...
Additional Details Here.

000WTNT35 KNHC 100852TCPAT5 BULLETINTropical Storm Jerry Advisory Number 12NWS National Hurricane Center Miami FL AL102025500 AM AST Fri Oct 10 2025 ...FLASH FLOODING THREAT FOR THE LEEWARD ISLANDS CONTINUES AS HEAVY RAINFALL FROM JERRY SPREADS ACROSS THE REGION... SUMMARY OF 500 AM AST...0900 UTC...INFORMATION----------------------------------------------LOCATION...19.2N 62.5WABOUT 80 MI...130 KM NNE OF THE NORTHERN LEEWARD ISLANDSMAXIMUM SUSTAINED WINDS...50 MPH...85 KM/HPRESENT MOVEMENT...NW OR 315 DEGREES AT 17 MPH...28 KM/HMINIMUM CENTRAL PRESSURE...1007 MB...29.74 INCHES WATCHES AND WARNINGS--------------------CHANGES WITH THIS ADVISORY: The government of Antigua and Barbuda has discontinued the TropicalStorm Warning for Barbuda and Anguilla, as well as the TropicalStorm Watch for Antigua, St. Kitts, Nevis, and Montserrat. SUMMARY OF WATCHES AND WARNINGS IN EFFECT: A Tropical Storm Warning is in effect for...* St. Barthelemy and St. Martin* Sint Maarten* Guadeloupe and the adjacent islands A Tropical Storm Watch is in effect for...* Saba and St. Eustatius A Tropical Storm Warning means that tropical storm conditions areexpected somewhere within the warning area, in this case within thenext several hours. A Tropical Storm Watch means that tropical storm conditions arepossible within the watch area, in this case within the nextseveral hours. For storm information specific to your area, please monitorproducts issued by your national meteorological service. DISCUSSION AND OUTLOOK----------------------At 500 AM AST (0900 UTC), the center of Tropical Storm Jerry was located near latitude 19.2 North, longitude 62.5 West. Jerry is moving toward the northwest near 17 mph (28 km/h). A turn toward the north is expected tonight into Saturday, followed by a northward to north-northeastward motion through the rest of the weekend. On the forecast track, the center of Jerry will continue passing to the north of the Leeward Islands this morning, then move away from the islands later today. Maximum sustained winds are near 50 mph (85 km/h) with higher gusts.Little change in strength is expected today, but slow strengtheningis possible over the weekend.Tropical-storm-force winds extend outward up to 185 miles (295 km) mainly to the east of the center. The estimated minimum central pressure is 1007 mb (29.74 inches). HAZARDS AFFECTING LAND----------------------Key messages for Tropical Storm Jerry can be found in the TropicalCyclone Discussion under AWIPS header MIATCDAT5 and WMO headerWTNT45 KNHC. WIND: Tropical storm conditions, mainly in gusts, are expected in the warning area and are possible in the watch area this morning. RAINFALL: Through today, 4 to 6 inches of rain are expected acrossthe island of Barbuda. Elsewhere across the Leeward and VirginIslands, 2 to 4 inches of rain are expected. This rainfall brings arisk of flash flooding, especially in urban areas and in steepterrain. For portions of Puerto Rico, moisture associated with Jerrycombined with local orographic effects may result in up to 2 to 4inches of rain, with isolated amounts of 6 inches possible. For a complete depiction of forecast rainfall and flash floodingassociated with Jerry, please see the National Weather Service stormtotal rainfall graphic, available athurricanes.gov/graphics_at5.shtml?rainqpf SURF: Swells generated by Jerry are affecting the Leeward Islands,Windward Islands, the Virgin Islands, and Puerto Rico, and arelikely to cause life-threatening surf and rip current conditions.These swells are expected to spread toward the rest of the GreaterAntilles today and tonight. Please consult products from your localweather office for more information. A depiction of rip current risk for the United States, includingPuerto Rico and the U.S. Virgin Islands, can be found at:hurricanes.gov/graphics_at5.shtml?ripCurrents NEXT ADVISORY-------------Next intermediate advisory at 800 AM AST.Next complete advisory at 1100 AM AST. $$Forecaster Reinhart

Tropical Storm Jerry 5-Day Uncertainty Track Image

Tropical Storm Jerry 34-Knot Wind Speed Probabilities