Tutte’s counterexample to Tait’s conjecture

Tait thought all 3-conn 3-regular planar graphs were Hamiltonian, which would have proven the Four Color Theorem. Tutte provided a counterexample.

After MS passed a law that required age verification on social media platforms, Bluesky was blocked in the state for close to a year.

I guess age verification is on this app now, so… what have yall been up to?

I'm in shock... What are we doing?

Okay, this is my newest very very favorite meme.

New data from @immcouncil.org proves it: Immigrants fuel the economy, paying $651.9 BILLION in taxes and $1.7 TRILLION in spending power!

Check out the data in your state with this interactive tool:
data.americanimmigrationcouncil.org/map-the-impa...

I helped build a government AI system. DOGE fired me, rolled the AI out to the whole agency, and implied the AI can do my job and the jobs of the others they've fired.

It can't. But, what DOGE accidentally revealed about themselves in the process is fascinating. 🧵

Senor Chang's office from Community.

"I'm sorry we went a couple of minutes over today, but some of you come in 5-10 minutes late, so I feel like you owe me." Is that too aggressive?

Weather and climate data shown on this website and countless others are at risk. The National Oceanic and Atmospheric Administration (NOAA) is the U.S. agency responsible for global weather forecasting, hurricane prediction, ocean observation, and many other services vital to public safety. Its satellites, supercomputers, and research teams provide essential data that help us understand our planet and protect lives. On February 27, the new U.S. administration initiated mass firings at NOAA. These actions are unethical and deeply disruptive to the talented scientists and engineers who dedicate themselves to the public good. The firings, along with expected budget cuts, have serious implications for the availability and quality of weather forecasts produced by the United States. They must be reversed immediately. Much of the data on this website is downloaded directly from NOAA's servers. In this environment of uncertainty, access could be disrupted at any time. While I'll strive to keep all features on this website functional and switch to alternative data sources if necessary, some datasets have no substitute if they go offline. If this concerns you, speak up. Share on social media. And if you're in the U.S., contact your representatives. - Cameron

All websites that depend on NOAA data should display something like this.

earth.nullschool.net

I'm sorry to hear this. What a disaster we are.

Is this Musk's math channel?

Did you email? Snail mail?

1. Today the NIH director issued a new directive slashing overhead rates to 15%.

I want to provide some context on what that means and why it matters.

grants.nih.gov/grants/guide...

We're using Canva, and I just found that there's a Latex app that I can use to generate expressions.

The Conference USA schedule is very elegantly done. Here is a graph of the teams that *don't* play each other this year. With this setup, it's impossible for more than 2 teams to go undefeated, and 8-0 team in conference is guaranteed to make the conference championship.

When including titles/abstracts in a conference program, is it okay to have LaTeX snippets? For example, "Proving \sqrt{2} is irrational".

Best news ever! Registration for the 2025 Grading Conference is OPEN! Please join us to promote grading practices focused on equity & authentic learning. Consider submitting an abstract or volunteering! We value your contributions! #gradingreform

Link: www.centerforgradingreform.org/grading-conf...

What are the dimensions of the 1000-piece puzzle that has the fewest boarder pieces?

It kind of feels like it's going to be a long year.

We’re hosting the LA/MS MAA section in February at Belhaven. If you’re in the area, we’d love to have you come by.

Aw man…

We say a divides b iff you can have a rectangular Lego brick with b total studs and a studs along one side.

Ronin A sudoku game played on a chessboard

Chess Sudoku. Cool.

I completed #Ronin #26

www.andrewt.net/puzzles/roni...

If it ain’t broke, fix it until it is. I’ve been there a lot!

Here is another contribution to #genuary #genuary2025 #genuary19 "Op art."

openprocessing.org/sketch/2515924

Most likely to use LinkedIn? I don’t like to judge, but who does that?

Does this help or no?

Tomorrow, 8:00 am, Discrete Math. It’s going to be a banger

Here's the assignment. The printing is specific to Prusa printers, but that's easy to change. You can do most of this on Wolfram Cloud. Exporting to the computer as an stl file might be the only sticking point. drive.google.com/file/d/1uRxq...