@desmos.com Game/Interactive Challenge is happening for the month of june! Check out more details here: youtube.com/shorts/4cJiG...

I sympathize with the sentiment of this graphic but cringe at the "energy flow" physics. We measure heat ("fuel") and work ("reaches wheels") in the same units, but they're not the same thing. And passengers' share of braking losses shouldn't be labeled "energy used to move people". #iTeachPhysics

There are almost no crustaceans in the deep ocean. Not because they would get crushed, but because they would DISSOLVE. The cold & high pressure cause changes to water that make it very corrosive to calcium carbonate shells. But there's one crustacean who solves this problem with ALUMINUM ARMOR.

Pappus chain. Graph link: desmos.com/calculator/b...

For your consideration: learn.genetics.utah.edu/content/cell...

Mathematicians stop phrasing logic problems in terms of death row prisoners challenge. [Inspired by reading the current issue of an official publication of one of my professional societies.]

Next year, I’m thinking of students creating a large “scale of the universe” / “powers of ten” sort of thing on the wall of my classroom. Students are assigned an approximate length scale, and draw and label an object from that scale. One side of the room is atomic scale, the other galaxy 🎢 1/2

I’m a climate scientist. Let me fix this headline. “Nearly a century ago, scientists showed that burning fossil fuels warms the planet. Today, we know human emissions account for over 100% of the warming. Yet dark money and disinformation still work to keep Americans addicted to fossil fuels.”

If you can't even bother paying an illustrator for your cover, how can we trust you not to cut corners with what's inside? We need to push back against this kind of bullshit practice, so if you don't like this, make your voice heard.

NEW: A lot of bad has happened to American science over the last year but nothing comes even close to what’s about to happen if we don’t speak out in opposition to the OMB rule changes and I hope @aaas-socsci.bsky.social @apsphysics.bsky.social and others will launch public campaigns about this. 🧪🔭⚛️

made a simple but neat perspective projection visualization in desmos... mmm... so tasty

Here's a cool pattern: If we divide the first n positive odd numbers by the next n positive odd numbers, we will always get 1/3. Here's why this makes sense.

Okay, children. Let's go over this again, because some of you are on the fucking remedial level here: If it doesn't have proper names or list a location and a search of the news outlet credited returns nothing, it's a fake. For fuck's sake people, TV news call signs are *four* letters. THINK.

Introducing Desmos Notebook (beta), our newest tool that combines text, expressions, sliders, and graphs all in one place. As you get to know Notebook, we’d love to hear your feedback, feature requests, and any bugs you find. We can’t wait to see what you create! #iteachmath #mathsky #iteachphysics

GARBAGE - dashare.zone ADMIN

Anyone know of a paper going into the physics of the formation of water waves from a rock (or whatever object) falling into water? Student is interested, and now I am too :) ⚛️🎢

Continuing to update/upgrade my old electrostatic field simulation in Desmos and realized my new design allowed for arbitrary external potentials and line charges... #desmos #ITeachPhysics

There's a close family resemblance between "We'd be much less productive if we actually had to check every paper we cited" and "We'd not be able to deport nearly as many people if we had to give all of them due process."

Slow motion shot of when baseballs collide during warmup (via r/baseball)

😌

Great 3-D collision example: www.reddit.com/r/baseball/s... 🎢

Up, Down, Strange, Charm, Bottom and Top

This is 'Red Beach' on Hormuz Island off the coast of Iran. The red mud is actually one of the island's most important natural resources: OCHRE. It's a mix of silica, clay & iron oxides. Let's talk about the unusual geology, vibrant colors & culture of Hormuz Island, Iran. (📷: Sirsilentbob423)

One of my least favorite things ever to provide alt text for, but you need to see this. In case you were wondering if the Trump administration's policy on trans people was anything but murderous:

"i'm ____, and i approved this message." "i dont think about american's financial situation. i dont think about anybody." cut to black. we do not trust you to add commentary, like AT ALL. just play the vid and a black screen to fill the rest of the ad slot.

If you have anyone in your life that uses voice-to-text on their phone a lot, I highly recommend requesting that they say "captain's log" each time before doing so.

😍

when u tax the rich

Once again, we can't ask children to "use AI responsibly" when the adults are not.

Really enjoyed this article by Katie Hunt about the long, messy effort to measure a precise value for Big G. It's very accessibly-written (great for students!) and touches on a lot of important ideas in scientific measurement and error. #ITeachPhysics #metrology edition.cnn.com/2026/05/07/s...

"Students are thinking, testing, & revising. That takes intentional design, research & willingness to rethink what’s “worked.” After 17 yrs, I know this approach leads to real outcomes—even when it’s questioned." M. Ruggerio, Hononegah Community High School. #WeArePhysicsEducation #ITeachPhysics

Today I learned that the physicist Sir Charles Boys, high-speed photography pioneer, who introduced G as the symbol for the gravitational constant, inventor of the quartz fiber suspension for experiments, popular soap bubble lecturer, also wrote a book on weeds, called "Weeds, Weeds, Weeds." 🧪⚛️🎢

🔭 A cautionary tale for undergrads (and above!) using AI for #astro plots: our BSc student wanted to make a "quick" HR diagram showcasing M-dwarfs & thought some chatbot could make one and... well... ...extra credits are now offered to students who can correctly find all errors on cursedHR.png 🫠 🧪

Shirley Meng explains why her passion for decarbonizing the global economy required her to relocate. https://scim.ag/42L4Uqp

I asked Gemini for some quotes from me on this topic…and they’re all sourced from that article! AI eating its own tail and poisoning its own dataset…

I got a Google Alert for my name yesterday, pointing to an article for an outlet I’d never spoken to, full of quotes I’ve never said. It’s now corrected…but the editor told me ‘I asked Google to find an expert but I think it used AI.’ Isn’t it your job to check..?

Mirror Maze 👀 #iTeachPhysics

😸🔭

If schools have money for AI, I'd rather they use that to pay teachers more

Your phone can HEAR the drop height of a ball. #phyphox

In 1979, Mattel sold toy Battlestar Galactica fighter ships that fired a tiny spring-loaded "torpedo." One 4-year old choked on it, and the entire line of torpedo toys was recalled and never sold again.

The next time you find someone pretending to explain quantum mechanics, quantum computers and quantum artificial intelligence like a guru, keep in mind this short introduction to the field given by Prof. Shankar at Yale University. After it, you can start spreading ignorance too. Simply brilliant.

All san serif lower case L's should be written as ℓ so we can distinguish Aℓ from AI.

famously the only joke allowed on Wikipedia is, in their List of Whales, any entry that is missing a photo says [cetacean needed] apparently some unfunny losers have made it their job to find public domain images of whales to eradicate this joke only one instance of [cetacean needed] remains

The backlash is here. A day doesn't go by now that I don't see a piece in a major outlet or in independent media advocating for or covering resistance to swamping children with tech.

Physicists when it's time to draw an arbitrary shape. 🎢⚛️

AI creativity is that which can say, “I studied 10,000 French Academic paintings and here is the most statistically typical result.” Human creativity is that which can say, “I studied 10,000 French Academic paintings and now I’m so sick of it, I’m gonna go invent Impressionism.”