iiinova — where your digital self keeps evolving

Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 12/10/2026

Imagine this for 90 minutes, so loud you can feel it in the soles of your shoes. I tried to sing the note and could feel a beat frequency in my throat

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 12/10/2026

I went with my brother to see the drone metal band Sunn0))) tonight. Truly incredible experience. If planets could listen to music, this is it

The members of the band, dressed in black robes, raise their arms on stage. The crowd mirrors them. There is fog lit by white light.

A spectrogram shows a constant stream of sound. The harmonics indicate a low-pitched, consonant drone.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 04/10/2026

What does it mean when I hear an interesting sound and immediately want to see the spectrogram

A spectrogram of a whistling kettle has a fundamental at 3375 Hz with two strong harmonics visible

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 30/09/2026

Science folks...is there an explanation for this? I usually teach radiometric dating to 8th graders with an experiment where we record the temperature of hot water as it cools over time. The trend is roughly exp decay, but this year I tried to make the curve fit better. Why a fractional exponent?

A desmos graph shows the temperature above room temp of water cooling down over 45 minutes. An exponential regression fits moderately well, but a more complex function fits better. The exponent is raised to the two-thirds power.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 27/09/2026

In my thermodynamics class, I review countable and uncountable nouns as a way to get students to understand the micro/macro distinction. I love this MiB quote for this

A pair of slides for a thermodynamics class. The top slide says physics is about "things" and chemistry is about "stuff," and the bottom slide says that distinction is artificial and useful. It features the Men In Black quote "a person is smart...people are dumb" as an illustration of the importance of different levels of analysis.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 27/09/2026

Top row: soundtrack Middle row: gameplay/story Bottom row: vibes

My nine games.
Top row: Mechwarrior 2: Mercenaries, POD, Halo
Middle row: Halo 2, KOTOR 2, Mechwarrior 3
Bottom row: Abe's Oddysee, Descent, Half-Life 2

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 22/09/2026

I'm giving a practice quiz in algebra 2 today, and it's 3 pages, so I figured I could put the answer key (shrunk to fit on one page) on the back. But with 3 pages, there's still an empty quarter page left. So, I made it appear recursively. Lol #ITeachMath

A three-page algebra quiz about linear functions. The fourth page is an answer key that shows all three solutions recursively in the last quarter of each iteration

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 17/09/2026

Time-lapse of an NaCl crystal forming. Saturated salt water is drying on a microscope slide. The yellow tint is from the camera. #EduSky #ITeachScience

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 08/09/2026

As the screenshot shows, I have officially reached half of the life expectancy for my demographic. All in all, I would say being alive has been acceptable I know no one is promised tomorrow, but even if my life was halfway through, at least I got to have a really cute dog youtu.be/Tj2v6k6NqOc

A still frame from a music video. Besides images of the performance is a frame showing male life expectancy in the USA and an equation showing that half of 76.5 is 38.25. It is implied by the words "life expectancy" that the performer is this age.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 08/09/2026

😮First time for me! I showed the game to one of my kids and they made a few moves while I was gone. Come back to see it's 3 words away from using up every letter. Happy as I am to see this score, I'm even happier to share it with my kid ❤️ hankgreen.com/smush · Sep 7 1020 pts · PERFECT 💯 🥞🥞🥞 🥞⭐🥞 🥞🥞🥞

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 08/09/2026

Preparing my lesson plans for this week, I came across upon one of my favorite slides I've ever made #EduSky #ITeachPhysics

This slide, titled "x and t are relative," is an explanation of simple relativity of measurement for location, time, and velocity. It features an image of a crowd of 12-inch rulers saying "all hail the one true ruler" in adoration of a 12-inch ruler on a throne wearing a crown. The text reads:

"Measurements of space and time are relative, or observer-dependent, because the universe doesn’t have built-in rulers or clocks.
We have to bring our own rulers and clocks, and there’s no reason mine is “correct” and yours is “wrong.” There is no experiment we can do to prove which frame of reference is the right one.
Therefore, we must abandon the idea that there is such a thing as a correct one."

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 07/09/2026

I hate this stupid ad so much. If I have to listen to this man eat one more time I think I'll set something on fire.

A man eats a burger. It is a still frame from an ad for Wonder.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 30/08/2026

So many weird quirks of Earth Science...I remember learning about how the Coriolis Effect shapes ocean currents and how the North Atlantic gyre just happens to make it easier to ship slaves from Africa to the Americas. Just a coincidence of Earth's rotation and location of its continents.

A map of ocean currents in the North Atlantic ocean. The currents run clockwise.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 10/08/2026

I'm really happy with the era of kid-friendly shows my kids have been growing up in. I've deeply enjoyed each one of these, and only watched them because my kids were interested

A poster for the TV show Bluey. The Heeler family poses with their house in the background.

A poster for the movie KPop Demon Hunters. Huntrix poses with weapons

A poster for the TV show Steven Universe. The main characters are in dynamic poses

A poster for the YouTube object show One. The character Backpack is shown in silhouette under the show's name.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 09/08/2026

Absolutely! This slide is meant to illustrate work that the students will have just done. I will project the top slide onto a white board, and volunteers will fill out the grid. They will notice the pattern, and we will discuss it. THEN I transition to the animation and make the pattern stick!

Two consecutive slides for algebra 2. The first slide gives students space to work out the coordinates of the vertex of a variety of related parabolas. The second slide shows an animation that connects their work to the pattern.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 09/08/2026

I'm revamping my materials for the quadratics unit, including my tutorial on completing the square. I've always struggled with how to explain it without making it confusing, and I think this visual will help nicely. It uses the same mechanic as my "camera moves" animation #Desmos #EduSky #ITeachMath

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 01/08/2026

I made it loop! Plus I added a few stock images along the way to show scale.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 01/08/2026

The graph above is showing the convergence of geometric series. I wanted the window to focus on points at consecutive integers. The horizontal movement on the animation is the integral of this sum of normal distributions. The bell curves narrow to make the window slow down enough to see later points

A series of normal distributions, graphed in Desmos, that increase arithmetically in mean and decrease harmonically in standard deviation

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 01/08/2026

My latest project in #Desmos involves making programmed "camera moves" for animations. I often make graphs to show my students something specific. I have been trying to write functions that adjust the window so I can get videos like this. www.desmos.com/calculator/3... #ITeachMath #EduSky

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 27/07/2026

Post a perfect album from the 90s that isn't nirvana, soundgarden, pearl jam, or alice in chains.

Album art for Crash Test Dummies - God Shuffled His Feet

Album art for Sting - Ten Summoner's Tales

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 27/07/2026

I wanted an animation of endlessly zooming into the real number line to explain to my students the difference between discrete and continuous, so I made this: www.desmos.com/calculator/e... Just in case you find it useful (or mesmerizing!) #Desmos #ITeachMath #EduSky

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 21/07/2026

I was not prepared for how much the cobbler would expand, but I think it turned out nicely 🫐

A blueberry cobbler, just put in the oven

The blueberry cobbler has expanded an alarming amount 😅

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 13/07/2026

My first reaction to this question is that it's an obvious AI mistake, that frequency and wavelength are two sides of the same coin But I suppose that if the listener is moving relative to the source, a perceived frequency will no longer be associated with its typical wavelength #ITeachPhysics

A YouTube learning poll that asks "in music, what characteristics of sound waves determine the perceived highness or lowness of a sound?" The choices are wavelength or frequency

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 02/07/2026

Here is the slide that I made that gif for...I am going to make waaaay too much of an emphasis on the different pronunciation of "progress" as a noun and a verb

A google slide titled "The exponential function - quintessential growth modeling" with an embedded animation. The text reads:

As we have discussed, a mathematical model doesn’t just show a phenomenon’s progress (n), it also shows how that phenomenon can progress (v).
The exponential function f(x) = ex is the perfect coincidence where a model’s rate equals its state.
This makes it an ideal basis for other kinds of growth models. We will see a few today.

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 02/07/2026

The exponential function e^x is a quintessential growth model because it equals its own derivative (its state equals its rate) www.desmos.com/calculator/n...

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 26/06/2026

Today, I finished a 7-hour video I've been working on for a week, and a 4-hour video I've been watching since yesterday. Follow me for more tips and inspiration

YouTube watch history featuring a recent video by Gutsick Gibbon called "Darwiniana" and a compilation by The Exploring Series called "There is no antimemetics division"

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 23/06/2026

I used #Desmos to model the path of a shadow across the ground. Since it was partially cloudy, I was able to tell where the shadow WOULD have been if the sun weren't blocked. It also made it possible to identify solar noon without a compass! #ITeachMath

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 21/06/2026

I guess this was a good day to start then! This was fun

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 20/06/2026

I've heard algal blooms can cause skin irritation

Tasha Yar, a character from Star Trek, with a skin lesion on her face

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 17/06/2026

Here's the end solo for a song I've been working on :)

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 09/06/2026

We don't usually see each other's headers. Here's mine. Quote post with yours.

A math teacher aggressively points to a geometry diagram. This is a frame from my music video for the song "Labyrinth"

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 05/06/2026

My friend and I went with our kids to see the final episode of the Amazing Digital Circus...their faces don't need to be on the internet but you can't see ours anyway Tag yourself if you want, buddy 😁

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 29/05/2026

If there are any millennials who listened to stomp-clap-hey-adjacent music, I am going crazy trying to identify this song I *think* the title of the song is a girl's name, and the song is absurdly upbeat and fun

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 28/05/2026

I accidentally broke a light bulb, so I figured I might as well look at the filament under the microscope. The wire can't be more than 0.05 mm in diameter

$A light bulb filament under a microscope. It is a coil of extremely thin wire superimposed on a microscope slide showing fractions of a millimeter.$

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Darth Calculus 🏳️‍🌈 @darthcalculus.bsky.social · 25/05/2026

Oh duh, the example I was looking at was in the resources. I could have just gone directly to the source 😅

A screenshot of the Desmos resource that shows vertical sliders and the expression folders that generated them

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