iiinova — where your digital self keeps evolving

Scott Carr @twotheta.bsky.social · 28/01/2025

It's only ever a series of ticks. Pitch is all in your head. (Audio on. Sorry for shaky cam.)

Scott Carr @twotheta.bsky.social · 25/01/2025

Kinetic theory of gas demo! Pair it with this guy in the picture. Then you can push the sensor down, decreasing volume, and you see the force (and pressure) go up!

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Scott Carr @twotheta.bsky.social · 25/01/2025

My son(7yo) got Gravitrax for Christmas. We have been having a blast inventing our own tracks. He wanted a 3-way race which used the flip-flop and the X. It's nothing special but it's fun watching him build spatial reasoning and a joy to run the marbles down the tracks. 10/10 gift.

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Scott Carr @twotheta.bsky.social · 24/01/2025

This isn't usually what people call me but in the most profound sense, they're not wrong.

Email sent to me and begins with the literal text "Hello First Name"

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Scott Carr @twotheta.bsky.social · 17/01/2025

TIL there are Memberships for Mattel toys.

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Scott Carr @twotheta.bsky.social · 17/01/2025

I didn't believe it, so I tried it. See the results below.

Google search reveals that water will not, in fact, freeze at 27 degrees.

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Scott Carr @twotheta.bsky.social · 17/01/2025

Sorry for lack of axes labels, made it on my phone. X-axis is year and y-axis is number of women in Congress. I'm not trying to say that women don't experience misogyny. I'm just trying to say that I don't believe the statistic you cite actually means what you say it does.

Graph showing the number of women serving in congress as a function of time from 1917 to 2025. Y-axis is the number of women serving and x-axis is the year. Data from Center for American Women and Politics at Rutgers University (https://cawp.rutgers.edu/facts/levels-office/congress/history-women-us-congress)

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Scott Carr @twotheta.bsky.social · 04/01/2025

imgs.xkcd.com/comics/hyphe...

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Scott Carr @twotheta.bsky.social · 04/01/2025

This is the most beautiful place on earth. West coast, best coast.

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Scott Carr @twotheta.bsky.social · 11/12/2024

I then asked GPT to give me a description of the diagram that could be used to generate the image. It gave a lovely description. I then used that description to generate the image. And.... Behold, the Circular Motion Surup!

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Scott Carr @twotheta.bsky.social · 11/12/2024

Two more rewrites, two more unsuccessful attempts. This time we got lots of Circular Parths, and a singular Hole...somewhere. *sigh*

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Scott Carr @twotheta.bsky.social · 11/12/2024

I then asked for one with fewer labels and was more 2D. Things to note: There is a puck. There is the indication of circular motion. There is something hanging in the middle. There is a table. And none of it makes any sense.

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Scott Carr @twotheta.bsky.social · 11/12/2024

My first attempt was with the prompt "A puck moves in a circle on a table top. There is a string attached to the puck on one end. The other end passes through a hole in the table and attaches to a weight." Unfortunately, this was the best result I got.

Generative AI attempt to make the image described above. Many things are labelled, none of which actually describe the thing they are labelling.

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Scott Carr @twotheta.bsky.social · 11/12/2024

I tried to get GPT to generate a version of this diagram. What follows are my attempts.

A puck moves in a circle on a table top. There is a string attached to the puck on one end. The other end passes through a hole in the table and attaches to a weight.

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Scott Carr @twotheta.bsky.social · 10/12/2024

You can tell the software has not had attention in a while. These are the options for "How did you hear about us." Your animation looks awesome though and I'd love to play around with the software!

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Scott Carr @twotheta.bsky.social · 02/12/2024

All geometry is really just algebra. And the worse you are at the geometry, the harder the algebra. Not wrong, just ugly and insightful.

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Scott Carr @twotheta.bsky.social · 22/11/2024

A bead is placed on a rod. The rod rotates at a constant angular rate. The bead begins at rest near, but not at, the pivot point. Here are two ways of viewing the motion of the bead. The left shows the motion of the bead from an inertial frame. The right shows the motion from the frame of the rod.

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Scott Carr @twotheta.bsky.social · 19/11/2024

Constant velocity buggy found. You passed the #modphys test. =) But really, these activities are great. Do you set these all up or do you ever have students set these up for each other?

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Scott Carr @twotheta.bsky.social · 19/11/2024

Just today I was telling a student exactly this.

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Scott Carr @twotheta.bsky.social · 29/10/2024

I'm teaching a Models in Physics course. All knowledge in the class is discovered by experiments, some from me and some from them. After two weeks in optics we discovered the ray model, parallax, law of reflection, and a method for locating images. This quiz answer made my day. #ITeachPhysics

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Scott Carr @twotheta.bsky.social · 28/10/2024

Why does the elevation of a point on the earth's surface go through two cycles per year? (See bottom graph) Is it just a fitting artifact? Is it real? Help me science peoples. Data from sideshow.jpl.nasa.gov/post/series.... #EarthScience

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Scott Carr @twotheta.bsky.social · 24/10/2024

No class today but I did work with students on homework during office hours. Any guesses about what problem they were solving? #ITeachPhysics

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Scott Carr @twotheta.bsky.social · 19/10/2024

Does this mean what I think it means? Is it what the author meant to say? Help.

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