@arundquist

college physics teacher, motto: higher, faster, louder.

 Saint Paul, MN
arundquist.wordpress.com
Joined January 2009
  • Tweets17.7K
  • Following925
  • Followers2.1K
hey @culvers give some love to the folks visiting every Culver's in MN over 7 days everyculversmn.com/
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and for my physics/math folks check out the "about" section where I did the traveling salesman approach to minimize the driving time to hit all 61 restaurants
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New Blog post about how I race myself on my way to work arundquist.wordpress.com/202…

Real life ghost mode

This post describes how I figured out how to ride to work while racing earlier versions of myself. Think of it like Mario Kart’s Ghost mode, only without cool 3D virtual reality and with a ph…

arundquist.wordpress.com
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It was close but today was my fastest ride home of the week. Here's the top two
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Google Apps Script Web App to animate a race among multiple .tcx files (exports from fitbit, for example). youtube.com/watch?v=1IPRB9ae…

Animate .tcx files using Google Apps Script

This is a Web App I built with Google Apps Script. You can choose m...

youtube.com
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Proof of concept where you can take a picture with your phone and get a Google Gemini suggestion for a physics problem based on the image youtu.be/i2vceA4p7mA
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First submission: How disappointing No eclipse for me today I will riot now
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This is from the mobile app I built for campus-wide challenges
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Script to number your google doc headings (up through level 3). Yes, should have cleaned it up but hey, it works script.google.com/a/macros/h… #googleAppsScript
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Still playing with driving a pendulum by sending the pivot point around on a vertical circle. Here's how the poincare section changes as the frequency goes from 1x to 1.2x the resonant frequency of the pendulum
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First an animation of a pendulum whose pivot is driven around a circle. Then an image of the Poincare section of the motion showing ~100k periods. Took a while to find a combo of circle radius and friction to get some cool chaos going!
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here's the poincare section
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Here's a shot of the Poincare section as the radius of the circle closes in on the chaos point. The blue/yellow background is a density representation indicating where the red dots are clustering.
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Here's a fun project I've been working on hamlineoracle.com/11961/life…

Hamline GO!

Hamline GO, inspired by the viral mobile game Pokémon GO, made its debut at the beginning of this school year with the goal to provide students with a unique way to interact with both their profess...

hamlineoracle.com
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Working on a blog post about the colliding block pi calculation. Here's what happens if the collisions take a little bit of time (spring-like collisions instead of instantaneous momentum transfer). Number at top is the number of collisions of the small block (m2=100m1)
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hmmm. It's an animated png but it looks like it's not looping. I guess you have to wait for the blog post :)
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Here's the gif version (I think)
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I know I should wait for pi-day for these sorts of things but for some reason I was thinking about this recently arundquist.github.io/myJupyt…

Andy Rundquist’s Jupyter Blog

Blog for Andy Rundquist that hosts jupyter pages converted using nbconvert

arundquist.github.io
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I needed popcorn for this one.
Mehdi Hasan
@mehdirhasan7 Sep 2023
Me: "Did you not make 750,000 dollars?" Vivek Ramaswamy: "Not at the time I had applied for the [Soros] scholarship." Me: "Yes you did Vivek. This is awkward for you because you did. I've got the tax returns in front of my face." #receipts New clip 😉👇🏽
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so-called "no code" appsheet takes some good algorithmic thinking to use. Here's a vid for future me on how to do some tricky things with it youtube.com/watch?v=cuy0qfIJ…
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