An image of a 3D gas simulation and the speed distribution of the particles, which matches the Maxwell velocity distribution.
In today's class we discussed the Maxwell velocity distribution (MVD). Then I showed a VPython simulation of a gas in which all the particles start with the same speed. After a little while the speed distribution matches the MVD really well (which I always find amazing)!
Yep. I’ve been struggling to make clear vapor pressure and boiling point and thought this would help lead to a good discussion.
Can ice water boil? You bet it can. Yes, I know it’s a slow boil, but still! That was today’s in-class demo.
Here’s a video I made on this topic a while ago.
youtu.be/auJPuzKigGA?...
This is why I always give the mean and standard deviation. I think students have a right to know where they stand in the class. I once got a 42% on an exam. I was crushed until I saw the class average was 27%. I still felt like I hadn’t learned anything, but at least I knew I wasn’t alone.
Okay. But British Columbia just passed a law to be permanently on DST, so why not just do that? Why involve Atlantic time? Seems very odd.
Atlantic time? WTF? What’s the logic on that?
Sound is not something we can typically see, though there are ways to visualize it, including cymatics and special acoustic cameras. This video pursues a different tactic: using schlieren photography and stroboscopic lighting to show how sound waves reflect and d
https://fyfluiddynamics.com/?p=27668
Looks like fun. Alas, I flew back early due to the snowstorm on the East Coast and missed all the fun.
Congratulations Aaron! Well deserved!
I’m still getting an error on your links…
Yes, that’s two links in a row that have not worked. 😢
All very good points!
We worked hard on these experiments, and the results are pretty spectacular!
Wow…never seen that before. That’s truly remarkable!
Wow, this is a great problem. I’ve pondered, went down two wrong paths, and now think I have it figured out. Surprising answer.
Do I dare? So, so, so, so close…
An evening with Adam Savage, with Matt Parker as the emcee at G4G16. Adam’s talk was funny, deep, intellectual, and touching. What a great event!
Donald Knuth gives a Q&A. “I’m like Gemini. I’ll answer anything, but my answers may contain errors.”
I’m attending my first #G4G gathering, and so far I’m loving it! Here is my colleague @divbyzero.bsky.social giving a talk on interesting number tricks from simple dynamical systems!
If you haven't seen it, @allthingsphysics.bsky.social has some nice animations: youtu.be/TDAXW0iAIQo?...
I also used Algodoo to show similar vectors: www.youtube.com/watch?v=2Cnn...
I watched this as it happened, and was as stunned as she was!
Although the article is behind a paywall, there’s a nice video abstract that describes the main content.
I’ve read a few AJP articles over the years that discuss rider comfort, and minimizing jerk is one thing that’s always mentioned. There’s one in particular that involves a loop-the-loop that I found particularly interesting from an intro physics perspective. I’ll try to find it and send a link.
Heh…we got word the campus would be closed last Friday, a dramatic change from 25 years ago, when we NEVER closed!
Got a nice little shoutout in the latest issue of #ThePhysicsTeacher about #schlieren imaging and #SeeingSound.
Visualizing Sound and Schlieren pubs.aip.org/aapt/pte/art...
Can someone please clarify whether this affects glowscript. I’m only an occasional user of WebVPython, but would hate to lose what I’ve created over the years.
‘Twas a tough one today. Took me 6 (whew!).
