All Things Physics
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Although the article is behind a paywall, there’s a nice video abstract that describes the main content.
January 29, 2026 at 11:28 AM
Although the article is behind a paywall, there’s a nice video abstract that describes the main content.
Energy loss and jerk on the loop-the-loop pubs.aip.org/aapt/ajp/art...
Energy loss and jerk on the loop-the-loop
In its usual form, the loop-the-loop (LtL) problem involves a uniform solid sphere rolling from rest down a linear ramp that transitions into a circular loop. T
pubs.aip.org
January 29, 2026 at 11:19 AM
Energy loss and jerk on the loop-the-loop pubs.aip.org/aapt/ajp/art...
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.
January 29, 2026 at 11:09 AM
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!
January 25, 2026 at 11:37 PM
Heh…we got word the campus would be closed last Friday, a dramatic change from 25 years ago, when we NEVER closed!
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.
January 22, 2026 at 10:55 AM
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!).
January 19, 2026 at 4:52 PM
‘Twas a tough one today. Took me 6 (whew!).
I can’t remember what his role was. His PhD was from the University of Michigan.
www.scu.edu/cas/physics-...
www.scu.edu/cas/physics-...
Philip R. Kesten - College of Arts and Sciences - Santa Clara University
www.scu.edu
December 28, 2025 at 7:44 PM
I can’t remember what his role was. His PhD was from the University of Michigan.
www.scu.edu/cas/physics-...
www.scu.edu/cas/physics-...
I realize this is a long shot, but did you happen to know Phil Keston? I worked with him when I taught at Santa Clara University.
December 28, 2025 at 10:03 AM
I realize this is a long shot, but did you happen to know Phil Keston? I worked with him when I taught at Santa Clara University.
Hmmm, I’m no mathematician, but I would think “where n∊A” means “for all.” After all, n∊A says “n,” not “some n” suggesting no exceptions, right?
December 19, 2025 at 10:55 PM
Hmmm, I’m no mathematician, but I would think “where n∊A” means “for all.” After all, n∊A says “n,” not “some n” suggesting no exceptions, right?
Can you provide a little more detail? Most diffusion demonstrations aren’t actually diffusion, and I’d love to have a good one at my fingertips.
December 16, 2025 at 10:31 AM
Can you provide a little more detail? Most diffusion demonstrations aren’t actually diffusion, and I’d love to have a good one at my fingertips.
Wow! I’ve been there many times, but I’ve never seen it like that!
December 9, 2025 at 5:03 PM
Wow! I’ve been there many times, but I’ve never seen it like that!
By the way, this video was made with one of the authors of that article. If you watched the video you probably already knew this. This article is the reason I got interested in schlieren imaging in the first place.
November 24, 2025 at 1:02 AM
By the way, this video was made with one of the authors of that article. If you watched the video you probably already knew this. This article is the reason I got interested in schlieren imaging in the first place.
My wife teaches math in a public high school, and teaches the lowest math level. She says there is a lot of pressure not to fail anyone because the school can’t handle the backlog. Everyone just gets pushed through the system. This is not the quite the same issue, but I think there’s a connection.
November 23, 2025 at 12:58 PM
My wife teaches math in a public high school, and teaches the lowest math level. She says there is a lot of pressure not to fail anyone because the school can’t handle the backlog. Everyone just gets pushed through the system. This is not the quite the same issue, but I think there’s a connection.
I too have seen a similar thing. Thankfully, it’s been in relatively small numbers so far, but it’s always surprising when a student can’t do basic algebra but has passed the prerequisite calculus class.
November 23, 2025 at 10:02 AM
I too have seen a similar thing. Thankfully, it’s been in relatively small numbers so far, but it’s always surprising when a student can’t do basic algebra but has passed the prerequisite calculus class.
Actually, no. It was the slicing a cube into a million pieces. I found that quite tedious, and AI was a big help.
November 23, 2025 at 1:06 AM
Actually, no. It was the slicing a cube into a million pieces. I found that quite tedious, and AI was a big help.
Here's the link to the full video:
youtu.be/SuxUvlgWnWA?...
youtu.be/SuxUvlgWnWA?...
Is it possible to see sound?
YouTube video by All Things Physics
youtu.be
November 22, 2025 at 10:39 PM
Here's the link to the full video:
youtu.be/SuxUvlgWnWA?...
youtu.be/SuxUvlgWnWA?...
We too offer far fewer colloquia, but it’s due to smaller attendances rather than budget concerns (though that’s still an issue). My comment is based mainly on the large increase in advertised events. So maybe it’s not an increase in events, but rather an increase in advertising?
November 19, 2025 at 4:48 PM
We too offer far fewer colloquia, but it’s due to smaller attendances rather than budget concerns (though that’s still an issue). My comment is based mainly on the large increase in advertised events. So maybe it’s not an increase in events, but rather an increase in advertising?
I totally agree. I recently was working on a program and got to the point where I knew exactly what needed to be done, but it was going to be extremely tedious to get all the “edge” corrections to work. It would likely have taken me a day or two to get it working, but with AI it was done in an hour.
November 19, 2025 at 10:52 AM
I totally agree. I recently was working on a program and got to the point where I knew exactly what needed to be done, but it was going to be extremely tedious to get all the “edge” corrections to work. It would likely have taken me a day or two to get it working, but with AI it was done in an hour.
OMG…AI is really good at programming…I use it a lot. Don’t fear it, let it help you! 😉
November 18, 2025 at 10:51 PM
OMG…AI is really good at programming…I use it a lot. Don’t fear it, let it help you! 😉
We’ve tried limiting the number of events we offer, and trying hard to make sure they are really worth students’ time to attend, and it seems like it’s working. Our event attendance has begun to increase.
November 18, 2025 at 10:45 PM
We’ve tried limiting the number of events we offer, and trying hard to make sure they are really worth students’ time to attend, and it seems like it’s working. Our event attendance has begun to increase.