New #iTeachPhysics Simulation: Rolling and Slipping!
Have you ever wondered what would happen if you spun a 13 foot tall wheel of cheese at 100 rpm and set it loose on the ground? Neither have I!
(1/3)
I haven't heard a single post about this anywhere--
disney's had their animators reanimate some of their recent iconic songs in ASL?? here's "we don't talk about bruno"??? this is amazing???
www.youtube.com/watch?v=WBrv...
My social media memory from 11 years ago: a cautionary tale about why we don't use mixed fractions.
And here's the Facebook post where the store announced he had passed: www.facebook.com/LaughingOgre...
A personal account about Gib and his death from the writer Paul Jenkins, who was such a regular guest at the Ogre during my time in Columbus that for a while I actually thought he might live nearby. (He did not.)
pauljenkinswriter.substack.com/p/ten-minutes
The best local comic book shop I ever had was The Laughing Ogre in Columbus OH. Today I found out that Gib Bickel, who made the Ogre what it was, passed away.
Here are some links about Gib, starting with a beautiful profile from a few months ago by Shopping for Superman:
youtu.be/5ahYNPj5jcg?...
If you're interested in #illusions and visual perception, you should be following Akiyoshi Kitaoka.
A slightly grainy, zoomed-out photo of the launch of Artemis 2, showing the rocket plume climbing into the blue sky.
I took this photo of Artemis 2 with a TLR film camera from the 1950s
@spacescout.bsky.social
I prefer making my own Desmos for most stuff, but there's no way I'm gonna create a flexible circuit-builder like theirs. :)
Is it *making* them, or *using* them that's limited to US? I am pretty sure no account is needed to use a preset link. Maybe limiting the creation to US is for some sort of payment-processing reason...?
Anyway if you have a list of the ones you made while they were free I would like to see!
MAKING presets requires a "phet studio" subscription, but I'm pretty sure anybody can use a preset link once it has been made. For circuits especially I feel like they would be helpful. The old Java circuit sim allows saving/loading but the interface is very outdated.
Does anybody know of any collections of links to customized PhEt simulation "presets"? PhET has some on their own site (like phet.colorado.edu/en/simulatio...) but if people have made additional ones I'd like to see them. #ITeachPhysics
The long story about the creation of the Infinity Train logo is now public to everyone on my patreon: tinyurl.com/bdcw5dfk
How long will it stay public? Dunno! But it's open for now, so go check it out!
#graphicdesign #animation #cartoons
I didn’t know this, did you? Amazing!
The music collection of a Chicago man who attended more than 10,000 concerts and recorded them on cassette tapes is slowly being digitized and released online for free.www.koin.com/entertainment-news/he-re...
I don't know any magnetic field line sims at all, sadly! Only field vectors.
If things that you expect to form closed paths are not closing, it's probably due to small errors compounding, and using a numeric technique like RK4 might fix it? A few of us Desmos physics ppl use that when needed.
Yeah, of course!
A lot of what I do in Desmos is mostly for my own fun and growth. Even a "simple" simulation will take me many hours to get polished, and then I show it to my classes for like 3 minutes each, haha.
CHRISTINA KOCH GREETING HER DOG AFTER RETURNING FROM THE MOON IM GONNA CRYYY 😭😭😭
1. The line density doesn't always indicate the field strength.
2. The number of lines per unit q isn't fully consistent. (Usually no worse than 12 vs 13, IIRC.)
I also with it had a "lines per q" setting I could lower, but I've asked Geoff too many questions about it enough as it is. :)
Aside from my own Desmos ones, I mostly use Geoff Nunes' sim because it CAN handle lines for arbitrary setups: noragulfa.com/efield/
There are some quirks in the Noragulfa sim though regarding the "initial direction" of the lines as they leave particles, leading to some contradictions:
It's a mess right now because I'm still in the midst of it, but it might give better ideas than the old one!
My holy grail is to draw field lines for arbitrary setups, but it would be even more intensive. Moises uses the closed-form expressions for two-particle field lines, but >2 is numeric only.
Thanks Michael!
My electrostatics sim as seen at that link is the first "big" graph I spent a lot of time on and has a lot of inefficiencies. Here's a link to an from-scratch remake that I'm working on:
www.desmos.com/calculator/t...
A photo of a white lighthouse with a black top standing among green trees and palm plants during sunset. The sky features strikingly layered, wavy clouds with shades of blue and yellow.
One of the most surreal skies I have ever witnessed, as vibrantly blue undulatus asperatus clouds rolled over the St. Mark's Lighthouse at sunset to create this dreamy scene. #Photography
Sounds amazing right??
The book also establishes the existence of capybara-cat cafes in the Fire Nation and has a scene in which Sozin--still just prince and not firelord--embarrasses his father by suggesting tariffs as an economic policy solution.
(Also a trans waterbender is one of the main characters!)
#atla #avatar
Our bedtime book right now is "The Awakening of Roku", the most recent Chronicles of the Avatar novel, about Aang's immediate predecessor in the reincarnation cycle.
A recent session had this banger line which Roku says is an Avatar Kyoshi quote:
"Fear is the soil in which injustice takes root."
St Michael's tower peeping through the blossom on a very overcast start to the day here in Glastonbury.
(Also, I just learned that Project Steve's origins involve Laurence Krauss which is unfortunate, but does not make the project itself less funny or less powerful of a statement.)
