Writing Exchange

0 posts0 participants0 posts today

Les capsules du prof LutzThis is an old animation I had on VHS. I animated the train part (30 yrs ago?) with Mathematica on my NeXTdimension cube (using the graphic board NTSC Composite outputs). I renumerized it back from tape lately and added the scrolling text. Et aujourd'hui j'ai accolé l'intro musicale. Reste plus qu'à mettre des bips bips sonores lors de l'arrivée des impulsions lumineuses dans la partie 'train'...<a href="https://mamot.fr/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://mamot.fr/tags/Einstein" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Einstein</a> <a href="https://mamot.fr/tags/SpecialRelativity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#SpecialRelativity</a> <a href="https://mamot.fr/tags/Classroom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Classroom</a> <a href="https://mamot.fr/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a> <a href="https://mamot.fr/tags/NeXTcomputers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#NeXTcomputers</a>

pglpmWhat are current sites, or journals, where one can ask physics questions of a somewhat technical nature? Stackexchange was such a place, but its quality and participation seem to be declining of late. Some physics journals used to have a "questions" section, but I don't know any that do now. I haven't found any useful hashtags on Mastodon for this kind of purpose either...<a href="https://c.im/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://c.im/tags/physicsresearch" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicsresearch</a> <a href="https://c.im/tags/physicseducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicseducation</a>

pglpmLet me try a little physics riddle here on Mastodon. This riddle is really meant as a moment of self-reflection for physics teachers (in particular I invite you to compare what answers you'd give within Relativity Theory)We're in the context of Newtonian mechanics.There are three small bodies. In the inertial coordinate system (t, x, y, z), we know the following about the three bodies (at a given instant of time):- The first has mass 3 kg - The second has velocity (1, 0, 0) m/s - The third has momentum (2, 0, 0) kg⋅m/sNow consider a new coordinate system (t', x', y', z') related to the first by a Galileian boost:t' = t, x' = x – u⋅t, y' = y, z' = z with u = 1 m/sQuestions:- What is the mass of the first body in the new coordinate system? - What is the velocity of the second body in the new coordinate system? - What is the momentum of the third body in the new coordinate system?Can you give definite answers to these three questions, and *motivate your answers with simple physical principles*? Note that by "definite answer" I don't necessarily mean an answer with a definite numerical value.<a href="https://c.im/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://c.im/tags/physicseducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicseducation</a> <a href="https://c.im/tags/physicsed" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicsed</a> <a href="https://c.im/tags/science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#science</a> <a href="https://c.im/tags/scienceeducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#scienceeducation</a> <a href="https://c.im/tags/mechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mechanics</a>

pglpmDear fellow physics teachers (especially of continuum-mechanics-related disciplines): do you have any suggestions, thoughts, personal experiences, and references about nice *graphical representations* of the flux of a vector quantity – for instance momentum flux (in momentum transport)?Cheers!PS: what tags can be good & appropriate for a request like the present one?<a href="https://c.im/tags/physicseducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicseducation</a> <a href="https://c.im/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://c.im/tags/continuummechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#continuummechanics</a> <a href="https://c.im/tags/fluidmechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#fluidmechanics</a> <a href="https://c.im/tags/AAPT" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#AAPT</a>

Vermont Citizen ScientistUN declares 2025 as International Year of Quantum Science & Technology <a href="https://physicsworld.com/a/its-official-united-nations-declares-2025-the-international-year-of-quantum-science-and-technology/" rel="nofollow noopener noreferrer" translate="no" target="_blank">https://physicsworld.com/a/its-official-united-nations-declares-2025-the-international-year-of-quantum-science-and-technology/</a> Goal is to spread the understanding of quantum mechanics in education and career opportunities, and to highlight the advances in science and medicine, computing, lasers and their applications, and solar-powered cells, and to provide the educational foundations for future scientists, especially in Africa and developing countries. <a href="https://sciencemastodon.com/tags/ScienceEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ScienceEducation</a> <a href="https://sciencemastodon.com/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> <a href="https://sciencemastodon.com/tags/physicseducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicseducation</a>

AstroMancer5G (she/her)I'm doing my <a href="https://spore.social/tags/MastersThesis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#MastersThesis</a> on <a href="https://spore.social/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a>, and I can confidently say that a huge part of what turns so many people away from <a href="https://spore.social/tags/physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physics</a> is that, especially at the <a href="https://spore.social/tags/intro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#intro</a> level, <a href="https://spore.social/tags/classes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#classes</a> aren't designed to interrogate <a href="https://spore.social/tags/concepts" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#concepts</a> and tie them together as much as to teach lists of <a href="https://spore.social/tags/equations" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#equations</a> to memorize.Intro <a href="https://spore.social/tags/mechanics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#mechanics</a> mostly covers four concepts: Newton's Second Law and the three <a href="https://spore.social/tags/conservation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#conservation</a> laws. Starting from there would greatly reduce the mental load.

Joe HeafnerCan anyone in the UK tell me about The Teaching of Physics by J. W. Warren (Butterworths, 1965). Warren was a physics professor at Brunel and was apparently deeply interested in physics education. I would like to know more about him. This book sounds like one I should acquire. <a href="https://scholar.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a> <a href="https://scholar.social/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a>

Steve-o Stonebraker<a href="https://retro.pizza/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a> and I was just looking over my students' notes from the DC circuits chapter. When encountering the RC time constant, which is normally written with a lowercase tau, this student referred to it as "T (Fancy)". Pretty reasonable way to describe the symbol if you don't recognize it. :)<a href="https://retro.pizza/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://retro.pizza/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a>

Steve-o StonebrakerDo you know a new or about-to-be new physics teacher? The next meeting of the Harvard PoLS-T network is focused on resources and Q&A for new teachers.This is a group that was started during covid lockdowns by Eric Mazur to help physics teachers and education researchers connect with each other, but has turned into an ongoing series of zoom meetings and talks. Lots of great people and ideas!If interested, register here: <a href="https://docs.google.com/forms/d/e/1FAIpQLScRzq4MiyhPT6kQERei8vVANLtfyCWIPvHhRBvLq1VTSjlKfw/viewform" rel="nofollow noopener noreferrer" target="_blank">https://docs.google.com/forms/d/e/1FAIpQLScRzq4MiyhPT6kQERei8vVANLtfyCWIPvHhRBvLq1VTSjlKfw/viewform</a><a href="https://retro.pizza/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a> <a href="https://retro.pizza/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a>

Michael FreemanNew sim: Falling through Air! Link: <a href="https://afreeparticle.com/falling.html" rel="nofollow noopener noreferrer" target="_blank">https://afreeparticle.com/falling.html</a>Explore air drag with: - Adjustable initial height, velocity, & mass.- See effect of changing radius, g, & rho in real time- Motion & force vectors - Motion, force, & energy graphs vs. t & h(Reposting with hashtags)<a href="https://mastodon.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a> <a href="https://mastodon.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEM</a> <a href="https://mastodon.social/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a> <a href="https://mastodon.social/tags/StemEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StemEducation</a>

Michael Freeman<a href="https://mastodon.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a>: Made a frames of reference animation.<a href="https://afreeparticle.com/framesofreference.html" rel="nofollow noopener noreferrer" target="_blank">https://afreeparticle.com/framesofreference.html</a><a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEM</a> <a href="https://mastodon.social/tags/StemEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StemEducation</a> <a href="https://mastodon.social/tags/StemED" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StemED</a> <a href="https://mastodon.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://mastodon.social/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a>

Michael Freeman<a href="https://mastodon.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a>: Dipping my toe into making my own <a href="https://mastodon.social/tags/Desmos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Desmos</a> <a href="https://mastodon.social/tags/DesmoClassroom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#DesmoClassroom</a> Create Your Own Challenge.Anyone want to try it out with me? On the third slide, make a shape with two pulses, then try to match other people's shapes!Link: <a href="https://student.desmos.com/join/tt6u54" rel="nofollow noopener noreferrer" target="_blank">https://student.desmos.com/join/tt6u54</a><a href="https://mastodon.social/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a> <a href="https://mastodon.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> <a href="https://mastodon.social/tags/StemEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StemEducation</a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEM</a>

Junghyeon ParkFor some hashtag hits: <a href="https://mathstodon.xyz/@j824h_arXiv_physics_ao_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_ao_ph</a> <a href="https://mathstodon.xyz/tags/climate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#climate</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_bio_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_bio_ph</a> <a href="https://mathstodon.xyz/tags/biophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#biophysics</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_chem_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_chem_ph</a> <a href="https://mathstodon.xyz/tags/chemistry" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#chemistry</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_data_an" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_data_an</a> <a href="https://mathstodon.xyz/tags/dataanalysis" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#dataanalysis</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_geo_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_geo_ph</a> <a href="https://mathstodon.xyz/tags/geophysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#geophysics</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_hist_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_hist_ph</a> <a href="https://mathstodon.xyz/tags/historyofscience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#historyofscience</a> <a href="https://mathstodon.xyz/tags/philosophyofscience" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#philosophyofscience</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_optics" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_optics</a> <a href="https://mathstodon.xyz/tags/optics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#optics</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_ed_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_ed_ph</a> <a href="https://mathstodon.xyz/tags/physicseducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#physicseducation</a> <a href="https://mathstodon.xyz/@j824h_arXiv_physics_plasm_ph" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@j824h_arXiv_physics_plasm_ph</a> <a href="https://mathstodon.xyz/tags/plasma" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#plasma</a>

Michael FreemanContinuing my <a href="https://mastodon.social/tags/Introduction" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Introduction</a>, here's a supercut of some of my <a href="https://mastodon.social/tags/Physics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Physics</a> interactives that you can find at <a href="https://www.afreeparticle.com" rel="nofollow noopener noreferrer" target="_blank">https://www.afreeparticle.com</a><a href="https://mastodon.social/tags/ITeachPhysics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ITeachPhysics</a> <a href="https://mastodon.social/tags/STEM" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#STEM</a> <a href="https://mastodon.social/tags/StemEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#StemEducation</a> <a href="https://mastodon.social/tags/PhysicsEducation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#PhysicsEducation</a> <a href="https://mastodon.social/tags/Simulation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Simulation</a> <a href="https://mastodon.social/tags/Interactive" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Interactive</a> <a href="https://mastodon.social/tags/Desmos" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Desmos</a> <a href="https://mastodon.social/tags/Science" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#Science</a> <a href="https://mastodon.social/tags/ScienceEd" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#ScienceEd</a>

Recent searches

Search options

Administered by:

Server stats:

#physicseducation