Michael Freeman
@afreeparticle.com
High School Physics Teacher. Desmos Fellow. He/him. #iTeachPhysics #EduSky
www.afreeparticle.com
www.afreeparticle.com
Pinned
Michael Freeman
@afreeparticle.com
· Nov 25
🍎 New folks to #ITeachPhysics: you may find these interactives and other resources useful!
Link: afreeparticle.com
Link: afreeparticle.com
Reposted by Michael Freeman
I built a resistor cube to test the theoretical answer to the interesting extension question and filmed it with an infrared camera to show the current symmetry which is my favourite way to solve it.
youtu.be/CQ5CAqUHHxc
#ITeachPhysics
#SciTeachUK
youtu.be/CQ5CAqUHHxc
#ITeachPhysics
#SciTeachUK
A real resistor cube - does theory agree with reality?
YouTube video by Physics with Simon Poliakoff
youtu.be
November 28, 2025 at 6:47 AM
I built a resistor cube to test the theoretical answer to the interesting extension question and filmed it with an infrared camera to show the current symmetry which is my favourite way to solve it.
youtu.be/CQ5CAqUHHxc
#ITeachPhysics
#SciTeachUK
youtu.be/CQ5CAqUHHxc
#ITeachPhysics
#SciTeachUK
Reposted by Michael Freeman
I don’t know if anyone else notices or cares, but when I see a presentation in which the speaker uses obviously generated-AI images to illustrate their slides, it makes me immediately less confident in whatever other content they’re presenting.
November 28, 2025 at 3:07 PM
I don’t know if anyone else notices or cares, but when I see a presentation in which the speaker uses obviously generated-AI images to illustrate their slides, it makes me immediately less confident in whatever other content they’re presenting.
Any recommendations out there for good projects, curriculum, etc for a high school "Engineering Design" class that I'll be teaching next semester?
I'll have access to a makerspace with 3D printers, a laser cutter, and a vinyl cutter, and have flexibility with the curriculum.
#iTeachPhysics #EduSky
I'll have access to a makerspace with 3D printers, a laser cutter, and a vinyl cutter, and have flexibility with the curriculum.
#iTeachPhysics #EduSky
November 26, 2025 at 6:54 PM
Any recommendations out there for good projects, curriculum, etc for a high school "Engineering Design" class that I'll be teaching next semester?
I'll have access to a makerspace with 3D printers, a laser cutter, and a vinyl cutter, and have flexibility with the curriculum.
#iTeachPhysics #EduSky
I'll have access to a makerspace with 3D printers, a laser cutter, and a vinyl cutter, and have flexibility with the curriculum.
#iTeachPhysics #EduSky
Reposted by Michael Freeman
A deal to extend ACA subsidies for 10s of millions of people set to expire in December may be doomed — no matter what Trump decides about GOP demands for abortion restrictions.
"You have a large enough contingent on the R side that don’t want them renewed at all."
www.politico.com/news/2025/11...
"You have a large enough contingent on the R side that don’t want them renewed at all."
www.politico.com/news/2025/11...
The big sticking point in the White House's health care proposal
For many GOP members, an expansion of abortion restrictions in Obamacare is a must-have in any tentative health care plan.
www.politico.com
November 26, 2025 at 2:07 PM
A deal to extend ACA subsidies for 10s of millions of people set to expire in December may be doomed — no matter what Trump decides about GOP demands for abortion restrictions.
"You have a large enough contingent on the R side that don’t want them renewed at all."
www.politico.com/news/2025/11...
"You have a large enough contingent on the R side that don’t want them renewed at all."
www.politico.com/news/2025/11...
Reposted by Michael Freeman
A reminder that this gif and a similar one for the transit method are on Wikimedia Commons for anyone to use.
I'm actually putting together a teaching dossier at the moment and I'd love to hear from people if you've used any of my gifs for teaching, outreach, or science stuff!
Links to gifs below:
I'm actually putting together a teaching dossier at the moment and I'd love to hear from people if you've used any of my gifs for teaching, outreach, or science stuff!
Links to gifs below:
Omgomg my gif demonstrating using the doppler/radial velocity method for detecting exoplanets was used in the latest PBS Space Time!!!!! 🤩
November 26, 2025 at 1:53 PM
A reminder that this gif and a similar one for the transit method are on Wikimedia Commons for anyone to use.
I'm actually putting together a teaching dossier at the moment and I'd love to hear from people if you've used any of my gifs for teaching, outreach, or science stuff!
Links to gifs below:
I'm actually putting together a teaching dossier at the moment and I'd love to hear from people if you've used any of my gifs for teaching, outreach, or science stuff!
Links to gifs below:
Nice friction video for #iTeachPhysics
Understanding Friction
YouTube video by The Efficient Engineer
www.youtube.com
November 25, 2025 at 3:30 PM
Nice friction video for #iTeachPhysics
November 24, 2025 at 8:56 PM
Reposted by Michael Freeman
A 6-year survey mapped the biggest structures in the universe. The results are beautiful...and, annoyingly, they fit nicely with the current model of cosmology.
We know there's something missing from that model, but figuring out *what* is not easy! 🧪🔭
news.uchicago.edu/story/scient...
We know there's something missing from that model, but figuring out *what* is not easy! 🧪🔭
news.uchicago.edu/story/scient...
November 23, 2025 at 3:18 PM
A 6-year survey mapped the biggest structures in the universe. The results are beautiful...and, annoyingly, they fit nicely with the current model of cosmology.
We know there's something missing from that model, but figuring out *what* is not easy! 🧪🔭
news.uchicago.edu/story/scient...
We know there's something missing from that model, but figuring out *what* is not easy! 🧪🔭
news.uchicago.edu/story/scient...
🎢 Found another relative motion illusion: @femaria on TikTok at nyc marathon
November 22, 2025 at 8:01 PM
🎢 Found another relative motion illusion: @femaria on TikTok at nyc marathon
Reposted by Michael Freeman
Are you fucking kidding me it’s like we are living in a cartoon
November 21, 2025 at 8:33 AM
Are you fucking kidding me it’s like we are living in a cartoon
Reposted by Michael Freeman
Maybe noise. Maybe music. www.desmos.com/3d/jhuvygmlvq
Bouncing Tone
www.desmos.com
November 18, 2025 at 2:45 AM
Maybe noise. Maybe music. www.desmos.com/3d/jhuvygmlvq
Reposted by Michael Freeman
Quick, quicker, less quick. Amandine Aftalion describes the trajectory of a 100m runner in this clip from her Oxford Mathematics Public Lecture.
Watch the full lecture here: youtu.be/UeGXwvXqUNA
Watch the full lecture here: youtu.be/UeGXwvXqUNA
October 22, 2025 at 3:28 PM
Quick, quicker, less quick. Amandine Aftalion describes the trajectory of a 100m runner in this clip from her Oxford Mathematics Public Lecture.
Watch the full lecture here: youtu.be/UeGXwvXqUNA
Watch the full lecture here: youtu.be/UeGXwvXqUNA
Fun visualization of a seismic response spectrum #iTeachPhysics
Espectros de Respuesta Sísmica
YouTube video by Simulitron Ingeniería de Simulación
youtu.be
November 21, 2025 at 10:49 PM
Fun visualization of a seismic response spectrum #iTeachPhysics
Reposted by Michael Freeman
For a little remix of @afreeparticle.com's "Rings of Fire", I 3D printed some magnetic hoops that students could stick to the lockers at any height and distance. For some classes, I gave groups a target time and some I gave a target horizontal distance.
November 20, 2025 at 12:02 AM
For a little remix of @afreeparticle.com's "Rings of Fire", I 3D printed some magnetic hoops that students could stick to the lockers at any height and distance. For some classes, I gave groups a target time and some I gave a target horizontal distance.
Reposted by Michael Freeman
Stripping insurance subsides from legal immigrants "could potentially trigger some local markets to go into death spirals,” experts warn. Yet there is little to no talk on Capitol Hill, even from Democrats, of reversing those cuts made this summer. www.politico.com/news/2025/11...
Legal immigrants face loss of Obamacare help, threatening insurance markets
The GOP megabill stripped subsidies from hundreds of thousands of green card holders and other legal migrants. Experts predict ripple effects for citizens.
www.politico.com
November 11, 2025 at 1:42 PM
Stripping insurance subsides from legal immigrants "could potentially trigger some local markets to go into death spirals,” experts warn. Yet there is little to no talk on Capitol Hill, even from Democrats, of reversing those cuts made this summer. www.politico.com/news/2025/11...
Reposted by Michael Freeman
November 6, 2025 at 5:03 PM
Reposted by Michael Freeman
In honor of the upcoming #WomenInPhysics Day, let's create a thread of amazing women physicists. I'll start with one my favorites, Chien-Shiung Wu, who is best known for conducting the Wu experiment, which proved that parity is not conserved. ⚛️ 🧪 👩🔬 🎢
November 4, 2025 at 10:54 PM
In honor of the upcoming #WomenInPhysics Day, let's create a thread of amazing women physicists. I'll start with one my favorites, Chien-Shiung Wu, who is best known for conducting the Wu experiment, which proved that parity is not conserved. ⚛️ 🧪 👩🔬 🎢
This year's edition of Rings of Fire!
Students are given initial height and velocity of the launched marble. Each group has to calculate the height of their ring at their assigned horizontal distance.
#EduSky #iTeachPhysics
Students are given initial height and velocity of the launched marble. Each group has to calculate the height of their ring at their assigned horizontal distance.
#EduSky #iTeachPhysics
November 3, 2025 at 11:00 PM
This year's edition of Rings of Fire!
Students are given initial height and velocity of the launched marble. Each group has to calculate the height of their ring at their assigned horizontal distance.
#EduSky #iTeachPhysics
Students are given initial height and velocity of the launched marble. Each group has to calculate the height of their ring at their assigned horizontal distance.
#EduSky #iTeachPhysics
Reposted by Michael Freeman
One of my favorite effects. They sense the environment with electricity and if both use the same frequency, signals collide. So they have to detune. But who goes up and who goes down on a matter of social dominance!! Oscillation as a social construct!!
Wow this is wild 🤯
🧪🎢⚛️🧬
🧪🎢⚛️🧬
Jamming avoidance response - Wikipedia
en.wikipedia.org
November 2, 2025 at 12:58 PM
One of my favorite effects. They sense the environment with electricity and if both use the same frequency, signals collide. So they have to detune. But who goes up and who goes down on a matter of social dominance!! Oscillation as a social construct!!
Wow this is wild 🤯
🧪🎢⚛️🧬
🧪🎢⚛️🧬
Jamming avoidance response - Wikipedia
en.wikipedia.org
November 2, 2025 at 12:04 AM
Wow this is wild 🤯
🧪🎢⚛️🧬
🧪🎢⚛️🧬
Reposted by Michael Freeman
Interesting question from 11yo Young Bill: what's the 'average' of a circle and a square? After a couple of questions, he clarified that he meant in terms of distance from their common centre, and he (quite impressively, imo) built the thing in Geogebra. I've […]
[Original post on mathstodon.xyz]
[Original post on mathstodon.xyz]
November 1, 2025 at 7:23 PM
Interesting question from 11yo Young Bill: what's the 'average' of a circle and a square? After a couple of questions, he clarified that he meant in terms of distance from their common centre, and he (quite impressively, imo) built the thing in Geogebra. I've […]
[Original post on mathstodon.xyz]
[Original post on mathstodon.xyz]