Jacobs Physics
@jacobsphysics.bsky.social
Physics program consultant; sports broadcaster; umpire. (Edna fan art by @aldescery)
Official blog: https://jacobsphysics.org
Official blog: https://jacobsphysics.org
I recommend that teachers don't write comments on student work. But I violated that recommendation just once this year, and it seemed effective. Here's the story. #iTeachPhysics
jacobsphysics.org/2025/12/08/c...
jacobsphysics.org/2025/12/08/c...
Context of feedback, and writing notes on student work
Even though I tell physics teachers never to write feedback on student work, I did just that at the beginning of the week. Why did I diverge from my own advice? And, did it work? Usuall…
jacobsphysics.org
December 8, 2025 at 7:49 PM
I recommend that teachers don't write comments on student work. But I violated that recommendation just once this year, and it seemed effective. Here's the story. #iTeachPhysics
jacobsphysics.org/2025/12/08/c...
jacobsphysics.org/2025/12/08/c...
This is Mr. Paworotti. His favorite Christmas song is Howl-lelujah. If you'll excuse him, his solo is coming up. 13/10 (TT: therealpaworotti)
December 5, 2025 at 11:19 PM
Reposted by Jacobs Physics
"Or maybe
just maybe
Generative AI is a sack of wet garbage.
Do not use AI for search.
DO NOT USE AI FOR SEARCH."
just maybe
Generative AI is a sack of wet garbage.
Do not use AI for search.
DO NOT USE AI FOR SEARCH."
December 5, 2025 at 5:04 AM
"Or maybe
just maybe
Generative AI is a sack of wet garbage.
Do not use AI for search.
DO NOT USE AI FOR SEARCH."
just maybe
Generative AI is a sack of wet garbage.
Do not use AI for search.
DO NOT USE AI FOR SEARCH."
Ravens are already defeated. Monochrome purple? Really? Barf.
November 28, 2025 at 1:04 AM
Ravens are already defeated. Monochrome purple? Really? Barf.
Thoughts about what the physical space in my classroom/lab looks like, and designing such a space. #iTeachPhysics
jacobsphysics.org/2025/11/19/d...
jacobsphysics.org/2025/11/19/d...
Designing a physics laboratory space
Reader Logan shared with me some architectural plans, and asked: Our school is building, and I wanted your thoughts on how to design the physics space. I will have a physics-dedicated room for 8th …
jacobsphysics.org
November 19, 2025 at 8:19 PM
Thoughts about what the physical space in my classroom/lab looks like, and designing such a space. #iTeachPhysics
jacobsphysics.org/2025/11/19/d...
jacobsphysics.org/2025/11/19/d...
I can now say I’ve seen Trinity Rodman play in person. So there’s that!
November 15, 2025 at 7:00 PM
I can now say I’ve seen Trinity Rodman play in person. So there’s that!
19,000 here at Audi for NWSL semifinal. It’s awesome! It’s also an average crowd for a Thorns game. 😀
November 15, 2025 at 6:38 PM
19,000 here at Audi for NWSL semifinal. It’s awesome! It’s also an average crowd for a Thorns game. 😀
Spirit have come a long way since the half-filled Maryland SoccerPlex days…
November 15, 2025 at 6:25 PM
Spirit have come a long way since the half-filled Maryland SoccerPlex days…
Saved by VAR! Whoda think?
DagBURNit. 3.5 hours of travel, 4 minutes and the other team scores. 🤷♂️ #BAPNPDX
November 15, 2025 at 5:17 PM
Saved by VAR! Whoda think?
But I’ve already found four Thorns fans, and I’ve been through the gates for two minutes. 😀. #BAONPDX
Caught in the (puny, comparatively) supporters march. But of all that Thorns away games I’ve attended, this is the first time I’ve truly felt in enemy territory. #BAONPDX
November 15, 2025 at 4:23 PM
But I’ve already found four Thorns fans, and I’ve been through the gates for two minutes. 😀. #BAONPDX
Caught in the (puny, comparatively) supporters march. But of all that Thorns away games I’ve attended, this is the first time I’ve truly felt in enemy territory. #BAONPDX
November 15, 2025 at 4:20 PM
Caught in the (puny, comparatively) supporters march. But of all that Thorns away games I’ve attended, this is the first time I’ve truly felt in enemy territory. #BAONPDX
If…
Thorns playing Saturday noon at Audi Field - I can get there in three hours if the Metro doesn't break down! I've canceled my physics classes, and bought a ticket. I will be there, wearing my Sophia Smith* jersey. #BAONPDX
*She changed her name; my jersey didn't make the adjustment. :-)
*She changed her name; my jersey didn't make the adjustment. :-)
November 15, 2025 at 2:57 PM
If…
And my favorite Neve Jones got the start for G-H, saving the game with a desperate lunge to hold up Harlequins right at the halftime whistle. Toughest, strongest short woman I've ever seen other than my wife. :-)
Claire Thomas is in the Ray Hudson / Peter Drury / Vin Scully tier of poet-commentators. My gawd, I want to learn from this woman, and I want to listen to every rugby game that she calls. The Gloucester-Hartpury game last weekend was an epic! Glad I caught the replay.
November 14, 2025 at 2:03 AM
And my favorite Neve Jones got the start for G-H, saving the game with a desperate lunge to hold up Harlequins right at the halftime whistle. Toughest, strongest short woman I've ever seen other than my wife. :-)
Claire Thomas is in the Ray Hudson / Peter Drury / Vin Scully tier of poet-commentators. My gawd, I want to learn from this woman, and I want to listen to every rugby game that she calls. The Gloucester-Hartpury game last weekend was an epic! Glad I caught the replay.
November 14, 2025 at 2:01 AM
Claire Thomas is in the Ray Hudson / Peter Drury / Vin Scully tier of poet-commentators. My gawd, I want to learn from this woman, and I want to listen to every rugby game that she calls. The Gloucester-Hartpury game last weekend was an epic! Glad I caught the replay.
Won’t matter if they continue to put the final score on the replay thumbnail. Imagine if the posters for Empire Strikes Back had an arrow to Vader saying “Luke’s Dad!”
BREAKING: MLS will come out from behind the separate MLS Season Pass subscription beginning in 2026, per sources.
All games will be available on the Apple TV streaming service.
www.nytimes.com/athletic/680...
All games will be available on the Apple TV streaming service.
www.nytimes.com/athletic/680...
MLS, Apple TV to bring games outside of extra paywall in 2026: Sources
Beginning next season, MLS games will be even more accessible via Apple TV
www.nytimes.com
November 13, 2025 at 9:20 PM
Won’t matter if they continue to put the final score on the replay thumbnail. Imagine if the posters for Empire Strikes Back had an arrow to Vader saying “Luke’s Dad!”
Thorns playing Saturday noon at Audi Field - I can get there in three hours if the Metro doesn't break down! I've canceled my physics classes, and bought a ticket. I will be there, wearing my Sophia Smith* jersey. #BAONPDX
*She changed her name; my jersey didn't make the adjustment. :-)
*She changed her name; my jersey didn't make the adjustment. :-)
November 13, 2025 at 7:49 PM
Thorns playing Saturday noon at Audi Field - I can get there in three hours if the Metro doesn't break down! I've canceled my physics classes, and bought a ticket. I will be there, wearing my Sophia Smith* jersey. #BAONPDX
*She changed her name; my jersey didn't make the adjustment. :-)
*She changed her name; my jersey didn't make the adjustment. :-)
Woo! I've been off this platform this week because I wanted to watch the Thorns-Wave NWSL playoff game on delay. And the Thorns won! #BAONPDX
1/
1/
November 13, 2025 at 7:46 PM
Woo! I've been off this platform this week because I wanted to watch the Thorns-Wave NWSL playoff game on delay. And the Thorns won! #BAONPDX
1/
1/
The gravitation simulation "Milo's Solar System", a replacement for Phet's My Solar System after Flash was deprecated, has an updated url. See this post: #iTeachPhysics
jacobsphysics.org/2025/11/10/r...
jacobsphysics.org/2025/11/10/r...
Repost with update: Milo’s Solar System
Soon it is time for my AP physics class to move into gravitation. This is the one topic on the AP Physics 1 or C exams that doesn’t lend itself to tabletop experimentation. So we have to reso…
jacobsphysics.org
November 10, 2025 at 10:45 PM
The gravitation simulation "Milo's Solar System", a replacement for Phet's My Solar System after Flash was deprecated, has an updated url. See this post: #iTeachPhysics
jacobsphysics.org/2025/11/10/r...
jacobsphysics.org/2025/11/10/r...
Well now I know why my modified Atwood demo gave me the wrong tension on Monday…
Told the class I’d figure it out! Thank you! #iTeachPhysics
Told the class I’d figure it out! Thank you! #iTeachPhysics
Cool fact. Pasco wireless force probes and carts only work with the hooks they came with. A longer threaded hook interferes w/the flex of the strain gauge and prevents them from being calibrated. The one on the right is correct #ITeachPhysics
November 6, 2025 at 9:24 AM
Well now I know why my modified Atwood demo gave me the wrong tension on Monday…
Told the class I’d figure it out! Thank you! #iTeachPhysics
Told the class I’d figure it out! Thank you! #iTeachPhysics
Hey, @squidgerugby.bsky.social, could you help me? The play-by-play commentator for last weekend's Gloucester-Hartpury PWR match was *awesome*. I've heard her plenty of times before, in the World Cup and on other PWR matches last season. Who is she? Is she on Bluesky? [Thank you!] - greg
October 29, 2025 at 10:39 PM
Hey, @squidgerugby.bsky.social, could you help me? The play-by-play commentator for last weekend's Gloucester-Hartpury PWR match was *awesome*. I've heard her plenty of times before, in the World Cup and on other PWR matches last season. Who is she? Is she on Bluesky? [Thank you!] - greg
Premiership Women's Rugby back in season. @spuffyduds.bsky.social , the game is even more amazing on the 82" tv Shari bought me for my birthday. (Except for Harlequins' kit - that was abominable.) You gotta come watch with me some weekend!
October 26, 2025 at 2:39 PM
Premiership Women's Rugby back in season. @spuffyduds.bsky.social , the game is even more amazing on the 82" tv Shari bought me for my birthday. (Except for Harlequins' kit - that was abominable.) You gotta come watch with me some weekend!