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
Reposted by Jacobs Physics
Today's advice 🎢
October 1, 2026 at 5:51 PM
Today's advice 🎢
Discworld QOTD, from Mort
September 24, 2026 at 10:21 AM
How do I reduce over-reliance on friends, tutors, or LLMs in my AP Physics 1 class? I give targeted daily quizzes based on problem sets. Here's one example with free-fall kinematics. #iTeachPhysics
jacobsphysics.org/2026/09/16/t...
jacobsphysics.org/2026/09/16/t...
The Kinematics Window Problem, and a Daily Quiz to Check Understanding
I’ve assigned the problem below for many decades now. I *think* this came from an old Giancoli text. A falling stone takes 0.30 s to travel past a window 2.2 m tall, as shown above. Calculate…
jacobsphysics.org
September 17, 2026 at 12:57 AM
How do I reduce over-reliance on friends, tutors, or LLMs in my AP Physics 1 class? I give targeted daily quizzes based on problem sets. Here's one example with free-fall kinematics. #iTeachPhysics
jacobsphysics.org/2026/09/16/t...
jacobsphysics.org/2026/09/16/t...
Reposted by Jacobs Physics
Conservation of Momentum problem for #ITeachPhysics
September 13, 2026 at 4:14 PM
Conservation of Momentum problem for #ITeachPhysics
I'll be running a couple of one-day AP Physics 1 workshops this autumn! Oct 3 and Dec 12. See the post below for what I'm planning for the day!
jacobsphysics.org/2026/09/11/c...
jacobsphysics.org/2026/09/11/c...
College Board is bringing back one-day AP Physics workshops – online!
School has started here in central Virginia, and I’m up to my eyeballs in convincing students to read and use their fact sheets. Plus broadcasting soccer and football games via internet audio…
jacobsphysics.org
September 11, 2026 at 1:40 PM
I'll be running a couple of one-day AP Physics 1 workshops this autumn! Oct 3 and Dec 12. See the post below for what I'm planning for the day!
jacobsphysics.org/2026/09/11/c...
jacobsphysics.org/2026/09/11/c...
Reposted by Jacobs Physics
Whoever decided to promote Coyote vs Acme by letting Wile E do an AMA using only signs deserves all the praise.
September 2, 2026 at 9:13 PM
Whoever decided to promote Coyote vs Acme by letting Wile E do an AMA using only signs deserves all the praise.
Reposted by Jacobs Physics
![Comic. [Person standing holding hammer above raised knee.] PERSON: Listen up, leg. I’ve been sending you rich, oxygenated blood for years, while you send me worthless used-up blood with no oxygen. Time to teach you a lesson about not ripping me off! [caption] Tariffs](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreicenlzjvvtlegllp5khszuneez6ygyiq3d5g37oaqz5hkwoqhteru)
Reposted by Jacobs Physics
The Garden of Earthly Delights (detail), by Hieronymus Bosch, 1480-1505
August 29, 2026 at 5:39 PM
The Garden of Earthly Delights (detail), by Hieronymus Bosch, 1480-1505
Reposted by Jacobs Physics
This seems like a good time to remind everyone that the Browns just started building a new stadium with over $800 million in public money.
"A bad team with a bad quarterback who is also a bad human will lose badly every week while spectators feel bad about watching them, and the team/quarterback will try to make fans feel bad about feeling bad."
too-deep-zone.ghost.io/they-finally...
too-deep-zone.ghost.io/they-finally...
They Finally Built the Factory of Sadness from the Sci-Fi Classic "Never Build the Factory of Sadness."
Browns. Deshaun Watson. Exasperated shrug.
too-deep-zone.ghost.io
August 24, 2026 at 6:25 PM
This seems like a good time to remind everyone that the Browns just started building a new stadium with over $800 million in public money.
Of all the Ion ads tonight, the one that makes the least sense is our local Tr*mpist congressman advertising during women's soccer. #BAONPDX
August 23, 2026 at 2:43 AM
Of all the Ion ads tonight, the one that makes the least sense is our local Tr*mpist congressman advertising during women's soccer. #BAONPDX
Only one minute of stoppage time?!? Wow, I'll take that... but this one minute is lasting as long as a minute in a deep gravitational well. #BAONPDX
August 23, 2026 at 2:37 AM
Only one minute of stoppage time?!? Wow, I'll take that... but this one minute is lasting as long as a minute in a deep gravitational well. #BAONPDX
Nor do I want to see a promo graphic obscuring game action. Grrrr. #BAONPDX
Hey, Ion? I bought a bloody enormous television for a reason. I don't want 1/4 to 3/4 of the screen taken up by ads during game action. That was not the reason for the biggity. #BAONPDX
August 23, 2026 at 2:35 AM
Nor do I want to see a promo graphic obscuring game action. Grrrr. #BAONPDX
I think that second roar from the crowd was when the replay of the Sonis-on-Hanks violence showed in Providence Park.
But ball don't lie... Denver's shot ended up on a Multnomah Athletic Club stairmaster. #BAONPDX
But ball don't lie... Denver's shot ended up on a Multnomah Athletic Club stairmaster. #BAONPDX
August 23, 2026 at 2:33 AM
I think that second roar from the crowd was when the replay of the Sonis-on-Hanks violence showed in Providence Park.
But ball don't lie... Denver's shot ended up on a Multnomah Athletic Club stairmaster. #BAONPDX
But ball don't lie... Denver's shot ended up on a Multnomah Athletic Club stairmaster. #BAONPDX
Hey, Ion? I bought a bloody enormous television for a reason. I don't want 1/4 to 3/4 of the screen taken up by ads during game action. That was not the reason for the biggity. #BAONPDX
August 23, 2026 at 2:31 AM
Hey, Ion? I bought a bloody enormous television for a reason. I don't want 1/4 to 3/4 of the screen taken up by ads during game action. That was not the reason for the biggity. #BAONPDX
Does anyone else remember Tom and Jerry playing tennis, and Tom yanked the lines on the court so that Jerry's shot would be out? Sophia Wilson's reaction suggested that Tom might have yanked the post out of place. #BAONPDX
August 23, 2026 at 2:27 AM
Does anyone else remember Tom and Jerry playing tennis, and Tom yanked the lines on the court so that Jerry's shot would be out? Sophia Wilson's reaction suggested that Tom might have yanked the post out of place. #BAONPDX
Effects on my blood pressure:
Sophia Wilson on the ball, alone at midfield: Portland's Japanese Gardens.
Fleming trips at midfield resulting in a 4 on 3 counterattack: Washington DC rush hour traffic without express lanes.
#BAONPDX
Sophia Wilson on the ball, alone at midfield: Portland's Japanese Gardens.
Fleming trips at midfield resulting in a 4 on 3 counterattack: Washington DC rush hour traffic without express lanes.
#BAONPDX
August 23, 2026 at 2:17 AM
Effects on my blood pressure:
Sophia Wilson on the ball, alone at midfield: Portland's Japanese Gardens.
Fleming trips at midfield resulting in a 4 on 3 counterattack: Washington DC rush hour traffic without express lanes.
#BAONPDX
Sophia Wilson on the ball, alone at midfield: Portland's Japanese Gardens.
Fleming trips at midfield resulting in a 4 on 3 counterattack: Washington DC rush hour traffic without express lanes.
#BAONPDX
Ion could use some new commercials - lotta repeats. Good news is, the Carmax ads are solid even if they're on again and again and again. And I irrationally love the "I need a zevo!" bug zapper commercial, perhaps because I possibly need a zevo. #BAONPDX
August 23, 2026 at 1:50 AM
Ion could use some new commercials - lotta repeats. Good news is, the Carmax ads are solid even if they're on again and again and again. And I irrationally love the "I need a zevo!" bug zapper commercial, perhaps because I possibly need a zevo. #BAONPDX
No, commentators, it's not "savvy" for a keeper to prevent a ball to go out for a corner, whether or not Portland is good at set pieces. It's "playing soccer".
Oh, now we're being told how important set pieces will be tonight! Drink! #BAONPDX
Oh, now we're being told how important set pieces will be tonight! Drink! #BAONPDX
August 23, 2026 at 1:17 AM
No, commentators, it's not "savvy" for a keeper to prevent a ball to go out for a corner, whether or not Portland is good at set pieces. It's "playing soccer".
Oh, now we're being told how important set pieces will be tonight! Drink! #BAONPDX
Oh, now we're being told how important set pieces will be tonight! Drink! #BAONPDX
Not *just* the Thorns, but all teams in all sports nowadays: Can we please provide a one-page, text-only numerical roster that can be found easily with a simple online search or one click from the team homepage? #BAONPDX
August 23, 2026 at 1:03 AM
Not *just* the Thorns, but all teams in all sports nowadays: Can we please provide a one-page, text-only numerical roster that can be found easily with a simple online search or one click from the team homepage? #BAONPDX
60 million is quite cheap by today's standards. :-)
60 million down the drain,
Kai Havertz scores again!
Kai Havertz scores again!
August 21, 2026 at 7:21 PM
60 million is quite cheap by today's standards. :-)
On one hand, I finally found a streaming package that allows me to watch USA network without also paying for ISIS propaganda (i.e. F*x News). Yay. Pure sports package on Direct.
On the other hand, holy effing crap at the price. Don't think I can keep it past the promotion. We'll see.
On the other hand, holy effing crap at the price. Don't think I can keep it past the promotion. We'll see.
August 21, 2026 at 7:01 PM
On one hand, I finally found a streaming package that allows me to watch USA network without also paying for ISIS propaganda (i.e. F*x News). Yay. Pure sports package on Direct.
On the other hand, holy effing crap at the price. Don't think I can keep it past the promotion. We'll see.
On the other hand, holy effing crap at the price. Don't think I can keep it past the promotion. We'll see.
Reposted by Jacobs Physics
We go again. This time as Champions. COYG.
August 21, 2026 at 6:57 PM
We go again. This time as Champions. COYG.