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Joel

@polyparadigm.bsky.social

Materials scientist:some range and depth, interested in making arcane topics a little more accessible. Prior place photo was from the aughts; figured I should update.

2,452 Followers  |  1,471 Following  |  14,486 Posts  |  Joined: 10.04.2023  |  2.325

Latest posts by polyparadigm.bsky.social on Bluesky

So this video is perfect and you should watch all of it but if you truly do not care about Christmas lights please skip to here (22 minutes in) for commentary on lighting in the LED age that pretty much every sighted person would benefit from consuming.

09.12.2025 05:20 โ€” ๐Ÿ‘ 111    ๐Ÿ” 16    ๐Ÿ’ฌ 3    ๐Ÿ“Œ 0

The shingles vaccine could lay me out for a week and I'd prefer that to shingles.

09.12.2025 03:24 โ€” ๐Ÿ‘ 1234    ๐Ÿ” 160    ๐Ÿ’ฌ 97    ๐Ÿ“Œ 16
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Pediatricians reject CDC advisersโ€™ guidance, plan to continue vaccinating all newborns against hepatitis B

Hospitals and health departments across the country say they're not planning to change their vaccination policy.

www.cidrap.umn.edu/c...

09.12.2025 00:41 โ€” ๐Ÿ‘ 224    ๐Ÿ” 78    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 6

I think โ€œthe presidentโ€™s allies are promising to destroy media institutions the president doesnโ€™t like to curry favor with himโ€ is very bad, actually

09.12.2025 03:19 โ€” ๐Ÿ‘ 1135    ๐Ÿ” 329    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 2

reaching into frostyโ€™s chest to grab the couple cold ones he smuggled into the club for us

07.12.2025 05:18 โ€” ๐Ÿ‘ 421    ๐Ÿ” 43    ๐Ÿ’ฌ 10    ๐Ÿ“Œ 0
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Congress to withhold Pentagon travel funds until it sees boat strike videos Lawmakers quietly stuck the requirement into their must-pass annual defense policy bill.

Very annoyed at this.
Congress knows how to use the power of the purse to get what it wants, but refuses to do it to, like, make sure that grants get to Head Start.
Just a total warping of priorities, using the power only in these narrow contexts and never to help poor people

09.12.2025 00:13 โ€” ๐Ÿ‘ 511    ๐Ÿ” 139    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 3
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Where my mind is today! โ˜น๏ธ๐Ÿ˜ž

08.12.2025 23:13 โ€” ๐Ÿ‘ 9    ๐Ÿ” 8    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

Progress report - I could bottle it now, it went quick!

09.12.2025 01:27 โ€” ๐Ÿ‘ 5    ๐Ÿ” 1    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

As makes sense when self-medicating with a lithium beverage I guess

08.12.2025 22:54 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
One of Igor's former masters had made a ticktock man, all levers and gearwheels and cranks and clockwork. Instead of a brain, it had a long tape punched with holes. Instead of a heart, it had a big spring. Provided everything in the kitchen was very carefully positioned, the thing could sweep the floor and make a passable cup of tea. If it wasn't carefully positioned, or if the ticking, clicking thing hit an unexpected bump, then it'd strip the plaster off the walls and make a furious cup of cat.
-Pratchett, Thief of Time

One of Igor's former masters had made a ticktock man, all levers and gearwheels and cranks and clockwork. Instead of a brain, it had a long tape punched with holes. Instead of a heart, it had a big spring. Provided everything in the kitchen was very carefully positioned, the thing could sweep the floor and make a passable cup of tea. If it wasn't carefully positioned, or if the ticking, clicking thing hit an unexpected bump, then it'd strip the plaster off the walls and make a furious cup of cat. -Pratchett, Thief of Time

these kinds of videos always prompt a certain Pratchett quote in my brain, from Thief of Time

08.12.2025 10:05 โ€” ๐Ÿ‘ 1901    ๐Ÿ” 182    ๐Ÿ’ฌ 15    ๐Ÿ“Œ 3
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can't stop watching this clip of a tesla Optimus teleoperator taking his headset off before properly logging out the robot

08.12.2025 09:29 โ€” ๐Ÿ‘ 24146    ๐Ÿ” 6780    ๐Ÿ’ฌ 333    ๐Ÿ“Œ 976
Why American Hubris Will Never Catch Up To Us

Why American Hubris Will Never Catch Up To Us

From The Archives: Why American Hubris Will Never Catch Up To Us

08.12.2025 21:30 โ€” ๐Ÿ‘ 2193    ๐Ÿ” 286    ๐Ÿ’ฌ 19    ๐Ÿ“Œ 7

I love that so many people on forums have sarcastically told people to rm -rf their machines that the llms have incorporated it.

08.12.2025 04:23 โ€” ๐Ÿ‘ 179    ๐Ÿ” 14    ๐Ÿ’ฌ 4    ๐Ÿ“Œ 1

Wurman is being pretty slippery with his definition of "purpose." There was extensive discussion about the impact of the Amendment on Chinese immigrants and "Gypsies," so they knew it would have a broader impact than just on children of freed people, and agreed on the interpretation of the words.

08.12.2025 03:05 โ€” ๐Ÿ‘ 568    ๐Ÿ” 87    ๐Ÿ’ฌ 19    ๐Ÿ“Œ 5

Seems likely thereโ€™s a functional need to re-state the questions and confirm framing, and emotionally-neutral phrasing can read as an attack:

โ€œLet me get this straight: you want me to scrape the sporadic minutes of this poorly-documented meeting series and just kind of guess which ones you ran?โ€

08.12.2025 03:34 โ€” ๐Ÿ‘ 9    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

This is also super great for people who celebrate other holidays around this time of year

Most of them have a long tradition of eating ham

Just such a thoughtful gift all around

08.12.2025 02:24 โ€” ๐Ÿ‘ 4    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Further evidence that widespread covid vaccination is better for everybody.

08.12.2025 01:03 โ€” ๐Ÿ‘ 1549    ๐Ÿ” 417    ๐Ÿ’ฌ 5    ๐Ÿ“Œ 2

Iโ€™m enthusiastic about sources but could be more careful regarding attribution of them

Iโ€™m a sourcerror

07.12.2025 23:27 โ€” ๐Ÿ‘ 2    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Absolutely epic ALT text

07.12.2025 20:14 โ€” ๐Ÿ‘ 167    ๐Ÿ” 50    ๐Ÿ’ฌ 9    ๐Ÿ“Œ 0

My Senator told me FedSoc judges keep ignoring his unambiguous laws so I asked how many laws he has and he said he just goes to the Congress and gets a new law afterwards so I said it sounds like heโ€™s just feeding unambiguous laws to FedSoc judges and then his chief of staff started crying.

07.12.2025 20:20 โ€” ๐Ÿ‘ 386    ๐Ÿ” 54    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 2

I find the seemingly standard public education/reenactor phrase, "every Roman soldier was a [combat] engineer" more than a bit frustrating.

Every Roman soldier could be a *laborer.* The legions also had much higher status specialist engineers, the praefectus fabrum or architectus.

Different jobs!

07.12.2025 20:17 โ€” ๐Ÿ‘ 415    ๐Ÿ” 31    ๐Ÿ’ฌ 8    ๐Ÿ“Œ 1
Steampunk-looking brass contraption with paper on a half-cylinder underneath a metal dome bristling with artfully engraved letter and number keys, with myriad knurled adjustment affordances of the sort one might find on Victorian optics equipment 

Looks like a film studioโ€™s props department was given a comfy budget and a brief of โ€œimpractical gothic typewriterโ€

But itโ€™s a legit early commercial typewriter

Steampunk-looking brass contraption with paper on a half-cylinder underneath a metal dome bristling with artfully engraved letter and number keys, with myriad knurled adjustment affordances of the sort one might find on Victorian optics equipment Looks like a film studioโ€™s props department was given a comfy budget and a brief of โ€œimpractical gothic typewriterโ€ But itโ€™s a legit early commercial typewriter

Have you heard about the Hansen Ball (famous from the 90s Dracula movie)

en.wikipedia.org/wiki/Hansen_...

07.12.2025 18:39 โ€” ๐Ÿ‘ 12    ๐Ÿ” 3    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Post image 07.12.2025 16:49 โ€” ๐Ÿ‘ 330    ๐Ÿ” 87    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 5

โญBREAKING: ICE is asking for people to quit calling its hotline to report an undocumented girl named 'Anne Frank' hiding in the attics of Republican lawmakers.

07.12.2025 06:50 โ€” ๐Ÿ‘ 359    ๐Ÿ” 110    ๐Ÿ’ฌ 6    ๐Ÿ“Œ 10

the birthright clause was not just written to wipe dred scott off of the books, it was written to repudiate the *idea* behind dred scott, you might say the larger *ideological project* of dred scott. and the whole of section 1 of the 14th amendment is a constitutional statement of political equality

06.12.2025 18:03 โ€” ๐Ÿ‘ 4392    ๐Ÿ” 796    ๐Ÿ’ฌ 13    ๐Ÿ“Œ 23

He only weighed 143 pounds, sure, but do you remember that time he moved Capitol Hill?

07.12.2025 06:44 โ€” ๐Ÿ‘ 7    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
Mr. Rogers and Officer Clemons have their feet in a kiddie pool in a 1969 episode of Mr Rogersโ€™s Neighborhood 

The foot washing part of it is probably a Bible reference but Fred Rogers insisted on casting a Black actor in this role, insisted on the characters being in a pool together 

It seems to me his purpose in doing so was to show viewers that John Brown and racial justice activists before and since are winning, to invite children to join this winning side, where one can have friends

Mr. Rogers and Officer Clemons have their feet in a kiddie pool in a 1969 episode of Mr Rogersโ€™s Neighborhood The foot washing part of it is probably a Bible reference but Fred Rogers insisted on casting a Black actor in this role, insisted on the characters being in a pool together It seems to me his purpose in doing so was to show viewers that John Brown and racial justice activists before and since are winning, to invite children to join this winning side, where one can have friends

That was a good episode, but not genre bending like the song cover or the Thor crossover comic elsewhere in this thread

07.12.2025 06:42 โ€” ๐Ÿ‘ 6    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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Excimer laser - Wikipedia

Very neat trick actually, what holds most lasers back is that any gain medium that has emitted light will immediately absorb that same frequency

But not if those two atoms immediately go on separate vacations, they wonโ€™t!

en.wikipedia.org/wiki/Excimer...

07.12.2025 06:12 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

very yes

07.12.2025 06:10 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

Like that, but without the water

or the air

or the hydrogen

or much of any kinetic barrier to attacking the very first atom it touches, even a fellow fluorine atom

07.12.2025 06:09 โ€” ๐Ÿ‘ 1    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0

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