Community Thursday

Jan. 15th, 2026 05:35 am
vriddy: Hawks smiling in flight (big smile)
[personal profile] vriddy

Community Thursday challenge: every Thursday, try to make an effort to engage with a community on Dreamwidth, whether that's posting, commenting, promoting, etc.


Over the last week...

Posted and commented on [community profile] bnha_fans.

Commented on [community profile] common_nature.

Commented on [community profile] goals_on_dw.

Signal boosts:

  • Someone asking dreamwidth styles/CSS questions on [community profile] dwresources, mentioning since I know a few of you are good with these.
  • Edit: Also LAST DAY to pledge for [community profile] getyourwordsout, if you wanted to participate this year!

Clouds Swimming over Lago Argentino

Jan. 15th, 2026 05:01 am
[syndicated profile] earthobservatory_iod_feed

Posted by Michala Garrison

Several narrow, white clouds resembling fish are visible over the teal waters of Lago Argentino. The landscape surrounding the lake is brown and barren. The left side of the image includes a label for Los Glaciares National Park.
December 27, 2025

When an astronaut aboard the International Space Station snapped this photograph of Lago Argentino in Patagonia on December 27, 2025, a school of fish-shaped clouds lingered over the glacial lake’s teal waters. Determining the clouds’ type and origin from the photograph alone is challenging, but several NASA scientists and university researchers offered a theory after reviewing the image.

“The lens shape reminds me of lenticular clouds, which usually form near or over mountains,” said Maria Hakuba, a research scientist in the aerosols and clouds group at NASA’s Jet Propulsion Laboratory. “The edges of the cloud also look quite smooth rather than ‘fuzzy,’ which suggests they’re ice clouds that are relatively high up.”

Lenticular clouds form as a result of lee waves, which develop when prevailing winds are forced up and over a topographic barrier, often a mountain range, and when the overlying air is stable. Air expands and cools at the crest of the waves, causing vapor to condense and form cloud droplets. Conversely, air on the other side of the waves descends, warming the air and causing the cloud to evaporate. The result is a set of seemingly stationary clouds that hover in place downwind of mountains. Lenticular clouds are often eye-catching, sometimes described as having shapes like almonds, upside-down dinner plates, lentils, flying saucers, or stacks of pancakes.

Hazem Mahmoud, a data science lead at NASA’s Langley Research Center, agreed that the clouds were likely lenticular and offered additional insight. MODIS (Moderate Resolution Spectroradiometer) data suggest cloud-top altitudes near 9,200 meters (30,000 feet) and cloud-top temperatures around 220 Kelvin, along with relatively large particle sizes consistent with the presence of ice crystals, he said. “The high altitude and microphysical properties suggest Cirrocumulus lenticularis,” he said.  

Strong surface-level winds common in Patagonia likely swept across the glacial lakes of Los Glaciares National Park, forcing unusually moist air over the Andes, producing the lens-shaped clouds. Sublimation—the conversion of ice directly into water vapor—of glacial ice likely contributed to their formation by adding extra moisture into the air, he added.

Wind shear and turbulence may have caused the elongated, trailing appearance that made the clouds resemble a school of fish, Mahmoud explained. These forces stretched and organized the clouds horizontally above the lake, while shadows cast onto the landscape accentuated their forms. “Together these clouds tell a remarkable story of interaction between the lake’s moisture source, the Andes’ dynamic topography, and atmospheric circulation,” he said.

Santiago GassĂł, an atmospheric scientist at NASA’s Goddard Space Flight Center, agreed they were likely lenticular clouds, citing the environmental context and Patagonia’s reputation as a hotspot for lenticular cloud formation.

“Very often the clouds here are stationary and trapped by lee waves on the downwind side of the mountains,” GassĂł said. “They often don’t precipitate because most of the moisture gets left on the west side of the mountain.” The stereotypical image of lenticular clouds is that they sit stationary at the top of mountains, but in reality, they tend to drift away “depending on the turbulence and flow,” he added.       

All three scientists agreed that without analyzing more data, it’s hard to say definitively whether the cloud is lenticular or a type of cumulus. The challenge with a single astronaut photograph or satellite image is that we largely see the cloud-top properties, Mahmoud said. “If we also had lidar or cloud radar data, we could measure the vertical structure and thickness and more confidently differentiate a thin lenticular layer from a deep cumulonimbus column,” he said.  

Whether cumulus or lenticular, it’s a coincidence that “fish” is the name atmospheric scientists sometimes use to describe formations of a type of shallow convective cloud found over the ocean. It was one of the patterns, along with “sugar,” “gravel,” and “flowers,” identified by a team of researchers who analyzed decades of MODIS cloud observations.

Readers with a penchant for cloud classification can participate in GLOBE Clouds, a GLOBE citizen science project that makes it possible for students and members of the public to contribute to NASA research projects. As part of the project, participants have the opportunity to use Clouds Wizard, a feature that guides users through cloud identification with a series of interactive questions, animations, and photos.

Astronaut photograph ISS074-E-8940 was acquired on December 27, 2025, with a Nikon Z9 digital camera using a focal length of 116 millimeters. It is provided by the ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit at NASA Johnson Space Center. The image was taken by a member of the Expedition 74 crew. The image has been cropped and enhanced to improve contrast, and lens artifacts have been removed. The International Space Station Program supports the laboratory as part of the ISS National Lab to help astronauts take pictures of Earth that will be of the greatest value to scientists and the public, and to make those images freely available on the Internet. Additional images taken by astronauts and cosmonauts can be viewed at the NASA/JSC Gateway to Astronaut Photography of Earth. Story by Adam Voiland.

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The post Clouds Swimming over Lago Argentino appeared first on NASA Science.

An update of update-y-ness

Jan. 14th, 2026 11:10 pm
soc_puppet: [Homestuck] God tier "Life" themed Dreamsheep (Sheep of Life)
[personal profile] soc_puppet
Just a drive-by update for the sake of updating.

1) Happy birthday to my younger brother today! I got him a shirt with a smiling Mimic that says "I'm still a treasure"

2) I made an appointment for tomorrow morning for the Career Services department at the local community college, so I'm another step closer on my goal of becoming more employed

And now I move on to my night time routine. G'night!

ubiquitous comic strips

Jan. 14th, 2026 09:10 pm
calimac: (Default)
[personal profile] calimac
A discussion elsewhere of the death of Scott Adams led to a consideration of how culturally ubiquitous Dilbert was in its heyday, however astonishing that may seem to those who only know it in its sad decline.

It's one of a series of strips that have held that status, with a new one close to waiting in the wings when the previous honoree begins to fade away.

I'm not sure how culturally ubiquitous early strips now honored as pioneers were - like The Yellow Kid (1895-98) and Krazy Kat (1913-44). The earliest one that I expect hit that status was Little Orphan Annie, which premiered in 1924, followed by Popeye the Sailor Man (first appeared in Thimble Theatre 1929). Those two are still cultural touchstones today, and I suspect they were heavily popular at the time; certainly Popeye soon made the jump to animated cartoons.

The next one I know about was Barnaby by Crockett Johnson (later of Harold and the Purple Crayon fame). This strip about a little boy and his louche fairy godfather Mr. O'Malley had a short run (1942-52) and is now pretty much forgotten except among those who've collected reprint volumes of it. But it was a big hit among commentators and SF fans, at least: the Berkeley SF club, founded in 1949 and still around when I joined in the late '70s, adapted its name - the Elves', Gnomes', and Little Men's Science Fiction, Chowder and Marching Society ("Little Men" for short) - from the name of Mr. O'Malley's social club in the strip.

Barnaby kind of puttered off in its later years, and allegiance switched to Pogo by Walt Kelly, which started in 1948 and quickly became very popular, not least for its wicked political commentary, with characters like Simple J. Malarkey, a parody of Joe McCarthy. Kelly wrote songs for the strip which were published and recorded, both originals and his still-famous fractured Christmas carol lyrics, "Deck Us All With Boston Charlie."

Pogo had its several-year run as the cultural ubiquity and then faded a bit into the background, to be replaced by the biggest cultural powerhouse of them all, Peanuts by Charles M. Schulz, which started in 1950 but took a few years to hit its stride. But during the 1960s, at least, it pervaded American culture to an extent hard to believe if you didn't experience it. And its pervasiveness popped up spontaneously from outside sources. There were books about it (this one, from 1965, was a collection of Christian sermons using the strip as textual illustrations, and this unlikely thing became a bestseller); there were songs (I first heard this one sung by the kids on the bus to camp in 1966 and I still know all the lyrics); NASA even named manned spacecraft after Peanuts characters.

But the strip faded from cultural intensity quickly after 1970, despite having another 30 years to run during which it maintained its prominence on the comics page. The cultural hit of the 1970s was undoubtedly Doonesbury by Garry Trudeau, which began in 1970. Plotted more like a soap opera than any of its predecessors, Doonesbury was even more explicit politically than Pogo. (This one, among others, won Trudeau the Pulitzer Prize for editorial cartooning.)

Doonesbury took a hiatus in 1983-4 and then rebooted itself; it was still popular, but the torch of cultural ubiquity quickly passed to Calvin and Hobbes by Bill Watterson, which ran 1985-95; uniquely among these creators, Watterson stopped the strip before he could run out of steam. And then Dilbert, which began in 1989 and had built up its renown by the time Calvin and Hobbes signed off.

Dilbert started to fade by the mid-2000s. Since then, I dunno - newspaper strips as a cultural icon have faded with the fall of print. In my circles, maybe xkcd by Randall Munroe, which came along in a very timely fashion in 2005, but I'm not sure how commonly-known it is generally, and it's not even a strip in the traditional fashion. But that's where I think we are now.
erinptah: (pyramid)
[personal profile] erinptah

A thing I kept noticing in The Secret Commonwealth: any time someone brought up Dust, as in Rusakov particles, it went by fast. One character would mention it — another one might react — but then the conversation would move right along to something else.

The original HDM trilogy did a really solid job with this concept. Lyra first hears about it as one of many mysterious Scholar Things she spies on without understanding. When she gets a child-friendly explanation, it’s the Church-doctrine propaganda version. Readers follow along with her, and later with other POV characters, building out our knowledge as they hear more perspectives and see more experimental results.

There are good reasons Dust wouldn’t come up much in La Belle Sauvage. It’s a flashback, so even the experts are 10 years’ less knowledgeable, and young Malcolm (unlike Lyra) isn’t interacting with those experts much in the first place. If anything, the Rusakov physics in that book felt kinda shoehorned in. Bonneville is a Rusakov researcher, Malcolm finds his notes…then Mal keeps asking about it (even though it’s not relevant to surviving the flood, and he has no reason to expect it would be), and Bonneville keeps giving accurate answers (even though he has no motive to be honest, and every motive to make up something scary/demoralizing).

But TSC is a flash-forward. They have all the discoveries of HDM, plus another 10 years’ worth of research. A bunch of the main characters are professionally interested. This would be the point in the trilogy where you get to properly reintroduce Dust to the reader!

And instead…well, here are all the times it comes up:

 


Outgunned 1

Jan. 14th, 2026 09:59 pm
james_davis_nicoll: (Default)
[personal profile] james_davis_nicoll
My Outgunned game is a spy thriller of sorts. I thought it would be fun to skip the usual "characters start together, get briefed, plot their mission together" and so on, I'd start with three of the five breaking into an apartment. They are 14-year-old Diane Dean (the driver), 18-year-old Concordia Butterstein (unsanctioned intrusion and asset acquisition expert) and 70-year-old Jethro Winthrop (the smooth talking fellow who hired the other two because they offered the best value for price)

Read more... )
petra: CGI Obi-Wan Kenobi with his face smudged with dirt, wearing beige, visible from the chest up. A Clone Trooper is visible over one shoulder. (Obi-Wan - Clones ftw)
[personal profile] petra
The other day, I posted If you wanna know if he loves you so, a 150-word story about a boy meeting his soulmate(s)(?).

I included discussion questions in the first comment because I had recently had a Tumblr conversation with [personal profile] teland where I linked her to someone floating the possibility of discussion questions on fanfiction with the implication that the questions, and responses, would be AI slop.

She responded by writing discussion questions for her seminal DC Comics identity porn story, A clarification of range, written before we called it "identity porn" and long before the term got diluted into "X doesn't know Y's secret identity... yet!" which is more properly, if less catchily, (if I do say so myself) anagnorisis.

If you have any knowledge or inquisitiveness whatsoever about DC Comics, run, do not walk, to read or reread that story. I still laugh about it regularly, and I have to remind myself it's not canon. I read it before I read any of Young Justice or the relevant Teen Titans, and it built foundational parts of my characterization.

Here are [personal profile] teland's questions:
Students! Did you know 'The End' is just the beginning? Follow along with me, and the story will never die! )

My response was:

Tonight’s homework: Read Whither Kelvin Trillion, Wither the Republic (Star Wars: The Clone Wars, Explicit, the one in which one character writes filthy limericks about everyone else in canon worth boinking and a few who aren’t.)

Pre-reading: Given your knowledge of the author, speculate on the pairings.

Discussion Questions )

TĂ© and I had a good laugh about it.

Then we got talking about soulmates as a trope, and I wrote the story linked at the top with discussion questions.

[personal profile] sanguinity's comment threw me bodily to the floor, convulsed with giggles of joy. It's considerably longer than the drabble-and-a-half I wrote and shows an attention to detail I cannot but applaud.

I may have broken kayfabe in my response. Can you blame me?

See, sometimes a good grade in commenting is normal to want and possible to achieve. I definitely got a good grade on the story and questions, so it's only fair.

But it's not a perfect grade, due [personal profile] sanguinity having good enough taste not to have watched the Star Wars prequels. Gotta deduct points for not reading the deeply silly text.

Poetry Fishbowl Update

Jan. 14th, 2026 08:58 pm
ysabetwordsmith: Cartoon of me in Wordsmith persona (Default)
[personal profile] ysabetwordsmith
The Call for Themes is still open if you want to suggest topics for early 2026. Now's the time, because I hope to post the poll on Thursday.

Don't even try.

Jan. 14th, 2026 09:48 pm
hannah: (Sam and Dean - soaked)
[personal profile] hannah
Today I learned a photo-scanning app has a number of embedded ads that show up after a certain number of photos, exhorting you to buy a subscription rather than keep using the free version. You can't skip them, either. It left a bad taste in my mouth. What made the taste worse was finding out you can't just delete your account: you need to send the company a request to do that.

For an app designed to scan photographs to convert physical media into digital information, all the better to easily share some photographs from the Twentieth Century. I'd have thought that the added bonuses from a paid account would be enough to entice some purchases, and they try to get your money even while using the bare-bones, no-frills version that's fairly limited in scope and capabilities. While you're already using it.

It's further cemented my position to generally avoid apps on principle. That principle being "I don't have time for bullshit."

Snowflake Challenge #7

Jan. 15th, 2026 10:56 am
snowynight: colourful musical note (Default)
[personal profile] snowynight
Challenge #7

LIST THREE (or more) THINGS YOU LIKE ABOUT YOURSELF. They don’t have to be your favorite things, just things that you think are good. Feel free to expand as much or as little as you want.
  1. I don't have known allergy nor nasty side effects to medication I  have taken. This makes my life easier. 
  2. I can take pills without drinking water. It's handy when no water is available. 
  3. My mind often comes up with ideas that entertains me.