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@hikingdude@mastodon.social
2026-07-20 17:50:12

#mountainMonday ! Unfortunately not a recent photo but one that's quite a while ago. Before my wife had 2 knee issues. But maybe we can go there again soon.
As you can see, the landscape there is A BLAST! I totally love the area
#mountains

This image captures a breathtaking and rugged mountain landscape, evoking a sense of adventure and natural grandeur. A narrow, winding dirt trail cuts through the scene, leading the viewer's eye deeper into the majestic valley. The trail is flanked by rocky outcrops and patches of green vegetation, adding texture and contrast to the rugged terrain. To the right of the trail, a steep, rocky cliff rises dramatically, its gray and brown hues showcasing the raw beauty of the mountain. The cliff's r…
@leftsidestory@mstdn.social
2026-05-21 00:30:06

Urban Ridicules ❌
都市的愚弄 ❌
📷 Pentax 6x7
🎞️ Ilford HP5 Plus 400 (6x7)
If you like my work, Support by buying me a coffee or a roll of film from PayPal paypal.com/paypalme/ydcdingsite

Ilford HP5 Plus 400 (6x7) ##English Black and white photograph of a church facade. The building features a central tower with a cross at the top. A statue of a robed figure stands in a niche above the main entrance. Flanking the entrance are two statues on pedestals. Above the entrance, Chinese characters are visible. Two clocks are embedded in the facade on either side of the entrance. A Chinese flag flying on a flagpole to the front of the building. ##中文 黑白照片，展示一座教堂的正立面。建筑中央有一座塔楼，顶部立有十字架。主入口…
Ilford HP5 Plus 400 (6x7) ##English Black and white photograph of an urban scene. A tall, cylindrical smokestack rises above a cluster of low-rise buildings with bare trees in the foreground. Overhead, a network of power lines crisscrosses the sky. In the background, a tall modern skyscraper is partially visible through the haze. ##中文 黑白照片，展示城市景观。一根高大的圆柱形烟囱耸立在一群低层建筑之上，前景是光秃秃的树木。上方是交错的电线网络。背景中，一座高大的现代摩天大楼在雾霭中若隐若现。
Ilford HP5 Plus 400 (6x7) ##English Black and white photograph of an object viewed from below. The object has a textured surface and consists of multiple steps leading upwards. The steps are framed by a window on both sides. The perspective emphasizes the height and angle of the object. ##中文 黑白照片，从下方拍摄的物体。物体表面有纹理，由多个台阶向上延伸。物体透过窗框构图。透视角度强调了楼梯的高度和倾斜度。
Ilford HP5 Plus 400 (6x7) ##English Black and white photograph of a traditional Chinese tiled roof. The roof features intricate, layered tiles with small figurines lined up along the ridges. The angle of the shot captures the curve and detail of the roof's edge, with a portion of the sky visible in the background. ##中文 黑白照片，展示传统中式瓦顶。屋顶由层叠的瓦片构成，屋脊上排列着小型人形装饰。拍摄角度展现了屋顶边缘的曲线和细节，背景中可见部分天空。
@arXiv_physicsfludyn_bot@mastoxiv.page
2026-05-19 08:13:44

Solutocapillary instability in slipping falling films
Sanghasri Mukhopadhyay, S\'everine Millet, Bastien Di Pierro, Asim Mukhopadhyay
arxiv.org/abs/2605.17519 arxiv.org/pdf/2605.17519 arxiv.org/html/2605.17519
arXiv:2605.17519v1 Announce Type: new
Abstract: We present a comprehensive framework for gravity-driven, surfactant-laden thin films flowing over slippery substrates, elucidating how wall slip modifies the coupled hydrodynamics and interfacial transport. A long-wave model is formulated with a conservative bulk-surface mass balance and a Navier slip condition. The Orr-Sommerfeld eigenvalue problem governs the linear regime, while a weighted-residual model captures the nonlinear evolution over a range of equilibrium surfactant coverages, Marangoni strengths, and adsorption kinetics. The analysis predicts a non-monotonic variation of the critical Reynolds number with equilibrium coverage, exhibiting a maximum at intermediate $\Gamma_e$, and a slip-induced transition from single- to double-hump solitary structures with increasing Marangoni number, accompanied by attenuated capillary ripples. Under fast adsorption kinetics, the surface field homogenizes, preserving the mean film shape and flux while flattening both the surface concentration $\Gamma$ and the bulk inventory $\chi h\phi$. A spurious interfacial mass growth reported by Pascal et al.(PRF, 2019) and D'Alessio et al.(JFM, 2020) is resolved through a revised surface balance ensuring strict conservation. Wall slip thus emerges as a key control parameter, reducing viscous resistance and mitigating Marangoni back-stress. The slip parameter $\beta$ is a useful control knob for surfactant-laden films. Slip prevents fragile multi-hump bound states, promoting a single broad crest or an almost flat, uniform sheet by carefully bonding $\beta$ to wave selection, ripple damping, and the bulk-surface surfactant balance.
toXiv_bot_toot

@leftsidestory@mstdn.social
2026-05-20 02:36:48

Urban Fallacies ❌
城市谬误 ❌
📷 Pentax 6x7
🎞️ Ilford HP5 Plus 400 (6x7)
If you like my work, Support by buying me a coffee or a roll of film from PayPal paypal.com/paypalme/ydcdingsite

Ilford HP5 Plus 400 (6x7) English A black-and-white photograph of a church facade with classical architecture. The building features a central entrance with a triangular pediment, columns, and statues of religious figures. Above the entrance, there is a cross at the top. The church is flanked by tall, modern high-rise buildings. A flagpole with a flag is visible on the right side. 中文 一张黑白照片，展示了一座具有古典建筑风格的教堂正面。建筑物中间有一个三角形山墙的入口，两侧有柱子和宗教人物的雕像。入口上方顶部有一个十字架。教堂两侧是高大的现代高层建筑。右侧可以看到一根旗杆和一面旗帜。
Ilford HP5 Plus 400 (6x7) English A black-and-white photograph of a cylindrical building with a domed roof. The structure features classical architectural elements, including columns and statues of angels. The building is partially obscured by bare tree branches in the foreground. The sky is clear, and the image captures the contrast between the classical and modern elements in the background. 中文 一张黑白照片，展示了一座带有圆顶屋顶的圆柱形建筑。建筑物具有古典建筑元素，包括柱子和天使雕像。建筑物部分被前景中光秃秃的树枝遮挡。天空晴朗，图像捕捉了古典与现代元素之间的对比。
Ilford HP5 Plus 400 (6x7) English A black-and-white photograph of a bustling street. The scene includes several food stalls with tables, chairs, and cooking equipment. A man is seated at a table on the right, while other people are walking or standing in the background. Bare trees line the street, and buildings with balconies and signs in Chinese characters are visible. 中文 一张黑白照片，展示了一个热闹的街头。场景中有几个食品摊位，摆放着桌子、椅子和烹饪设备。右侧有一名男子坐在桌子旁，其他人在背景中行走或站立。光秃秃的树木排列在街道两侧，可以看到带有阳台和中文字标志的建筑。
Ilford HP5 Plus 400 (6x7) English A black-and-white photograph showing a chef in a white hat and apron, visible through a rectangular window. The chef appears to be working in a kitchen. Above the window, a hanging light fixture with a cylindrical shade is mounted on the wall. The window reflects some indoor elements, including a sign with Chinese characters. 中文 一张黑白照片，通过一个矩形窗户可以看到一位戴白色厨师帽和围裙的厨师。厨师看起来正在厨房工作。窗户上方的墙上悬挂着一个带圆柱形灯罩的灯具。窗户反射出一些室内元素，包括一个写有中文字的标志。
@tiotasram@kolektiva.social
2026-06-15 23:26:16

Just finished "Oksi" by Mari Ahokoivu. A wonderful example of a contemporary myth, and very beautifully drawn. Ahokoivu's ability to evoke feelings with abstract forms and mist-like flowing "panels" make this wonderfully unique, and her story captures all the whimsy and contradictions of an ancient creation myth perfectly.
#AmReading #ReadingNow #Bookstodon

@cdarwin@c.im
2026-05-05 03:31:01

The Trump administration ramps up its lawlessness on the seas

U.S. military strikes on suspected drug smugglers spike after a lull following Maduro’s capture.
washingtonpost.com/opinions/20

The Trump administration ramps up its lawlessness on the seas
U.S. military strikes on suspected drug smugglers spike after a lull following Maduro's capture.

@hikingdude@mastodon.social
2026-07-15 16:50:30

During our vacation recently, I tried to practice more foreground and composition for .. not for documenting our vacation, but to capture more a feeling that I had at this moment.
This is one of the photos. Here it felt "better" to me to set the focus to the red poppies because at this moment, they just drew more attention as we were walking towards the gate.
More of this day:

This image captures a picturesque and serene scene featuring a historic building, likely a monastery or church, set against a lush, natural backdrop. The building is characterized by its white walls with red trim, a steeply pitched red roof, and an arched entrance. Atop the roof, there are statues of religious figures, adding a sense of grandeur and historical significance to the structure. In the foreground, a vibrant meadow stretches out, dotted with red poppies and other wildflowers. The con…
@cdarwin@c.im
2026-07-12 05:57:03

Videos show ICE’s pursuit of immigrant’s van before Houston shooting
Videos that capture the minutes leading up to and immediately after an Immigration and Customs Enforcement agent fatally shot an undocumented Mexican immigrant in Houston early Tuesday morning
show agents aggressively following a white work van and then approaching the vehicle on foot.

Security camera footage from nearby businesses and residences, obtained and analyzed by The Washington Post, provides a n…

What videos show about ICE’s pursuit of immigrant’s van before Houston shooting
Surveillance footage captures ICE agents in unmarked vehicles pursuing the van Lorenzo Salgado Araujo was driving.

@hikingdude@mastodon.social
2026-05-16 16:26:36

Here's one more photo from last weekend's hike.
I'm just SOOOO happy that I was out and about last weekend. Today it's rainy and cold and the snow line dropped again. It could indeed be that this photo would now be covered in snow.
But last week, it was just a nice walk up there.
#hiking

This image captures a serene and rugged forest landscape, viewed from an elevated perspective. The scene is dominated by a winding dirt trail that meanders through a dense woodland. The trail is flanked by a variety of evergreen trees and shrubs, their vibrant green foliage creating a lush and natural canopy. The trail itself is narrow and appears well-trodden, suggesting it is a popular path for hikers or nature enthusiasts. The path is bordered by a mix of rocks, fallen branches, and patches …
@hikingdude@mastodon.social
2026-06-14 12:06:18

Last day of vacation! We just did a small walk to our local hill. The clouds in the south look pretty grey, while it looked nice in the north.
We have a relaxing day today, a real #silentsunday.
#hiking

This image captures a serene and inviting hiking trail winding through a lush, natural landscape. The trail, made of dirt and small stones, meanders gently through a meadow filled with tall grass and wildflowers, adding a sense of adventure and tranquility to the scene. The path is flanked by dense vegetation, including bushes and small trees, their vibrant green leaves creating a natural border. To the right of the trail, a cluster of taller trees stands, their foliage a rich green, suggesting…
This image captures a breathtaking and expansive mountain landscape, blending the beauty of nature with a sense of vastness and tranquility. The foreground is dominated by a lush meadow filled with tall grass and a variety of wildflowers, including white daisies with yellow centers. The vibrant colors of the flowers add a touch of charm and natural beauty to the scene. Beyond the meadow, the landscape opens up to reveal a stunning valley with rolling hills and dense forests. The hills are cover…