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@UP8@mastodon.social
2025-09-16 18:19:26

🧚 Sustainable energy: 'Fairy circles' can provide clues to depth of natural hydrogen sources
phys.org/news/2025-09-sustaina

Sustainable energy: 'Fairy circles' can provide clues to depth of natural hydrogen sources
Natural hydrogen from deep underground could be an important building block for the sustainable energy system of the future, but it is currently still difficult to predict where and at what depth elevated concentrations are located. New study results from the Department of Geology at the University of Vienna could make such predictions easier in the future. So-called "fairy circles"—round patches with vegetation damage—could be helpful indicators. This is because these "fairy circles" subsi…

@chris@mstdn.chrisalemany.ca
2025-08-17 18:59:31

This is the manifold typt thing that I am currently roughing together for the 2nd pump from the main pond.
The through pipe will go to the filter and the two offshoots will go to the bottom returns and side sorayers which are both meant to keep the water in the pond moving toward the pump bay and discourage settling on the bottom
#poolpond #diy #backyardproject

@AimeeMaroux@mastodon.social
2025-08-17 10:29:19
Content warning:

It's the #DayOfHelios / Sol's Day / #Sunday! ☀️
"Sol puts on his diadem of myriad rays and the corselet woven of twelve stars [the zodiac constellations] and bound by the belt which athwart the rain-clouds shows for men its many hued bow."
Valerius Flaccus, Argonautic…

Mosaic of Helios as part of the Mosaic of the Planetarium. We see his bust inside a circle, decorated by an outer circle of decorative leaves. Helios wears a dark fabric on his right shoulder, likely a chlamys cloak. His curly hair falls to his shoulders and his head is illuminated by an aureola with 12 spikes.
@arXiv_csCV_bot@mastoxiv.page
2025-07-16 10:36:41

C-FBI: A Combinatorial method using Convolutions for Circle Fitting in Blurry Images
Esteban Rom\'an Catafau, Torbj\"orn E. M. Nordling
arxiv.org/abs/2507.11476

C-FBI: A Combinatorial method using Convolutions for Circle Fitting in Blurry Images
This paper addresses the fundamental computer vision challenge of robust circle detection and fitting in degraded imaging conditions. We present Combinatorial Convolution-based Circle Fitting for Blurry Images (3C-FBI), an algorithm that bridges the gap between circle detection and precise parametric fitting by combining (1) efficient combinatorial edge pixel (edgel) sampling and (2) convolution-based density estimation in parameter space. We evaluate 3C-FBI across three experimental framewor…

@midtsveen@social.linux.pizza
2025-09-16 15:04:47

I'm not usually one for spiritual ideas, but Hofmann makes a compelling point. Capitalism has deeply disconnected us, from nature and from one another.
I still believe that protests, organizing, and direct action are what truly drive change. Yet, shifting our perspective is just as crucial.
#SpiritualCrisis

Black background with a circular sepia-toned image of Albert Hofmann, a chemist, in a laboratory at the top. Below, white text displays a quote from him: “I share the belief of many of my contemporaries that the spiritual crisis pervading all spheres of Western industrial society can be remedied only by a change in our world view. We shall have to shift from the materialistic, dualistic belief that people and their environment are separate, toward a new consciousness of an all-encompassing real…
@chris@mstdn.chrisalemany.ca
2025-08-16 17:26:11

3 out of 7 recommended news stories are about Trump failing.
I would be happier about it if it did not imply Putin was winning. This is bad for everyone, but especially Ukraine.
Trump’s ego, fealty, and idiocy is going to destroy the world if Europe, the Global South, and other democratic nations don’t take the reins from the USA.
#russiaukrainewar #russia #ukraine

@peterhoneyman@a2mi.social
2025-07-17 18:07:52

i was put in charge of three grandchildren for a few hours yesterday so we headed straight to ben & jerry's to split a milkshake, then explored the state theater (and even sneaked into a movie but later got thrown out for horsing around on the escalator), then i gave a nickel tour of angell/mason/haven halls, then they chased squirrels on the diag which took longer than you might think, then we looked in all the windows in nickels arcade. it all went slowly and well.

A four-, five-, and a six-year old are seated in a booth with a bright orange tabletop in front of a purple each with a small cup containing vanilla milkshake. They're eating with straws and spoons. So far, it is not a messy disaster. This is a cheerful photo of three children enjoying milkshakes at a restaurant booth. The setting is a classic ice cream parlor with its distinctive blue and yellow booth seating and black-and-white checkered floor. The children are seated around a bright orange…
This photo shows three children sitting together on a wooden bench in a public building. The setting has large windows in the background showing green grass and trees outside, with some chairs and bicycles visible through the glass. On the left is a girl with shoulder-length blonde wavy hair wearing a light pink/lavender t-shirt with a sparkly design paired with light blue shorts and pink Crocs-style shoes. In the middle is a girl with her hair in small buns or pigtails, wearing a light blue d…
This photo shows the Michigan diag, a public green space with a concrete sidewalk running along the right side. The area features a well-maintained grassy lawn with several young trees planted throughout, each surrounded by dark mulch circles. The trees appear to be newly planted or relatively young. In the background, there are mature, established trees providing a canopy of green foliage. White banners or flags can be seen hanging from poles, though the text on them isn't clearly visible. Th…
@arXiv_astrophEP_bot@mastoxiv.page
2025-09-16 09:45:06

Origin of the lunar farside highlands from Earthshine-induced global circulation in lunar magma ocean
Wenshuai Liu
arxiv.org/abs/2509.11199

Origin of the lunar farside highlands from Earthshine-induced global circulation in lunar magma ocean
The lunar farside highlands, referred to as the lunar farside thicker crust compared with the nearside crust, presents a challenge to the theory of formation and evolution of the Moon. Here, we show that, after the Moon reached synchronous rotation, Earthshine could induce global circulation in lunar magma ocean due to the imposed surface temperature gradient generated by the hot, post-giant impact Earth. The global circulation, generating downwellings on the farside and a deeper return flow on…

@leftsidestory@mstdn.social
2025-09-18 00:30:01

On The Road - To Xi’An/ Mordern Relics
在路上 - 去西安/ 现代遗风
📷 Pentax MX
🎞️Fujifilm Neopan F, expired 1993
#filmphotography #Photography #blackandwhite

FUJIFILM NEOPAN F (FF) English Alt Text: A traditional East Asian-style building with a tiered, pagoda-like roof stands beside a calm body of water. The structure has slanted walls and overhanging eaves. In front, rocks and shrubs are arranged in a landscaped area. The water reflects the building, creating a symmetrical and serene composition. The architecture suggests Japanese or Chinese influence. 中文替代文字： 一座具有东亚风格的传统建筑坐落在宁静的水边，屋顶呈多层塔状，檐角上翘。建筑前方是布置有岩石和灌木的园林区域。水面清澈，倒映出建筑的轮廓，形成对称而宁静的画面。建筑风格可能受…
FUJIFILM NEOPAN F (FF) English Alt Text: A large building with East Asian architectural features, including a multi-tiered roof with upturned eaves, stands elevated behind a wide stone bridge. The bridge has decorative railings and lamp posts. A few people walk toward the entrance. The facade combines traditional stone carvings with modern glass panels. The image is in black and white, giving it a timeless, documentary feel. 中文替代文字： 一座大型建筑融合了东亚建筑元素，屋顶多层且檐角上翘。建筑高于地面，通过一座宽阔的石桥连接，桥上有装饰性栏杆和灯柱。几人正…
FUJIFILM NEOPAN F (FF) English Alt Text: A close-up of a stone or ceramic sculpture depicting a stylized human face. The figure wears a headpiece and a garment that wraps around the neck. The lighting is dramatic, casting shadows that emphasize the contours of the face and upper torso. The background is dark with soft circular light spots, creating a bokeh effect. The craftsmanship highlights cultural or historical significance, with attention to facial expression and texture. 中文替代文字： 这是一张石雕或…
FUJIFILM NEOPAN F (FF) English Alt Text: Two bird sculptures are placed on a bed of white pebbles outdoors. One resembles a swan with its neck curved downward, and the other resembles a crane with a long neck and pointed beak. The area is landscaped with grass and adjacent to a modern building with glass windows and metal framework. A person is visible inside the building, adding scale and context. 中文替代文字： 户外场景中，两只鸟类雕塑安置在白色鹅卵石上。一只像天鹅，脖子向下弯曲；另一只像鹤，长颈和尖嘴朝地面。周围有草地，旁边是一座现代建筑，带有玻璃窗和金属结构。建筑内可见一人，增强…
@chris@mstdn.chrisalemany.ca
2025-08-17 00:50:29

I would just like to express solidarity with trans folks on #bluesky and others who are being suspended on that corporate platform for "wishing ill will" on J.K. Rowling.
Rowling is an objectively terrible human being that has repeatedly expressed discriminatory and disgusting opinions towards trans people.
She has earned every ounce of ill will that she gets.
saw this from @…