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@hikingdude@mastodon.social
2025-11-08 15:47:07

Plan C turned out to be a nice day in the mountains. But Woah was there a chill wind. Good that I was prepared.
#hiking #wandern #mountains

Two curious cows stand side by side on a gentle, grassy slope, their coats a mix of rich brown and white patches. Their eyes are bright and inquisitive, reflecting a sense of calm and gentle curiosity as they face the camera. The cows, adorned with yellow ear tags, seem at ease in their natural surroundings, their breath visible in the cool, crisp air. The landscape around them is a blend of open pasture and rolling hills, dotted with a few scattered trees and framed by a dense forest in the b…
A breathtaking panoramic view unfolds under a vast, clear blue sky, where rolling hills and dense forests stretch out toward the horizon. The foreground is a gentle, sunlit slope covered in golden grass, leading the eye toward clusters of evergreen trees that dot the landscape. Their deep green needles contrast beautifully with the warm tones of the grass and the vibrant blue of the sky. In the distance, layer upon layer of forested hills and mountains rise, their peaks softened by a delicate …
@GroupNebula563@mastodon.social
2025-10-11 08:23:47

be there or be pudding
#Seattle @…

a poster, headed “come eat pudding with a fork!” next to it is a picture of a small cup of pudding and a fork below that is the text “bring: pudding, fork, german vibes. when? sat, oct 11 3pm. where? cal anderson water thing grass area” and a QR code labeled “partiful”. below the text are two images: one of a silly cat smiling and looking into the camera, and one of a big grass area with a red arrow pointing at it.
@groupnebula563@mastodon.social
2025-10-11 08:23:47

be there or be pudding
#Seattle @…

a poster, headed “come eat pudding with a fork!” next to it is a picture of a small cup of pudding and a fork below that is the text “bring: pudding, fork, german vibes. when? sat, oct 11 3pm. where? cal anderson water thing grass area” and a QR code labeled “partiful”. below the text are two images: one of a silly cat smiling and looking into the camera, and one of a big grass area with a red arrow pointing at it.
@arXiv_astrophIM_bot@mastoxiv.page
2025-10-10 09:09:39

Photometric Redshift Estimation for Rubin Observatory Data Preview 1 with Redshift Assessment Infrastructure Layers (RAIL)
T. Zhang, E. Charles, J. F. Crenshaw, S. J. Schmidt, P. Adari, J. Gschwend, S. Mau, B. Andrews, E. Aubourg, Y. Bains, K. Bechtol, A. Boucaud, D. Boutigny, P. Burchat, J. Chevalier, J. Chiang, H. -F. Chiang, D. Clowe, J. Cohen-Tanugi, C. Combet, A. Connolly, S. Dagoret-Campagne, P. N. Daly, F. Daruich, G. Daubard, J. De Vicente, H. Drass, K. Fanning, E. Gawiser, M. …

Photometric Redshift Estimation for Rubin Observatory Data Preview 1 with Redshift Assessment Infrastructure Layers (RAIL)
We present the first systematic analysis of photometric redshifts (photo-z) estimated from the Rubin Observatory Data Preview 1 (DP1) data taken with the Legacy Survey of Space and Time (LSST) Commissioning Camera. Employing the Redshift Assessment Infrastructure Layers (RAIL) framework, we apply eight photo-z algorithms to the DP1 photometry, using deep ugrizy coverage in the Extended Chandra Deep Field South (ECDFS) field and griz data in the Rubin_SV_38_7 field. In the ECDFS field, we constr…

@arXiv_grqc_bot@mastoxiv.page
2025-09-09 09:05:22

Probing Horndeski Gravity via Kerr Black Hole: Insights from Thin Accretion Disks and Shadows with EHT Observations
Xiao-Xiong Zeng, Chen-Yu Yang, M. Israr Aslam, Rabia Saleem
arxiv.org/abs/2509.05803

Probing Horndeski Gravity via Kerr Black Hole: Insights from Thin Accretion Disks and Shadows with EHT Observations
In this study, we have considered the Kerr-like black hole (BH) model in Horndeski gravity and analyse the visual characteristics of shadow images under two illumination models, such as a celestial light source and a thin accretion disk. To capture the BH shadow images, we utilise a recent fisheye camera model and ray-tracing procedures. In this view, we carefully addressed the influence of the spin parameter $a$ and the hair parameter $h$ on the BH shadow images. The results indicate that for …

@simon_brooke@mastodon.scot
2025-08-26 17:22:59

Today has been mainly about stripping down my favourite mountain bike for repainting and renovation.
#BikeTooter

My 2004 Cannondale Jekyll, a lightweight black full suspension mountain bike with a 'lefty' single sided front fork, leaning against a fence in a green field.
The same bike, hanging from my workstand, with its rear wheel, rear triangle, and handlebars removed. The workstand stands in a concreted roadway, with the rusty railings of the old communal cattle management yard behind.
Transporting what's left of the bike down to the bike workshop in the village, on another bike -- the big black cargo bike -- of course. The cargo bike faces the camera, standing on the concrete roadway. The frame and front wheel of the mountain bike lie across its box.
The frame of the mountain bike leans against a bench standing on green grass, while the front fork leg, now detached, lies on the bed and the front wheel, also detached, leans against the other side.
@arXiv_quantph_bot@mastoxiv.page
2025-10-08 10:34:29

Non-iid hypothesis testing: from classical to quantum
Giacomo De Palma, Marco Fanizza, Connor Mowry, Ryan O'Donnell
arxiv.org/abs/2510.06147

Non-iid hypothesis testing: from classical to quantum
We study hypothesis testing (aka state certification) in the non-identically distributed setting. A recent work (Garg et al. 2023) considered the classical case, in which one is given (independent) samples from $T$ unknown probability distributions $p_1, \dots, p_T$ on $[d] = \{1, 2, \dots, d\}$, and one wishes to accept/reject the hypothesis that their average $p_{\mathrm{avg}}$ equals a known hypothesis distribution $q$. Garg et al. showed that if one has just $c = 2$ samples from each $p_i$,…

@leftsidestory@mstdn.social
2025-10-03 00:30:00

Moody Urbanity - Beings 🔶
情绪化城市 - 灵 🔶
📷 Nikon FE
🎞️ Lucky SHD 400
#filmphotography #Photography #blackandwhite

Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo shows an older shirtless man riding a bicycle on a tree-lined sidewalk. A towel hangs over one shoulder. A trash bin stands nearby. In the background, more people ride bicycles or scooters. Parked cars line the street. A utility pole displays a Chinese sign promoting public cleanliness. The scene reflects a slice of daily life in a quiet urban neighborhood. 中文替代文字： 这张黑白照片中，一位年长男子赤膊骑车在绿树成荫的人行道上，肩上搭着毛巾。旁边放着一个垃圾桶。背景中还有其他人骑着自行车或电动…
Lucky Lucky SHD 400 (FF) English Alt Text: A tranquil black-and-white image of a park shows several people sitting on benches surrounded by trees, bushes, and tall grass. A lamp post stands near the center. On the right, a paved path bordered by a metal railing and trimmed hedges leads away. The people appear relaxed, reading or using devices. The scene evokes peace and quiet, ideal for reflection or rest. 中文替代文字： 这是一张宁静的黑白公园照片，几位市民坐在长椅上，周围环绕着树木、灌木和高草。中央有一根路灯杆。右侧是一条铺砖小道，边缘设有金属栏杆和修剪整齐的绿篱。人们看起来…
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white street scene shows a person standing on a ladder, reaching into a tree—possibly pruning or collecting something. The ladder is mounted on a cart attached to a bicycle or motorbike. The street is lined with large trees, and several bicycles and motorbikes are parked nearby. Buildings and a fence form the background. The candid moment reflects everyday urban labor and resourcefulness. 中文替代文字： 这张黑白街景照片中，一人站在梯子上，伸手进入树枝间，可能在修剪或采摘。梯子固定在一辆…
Lucky Lucky SHD 400 (FF) English Alt Text: A black-and-white photo captures a quiet urban street. On the right, a brick building hosts a small clothing shop with dresses and shirts hanging on the exterior wall. A red office chair with wheels sits casually on the sidewalk. A woman with long hair, wearing a patterned skirt and carrying a bag, walks away from the camera. The sidewalk is paved with bricks and includes a tactile strip for visually impaired pedestrians. The atmosphere blends traditi…
@chris@mstdn.chrisalemany.ca
2025-09-08 19:14:30

Short video of Didulo exiting the RCMP transport to go into her bail hearing. (She was granted bail but ordered to stay in Regina)
But I thought the most interesting thing was the very short exchange she had with someone, presumably an Indigenous person, off camera.
Off Camera Person (OFP): “Chief George Cody told you and your people to stay off Treaty 4 lands”
Didulo: “Colonial System!”
OFP: “When are you going to leave Treaty 4”
"Didulo: “Under Natural Law there is no colonial system”
OFP: “Sorry! Natural Law is Treaty Law!”
Indeed!
(I would be shocked if Didulo didn't skip town and probably try to cross the border in the middle of Montana or something… 'secure the royal puppies!’)
#Cult #Canada #RomanaDidulo #QueenofCanada #SovereignCitizen #CanPoli #CdnPoli

@UP8@mastodon.social
2025-09-04 02:42:51

Another view of a pond at Oakley Corners State Park south of Route 38B near Newark Valley, NY
#photo #photography #landscape

A body of water that looks kidney shaped from this angle with, at the bottom, tufts of a grass-like plant on the sore, and the chocolate-colored water with gentle ripples reflecting the sky, far above a tree spreading from above the camera, that extends to the left and is bounded by an island to the right and has trees on the far shore and a complex blue sky with white clouds in front.