Steven Pigeon
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stevenpigeon.bsky.social
Steven Pigeon
@stevenpigeon.bsky.social
49 followers 76 following 80 posts
He/him. Ph. D in computer science, professor at UQAR. Data structures, data compression, algorithms, mathematics. Personnal account, opinions are my own.
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Reposted by Steven Pigeon
apod.shinyakato.dev
🔭 Comet Lemmon and the Milky Way

Image Credit & Copyright: Lin Zixuan linzx23 at mails.tsinghua.edu dot cn) (Tsinghua U.)

apod.nasa.gov/apod/ap25112...
A night skyscape is shown over snowcapped mountains. On the left is the band of the Milky Way Galaxy, while on the right is a bright comet with two tails -- a white tail going up and trailing to the right and a longer blue tail going up and trailing off to the left. Please see the explanation for more detailed information.
November 25, 2025 at 8:00 AM
Reposted by Steven Pigeon
nadwgab.bsky.social
I'm just over 90% of the way through #365Minerals! The end is in sight! #minerals 🧪⚒️
nadwgab.bsky.social Nadine, Hunter of Rocks 💎 @nadwgab.bsky.social · 13h
331 of #365Minerals 🧪⚒️

Andalusite:
- An aluminosilicate mineral
- A polymorph of kyanite and sillimanite
- A common low grade metamorphic mineral
- Used in the production of high temperature ceramics
- Named after Andalusia in Spain #minerals
Twin crystals of andalusite (variety chiastolite) in a grey mica schist. The crystals are beige and look like flowers with four petals. A cut and polished slice. From Bimbowrie, South Australia. Specimen on display in the Natural History Museum, London.
November 27, 2025 at 10:18 PM
Reposted by Steven Pigeon
patricianicoloso.bsky.social
Sabiá-barranco/Pale-breasted Thrush
Turdus leucomelas
#animal #animais #animals #fotografias #photo #photograph #fotos #photos #birdwatching #birding #santamaria #santamariars #riograndedosul #bird #birds #Ave #aves #asavesqueeuencontro #patricianicoloso
November 27, 2025 at 10:47 PM
Reposted by Steven Pigeon
patricianicoloso.bsky.social
Sabiá-laranjeira/Rufous-bellied Thrush
Turdus rufiventris
#animal #animais #animals #fotografias #photo #photograph #fotos #photos #birdwatching #birding #santamaria #santamariars #riograndedosul #bird #birds #Ave #aves #asavesqueeuencontro #patricianicoloso
November 27, 2025 at 12:25 AM
Reposted by Steven Pigeon
mikemelton.bsky.social
#ToucanButtoftheDay

Something away from Bijagua (finally!), a Fiery-billed Aracari (Pteroglossus frantzii) at San Vito, Puntarenas #CostaRica

#toucans #birds #nature
Colorful toucan perched on a branch, showing its bright orange-red bill, dark body, and red tushy against a soft green forest background.
November 27, 2025 at 2:35 AM
Reposted by Steven Pigeon
mikemelton.bsky.social
One of the fun southern #CostaRica specialties, the Speckled Tanager. In San Vito, Puntarenas.

#birds #green #nature
Small green and yellow songbird with heavily speckled black-and-white chest, perched on a leafy branch against a soft green background.
November 27, 2025 at 3:00 AM
Reposted by Steven Pigeon
arthistoryanimalia.bsky.social
Oscar Jespers (Belgium, 1887-1970)
Lapin ( #Rabbit ), 1918
White stone, 75 x 35 x 23 cm
NF Art Gallery www.nf-art.be/lapin/
#Sculpture
official gallery photo of the rabbit sculpture in quarter turn side profile on gradient grey-blue to black background material labeled “white stone” but color is a pale green small statue of a rabbit (hare?) standing up on bent hind legs with front legs down against chest and very long ears, one straight up and one bent down nearly 90 degrees
November 27, 2025 at 5:09 AM
Reposted by Steven Pigeon
mariannedenton.bsky.social
A View from the Driver’s Seat at 73 mph: Pilot Mountains, Mineral County, Nevada

All along last week’s 24 hour, 500 mile round trip client visit to Silver Peak, NV.
A snow covered desert mountain range with clouds obscuring part of the mountains. The sky is mostly cloudy with some blue. There is a barren, blurred foreground.
November 26, 2025 at 3:44 PM
Reposted by Steven Pigeon
paulmwall.bsky.social
On the edge of the Atlantic #birdoftheday #birds
Sanderling at golden hour, standing amidst surf bubbles, facing right. The bird is standing as tall and proud as I’ve ever seen a sanderling stand (nice tongue twister huh). Her head is high and her legs are stretched. She is in winter plumage: white below, white neck, white nape, with wings and crown flecked in black. She has a faint broad smudgy eye line and black legs. The sand is steel blue in the sunset and the surf bubbles are white with a brown-yellow tint.
November 26, 2025 at 1:24 PM
Reposted by Steven Pigeon
arthistoryanimalia.bsky.social
#TurtleTuesday 🐢:
Divine #Turtle of Longevity (Minogame)
Japan, 19th c.
Copper alloy
On display at The Walters Art Museum (54.1355)
#JapaneseArt #AuspiciousAnimals
photo of the minogame sculpture with label on display at museum “Divine Turtle of Longevity (Minogame) Japan, 19th century Copper alloy Acquired by William T. or Henry Walters, before 1931, acc. no. 54.1355”
November 26, 2025 at 8:19 AM
Reposted by Steven Pigeon
nadwgab.bsky.social
329 of #365Minerals 🧪⚒️

Anorthite:
- A calcium-rich plagioclase feldspar
- Forms in mafic igneous rocks
- Found on the Moon and and in comets such as Comet 81P/Wild
- Its name comes from the Greek words "αν oρθός/an orthós" (not a right angle) because its crystals have an oblique form #minerals
November 25, 2025 at 10:26 AM
Reposted by Steven Pigeon
moorejh.bsky.social
Installed an internal BlueSCSI hard drive in my Mac LCIII tonight. I bought the BS at VCF-MW in Sep from @museumjoe.bsky.social. Decided to play a little Sim City #mac #macintosh #retrocomputing Thanks @bluescsi.com!
November 26, 2025 at 3:00 AM
Reposted by Steven Pigeon
vgel.me
new, short blog post: vgel.me/posts/elven-...
November 26, 2025 at 12:49 AM
Reposted by Steven Pigeon
patricianicoloso.bsky.social
Quero-quero/Southern Lapwing
Vanellus chilensis
#animal #animais #animals #fotografias #photo #birdwatching #floripa #birding #fotos #Florianopolis #SantaCatarina #photography #bird #birds #Ave #aves #asavesqueeuencontro #patricianicoloso
November 25, 2025 at 9:40 PM
Reposted by Steven Pigeon
thisnorthernboy.bsky.social
Six Ships. I'm very much in the Chris Foss school of thought when it comes to colour, rather than SW or ST.

#Spaceships #SciFi #Illustration
Digital illustration on a white background. Six brightly coloured spaceships. Adorned with stripes and patterns. More like race cars than spaceships.
November 25, 2025 at 3:14 PM
Reposted by Steven Pigeon
kekeflipnote.bsky.social
The truth 🐊
November 26, 2025 at 12:45 AM
Reposted by Steven Pigeon
moorejh.bsky.social
control panel of the day #HCI
November 25, 2025 at 10:54 PM
Reposted by Steven Pigeon
bisonrimant.fr
I have been commissioned 🔥 Henry-Barnabé de la Veulerie and their friends are coming back.

I'll start tomorrow, and post the work in progress below.
bisonrimant.fr Bison @bisonrimant.fr · 6d
I want to make a third Ancient Wisdom. Someone commission me please.
Woodcarved scene on a round base. An humanoid octopus wearing a dress is holding a basket with a duck inside of it. On the head of the octopus, a grumpy frog taking shelter of a big ancient book. Next to them all, a sword is coming out of water among bulrush. On the top of it sits a kingfisher. Glass bell with a woodcarved scene of a humanoid octopus wearing a dress on the surface of a pond. The creature has a kingfisher on its head. It's holding a book wich has a duck sitting on it. On the left of the base looking like water, bulrushes. On the right, a little frog has its head out of water. In the background, indoor plants by a window.
November 25, 2025 at 9:06 PM
stevenpigeon.bsky.social
Plusieurs formes de l'espace de couleur HSV (le pudding à l'arsenic, le cône hexagonal, le cone) et la projection pour les construire (un cube RGB avec la grande diagonale noir-blanc à la verticale, un point à l'intérieur du cube projeté sur son ombre hexagonale)
November 25, 2025 at 7:57 PM
Reposted by Steven Pigeon
secondnaturemb.bsky.social
Took a detour on my way home from the city today to look for snowy owls and lucked into one just before sunset. They're such beautiful birds. #birds 🌿
a large white snowy owl with yellow eyes and black speckles opens its wings to take off from the top of a large spruce tree on a clear evening. a large white snowy owl with yellow eyes and black speckles takes it first down stroke while taking off from the top of a large spruce tree on a clear evening. a large white snowy owl with yellow eyes and black speckles speads its wings in flight on a clear evening. a large white snowy owl with yellow eyes and black speckles spreads its wings to the fullest in flight on a clear evening.
November 25, 2025 at 1:59 AM
Reposted by Steven Pigeon
gettoknownature.bsky.social
HOLY CRAP, what a glorious, powerful bird!!

(Red-tailed Hawk coming in for a landing) #birds 🌿
A large brown hawk is about to land on the very top of an evergreen tree. Its wings are up, tail spread out and feet out about to grab the top branch.
November 23, 2025 at 9:45 PM
Reposted by Steven Pigeon
patricianicoloso.bsky.social
Sanhaçu-cinzento/Sayaca Tanager
Thraupis sayaca
#animal #animais #animals #photo #birdwatching #photograph #photos #foto #birding #santamaria #santamariars #riograndedosul #bird #birds #Ave #aves #asavesqueeuencontro #patricianicoloso
November 23, 2025 at 9:18 PM
Reposted by Steven Pigeon
weirdmedieval.bsky.social
they had goth baddies in the 17th century as evidenced by the fact that a woman named Caterine Morte had a skull coat of arms
a book page with a coat of arms showing a skull, next to it is written Caterine Morte
November 23, 2025 at 8:54 PM
Reposted by Steven Pigeon
mikemelton.bsky.social
One of Barry's descendants surveying the area at @tapirvalley.bsky.social #CostaRica

Bare-throated Tiger-Heron

#birds #herons #nature
Tall heron standing alert in wet grass, showing flared, finely barred neck feathers, a streaked chest, and a long sharp bill with a bright yellow eye.
November 23, 2025 at 5:42 PM
Reposted by Steven Pigeon
wildlife.nathan.fun
Edinburgh journal of natural history and of the physical sciences. Edinburgh [etc.]: Published for the proprietor [etc.], 1835-1840. (source: https://biodiversitylibrary.org/page/33665607) #nature #illustration #art
Edinburgh journal of natural history and of the physical sciences. Edinburgh [etc.]: Published for the proprietor [etc.], 1835-1840. https://biodiversitylibrary.org/page/33665607�
November 21, 2025 at 3:05 PM