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Stephen Cass

@stephencass.bsky.social
2.8K followers 2.2K following 1.1K posts

Special Projects Director at @spectrum.ieee.org. Co-author of Hollyweird Science Vol. 1 and 2. Occasional science fiction editor. Maker and Retrocomputician. Feral cat servitor. 5e DM. ADHD. KB1WNR. 65xx. Originally from Dublin.

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Stephen Cass @stephencass.bsky.social · 17/08/2026
Another great HOPE conference this weekend by the @2600.com folks, with a lot of grist for the mill. But mainly I'm happy to get these Toilets on the Air ham radio certificates, (even if there were few actual toilets) :) Next year my goal is to have a proper rig for SSTV transmissions! #AmateurRadio
Three "Tota @ Hope 26" certificates for "Straight Flush (worked 5 sequential references)", "Inside the Bowl (T2T QSO)", and "Activated All Toilets"
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Stephen Cass @stephencass.bsky.social · 31/07/2026
But how am I supposed to document my grant request to excavate the previously undiscovered neolithic henge complex in Brooklyn's Prospect Park?
A satellite image of prospect featuring a large circular tell and henge structure.
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Stephen Cass @stephencass.bsky.social · 27/07/2026
100% Brazil-style…
A large fresnel lens magnifying the image a book
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Stephen Cass @stephencass.bsky.social · 27/07/2026
Finally got my own copy of the TI logic datasheet book: so much fun to leaf through, and when the apocalypse comes I won’t have to stop making projects! Ah, time enough at last…
The front cover of the 1998 edition of the TTL logic data book from TIA two-page spread from a data sheet book showing logic gates and a timing diagram for an integrated circuit.
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Stephen Cass @stephencass.bsky.social · 09/07/2026
Pretty much all of Edwards Hopper...
Morning Sun by Edward Hopper. A woman sits alone with her legs partially drawn up towards her chest on a plain bed, looking toward a window. Sunlight streams through the window and outside the tops of a row of brownstone buildings can be seen under a blue sky.
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Stephen Cass @stephencass.bsky.social · 09/07/2026
Democracy is all well and good, but anyone who stands up for Ceefax is on the side of the angels.
A teletext page displaying some items from Count Binface's 2024 manifesto
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Stephen Cass @stephencass.bsky.social · 17/05/2026
if u see this post your getaway vehicle
A balding man with a red beard sits in a low-slung three-wheeled bicycle-like Sinclair C5
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Stephen Cass @stephencass.bsky.social · 01/05/2026
Post your warning sign. If you see this in the wild, it's quite likely the last warning sign you will ever see...
The ISO 21482 warning symbol featuring a red triangle with a thick black border. At the top of the triangle five wavy arrows emanate from a radiation trefoil towards the base. Along the base at the left is a skull and crossbones. On the right is a running figure with a thick arrow pointing to the right, away from the skull and bones.
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Stephen Cass @stephencass.bsky.social · 13/04/2026
I'll see your 130 and raise you to 150 :) This particular one actually belonged to a former executive director of the IEEE, proving your point about the value of these kits!
A battered cardboard box with "Science Fair 150 in 1 Electronic Project Kit" written on it.
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Stephen Cass @stephencass.bsky.social · 07/01/2026
An Apple II microcomputer, with a keyboard integrated into a large beige case.
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Stephen Cass @stephencass.bsky.social · 29/10/2025
Rescuing 1 image a day from the depths of my Photo Library #251 "Backrooms"
A black and white photograph of a deserted office space with a corridor lit by daylight coming in from offices on one side while dark doorways lead off to spaces on the other side.
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Stephen Cass @stephencass.bsky.social · 20/10/2025
Rescuing 1 image a day from the depths of my Photo Library #250 "124"
A photograph taken at night of a red door recessed into the stone wall of a building. A single light illuminates the door as cast shadows of the open iron gate and fence in front of the door onto the sidewalk.
010
Stephen Cass @stephencass.bsky.social · 17/10/2025
Rescuing 1 image a day from the depths of my Photo Library #249 "Grin"
A black and white photograph of a concrete structure in sunlight. A squat cylinder with a set of of horizontal bars covering half its circumference sits atop a curving, neck-like, support.
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Stephen Cass @stephencass.bsky.social · 16/10/2025
Rescuing 1 image a day from the depths of my Photo Library #248 "Suspension"
A black and white solarized image of a huge arched suspension bridge tower, taken along the axis of the bridge. A grid of steel cablework radiates from the tower, reflecting sunlight, and an American flag waves atop it.
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Stephen Cass @stephencass.bsky.social · 15/10/2025
Rescuing 1 image a day from the depths of my Photo Library #247 "Patience"
 A black and white photograph taken at night of the head of a stone lion with a voluminous mane. Tree branches and the columns of a neo-classical building can be seen in the background.
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Stephen Cass @stephencass.bsky.social · 13/10/2025
Rescuing 1 image a day from the depths of my Photo Library #246 "Collanade"
A black and white photograph of the trunks of five tall trees standing at the base of a rock-strewn slope rising into the background with shrubs and other trees.
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Stephen Cass @stephencass.bsky.social · 12/10/2025
Rescuing 1 image a day from the depths of my Photo Library #245 "Dissolve"
A black and white photograph of a derelict factory with a single smoke stack sitting by the edge of a canal under bright sunlight on a deserted piece of ground.
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Stephen Cass @stephencass.bsky.social · 11/10/2025
Rescuing 1 image a day from the depths of my Photo Library #244 "Whispers"
A black and white photograph of a long barrel-vaulted room with large windows with panes criss-crossed with metal bars. Shelves of books line the opposite wall, and the room is filled with neatly arranged long tables and chairs, with pairs of reading lights placed on each table.
010
Stephen Cass @stephencass.bsky.social · 10/10/2025
Rescuing 1 image a day from the depths of my Photo Library #243 "Overhead"
A black and white phtotograph of an empty street lined by walls underneath an elevated train line. Pools and gridded rectangles of bright sunlight stand out from the shadows.
010
Stephen Cass @stephencass.bsky.social · 04/10/2025
Rescuing 1 image a day from the depths of my Photo Library #242 "Fully Computerized"
A black and white photograph of a shuttered store on a city street corner. Signs above the shutters read "Captain Video" and "Fully Computerized."
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Stephen Cass @stephencass.bsky.social · 04/10/2025
What's your sign
A triangle with a black border and red background. Inside the border are black symbols with white outlines. A trefoil on the top, representing and warning of radiation. Five lines emanate in an arc towards the bottom of the triangle. On the bottom left, there is a skull and crossbones, signifying death. On the bottom right, there is a running figure, with an arrow pointing right, away from the skull and crossbones.
010
Stephen Cass @stephencass.bsky.social · 04/10/2025
Rescuing 1 image a day from the depths of my Photo Library #241 "Carved"
A black and white photograph of a leafless tree with a broad trunk and thick spreading branches. Many initials have been carved into the trunk, running up the height of the frame.
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Stephen Cass @stephencass.bsky.social · 03/10/2025
Rescuing 1 image a day from the depths of my Photo Library #240 "Breezy"
A black and white photograph looking down a building arcade formed from rectangular concrete panels in a brutalist style.
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Stephen Cass @stephencass.bsky.social · 02/10/2025
Rescuing 1 image a day from the depths of my Photo Library #239 "Bermuda Vertex"
A photograph near sunset, with the light tinting everything yellow. A small tower with a windsock stands on a promontory jutting out into a wide body of water. In the distance a line of trees runs along the horizon, and a stone wall can be seen with a small archway on the water.
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Stephen Cass @stephencass.bsky.social · 30/09/2025
Rescuing 1 image a day from the depths of my Photo Library #238 "Attack"
A photograph of a tall building made with corrugated iron walls against a blue sky. Shrubs and small trees are encroaching on the building, obscuring its walls and even appearing in a wide rectangular window.
020
Stephen Cass @stephencass.bsky.social · 29/09/2025
Rescuing 1 image a day from the depths of my Photo Library #237 "Aggregate"
A black and white photograph of the top of round tower with irregular stones mortared together occupying the lower left two-thirds of the frame. Half of the tower is in bright sunshine, while the other half is deep shadow against a cloudless sky shading from grey near the bottom of the frame to black at the top.
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Stephen Cass @stephencass.bsky.social · 28/09/2025
Rescuing 1 image a day from the depths of my Photo Library #236 "Table Setting"
A photograph of a concrete table in a clearing of a wooded area. Brown leaves carpet the ground and verdant green moss blankets half the table.
000
Stephen Cass @stephencass.bsky.social · 21/09/2025
Rescuing 1 image a day from the depths of my Photo Library #235 "GW"
A black and white photograph of the underside of a very tall, very long metal truss suspension bridge, taken in bright sunlight, looking through an archway in the open framework of a supporting tower.
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Stephen Cass @stephencass.bsky.social · 19/09/2025
Rescuing 1 image a day from the depths of my Photo Library #234 "Flotsam"
A black and white photograph of water tumbling down a stony weir, the falling water looking like smoothed sheets. At the bottom, a lone log, propped up against one of weir's levels, disrupts the flow.
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Stephen Cass @stephencass.bsky.social · 18/09/2025
Rescuing 1 image a day from the depths of my Photo Library #233 "2-branes"
A black and white photograph of a corrugated, white-painted, metal fence meets a concrete sidewalk in the middle of the frame, casting a small shadow onto the light-colored sidewalk, which is divided up into a grid of rectangles.
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Stephen Cass @stephencass.bsky.social · 16/09/2025
Rescuing 1 image a day from the depths of my Photo Library #232 "Negotiation"
A photograph of a calico kitten standing on the snow-covered ground with her front paws resting on the first step of some stairs looking up toward the camera expectantly.
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Stephen Cass @stephencass.bsky.social · 14/09/2025
Rescuing 1 image a day from the depths of my Photo Library #231 "Jerron"
A black and white photograph of a man wearing a sleeveless tunic, a necklace made of safety pins, and a scrap of fabric tied around one wrist. He is holding a pose with his right arm outstretched to his side, while his head is tilted and his left hand is held close to his chest. He is standing in a conservatory, surrounded by a mostly seated ring of people with thoughtful expressions watching him closely.
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Stephen Cass @stephencass.bsky.social · 14/09/2025
Rescuing 1 image a day from the depths of my Photo Library #230 "Intrusion"
A black and white panorama of a ridge overlooking a wide river under a sky with many white clouds. The bottom of the ridge is covered in trees, but the top half features sharp cliff made of columns of dark rock.
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Stephen Cass @stephencass.bsky.social · 13/09/2025
Rescuing 1 image a day from the depths of my Photo Library #229 "Patrol"
A black and white photograph of three crows in flight away from one wall of a square stone tower into a sunny sky.
010
Stephen Cass @stephencass.bsky.social · 12/09/2025
Rescuing 1 image a day from the depths of my Photo Library #228 "Eleven"
A black and white photograph of a skyline of skyscrapers at night, seen behind some roofs and branches. The buildings take up the lower fifth of the frame, while two narrow twin beams of light shoot straight up into the sky over the rest of the frame.
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Stephen Cass @stephencass.bsky.social · 10/09/2025
Rescuing 1 image a day from the depths of my Photo Library #227 "Sandycove"
A black and white photograph of seaweed-covered rocks and boulders at low tide.
010
Stephen Cass @stephencass.bsky.social · 09/09/2025
Rescuing 1 image a day from the depths of my Photo Library #226 "Address"
A black and white photograph of a pole topped by loud hailers against a solid grey-white sky.
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Stephen Cass @stephencass.bsky.social · 06/09/2025
Rescuing 1 image a day from the depths of my Photo Library #225 "Supervision"
A black and white photograph of a small one-story brick building with two square windows on opposite sides of a black door with the word "Police" written on it. Against a cloudless sky, a seagull perches at the apex of the building's tiled roof.
020
Stephen Cass @stephencass.bsky.social · 03/09/2025
Rescuing 1 image a day from the depths of my Photo Library #224 "Forest"
A black and white photograph of several different skyscrapers at night that border and overlay each other. They fill the frame so that no gaps can be seen and neither the tops and bottoms of the buildings can be seen, just many windows of different sizes depending on the distance from the viewer, many of the illuminated from within.
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Stephen Cass @stephencass.bsky.social · 02/09/2025
Rescuing 1 image a day from the depths of my Photo Library #223 "Tensed"
a black and white photograph of the massive prism-shaped concrete pier of a suspension bridge. The truss of a double deck pass through the top of the prism, while the steel suspension cables pass into it.
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Stephen Cass @stephencass.bsky.social · 31/08/2025
Rescuing 1 image a day from the depths of my Photo Library #222 "Spire"
A black and white photograph taken straight against a large brushed metal column with smoothed polished cloud-like shapes on its surface. The sky is blue with some flossy clouds.
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Stephen Cass @stephencass.bsky.social · 28/08/2025
Rescuing 1 image a day from the depths of my Photo Library #221 "Ripple"
A photograph of a pond with a carpet of lilies covering most of the frame, with shadows from bordering trees near the top. A large triangle of open water occupies the lower right corner of the frame, and the sun is reflecting off ripples.
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Stephen Cass @stephencass.bsky.social · 27/08/2025
Rescuing 1 image a day from the depths of my Photo Library #220 "Snow Day"
A black and white photograph of cityscape with high-rise buildings atr night. Two towers, taller than the others, are under construction with floors completed but not the walls. Lights strung along each story's ceilings shine out through a light haze across the entire scene.
020
Stephen Cass @stephencass.bsky.social · 27/08/2025
Rescuing 1 image a day from the depths of my Photo Library #219 "Infiltration"
A black and white aerial photograph with a plateau with square parcels of crops in the bottom half of the frame. The top half is a rocky wide valley stretching into the distance. At the transition between the plateau and the lower valley a river network has cut dup scarps in a dendritic pattern into the the plateau.
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Stephen Cass @stephencass.bsky.social · 26/08/2025
TI 99-4/A: A rare machine in Ireland. The only games available were a handful of BASIC games that came on a demo tape, and I didn’t meet a single other person who owned one till I came to VCF events in the U.S.! So I was forced to learn how to program in order to do an anything with it.
A home computer with a brushed metal case and keyboard
020
Stephen Cass @stephencass.bsky.social · 26/08/2025
Rescuing 1 image a day from the depths of my Photo Library #218 "West"
A black and white photograph of a brick wall receding from the viewer and filling the left vertical two thirds of the frame. In the bottom of the vertical right third of the frame are the canopies of trees and beyond them sykscrapers can be seen against the skyline.
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Stephen Cass @stephencass.bsky.social · 24/08/2025
Rescuing 1 image a day from the depths of my Photo Library #217 "Renno"
A black and white photograph of an empty dark room with a window bay with two narrow windows. Light from the windows is reflected by a polished wooden floor, highlighting the grain of the wood.
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Stephen Cass @stephencass.bsky.social · 23/08/2025
Rescuing 1 image a day from the depths of my Photo Library #216 "Wishes"
A black and white close up photograph of a thistle plant budding floating seeds.
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Stephen Cass @stephencass.bsky.social · 20/08/2025
Such an awesome book indeed! And because he had some pages left over, some random telescopic images, like this beautiful sketch of a lunar crater!
A yellowed engraving of a hand-drawn sketch of a lunar crater, including several smaller craters surrounding it.
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Stephen Cass @stephencass.bsky.social · 20/08/2025
Rescuing 1 image a day from the depths of my Photo Library #215 "Red light/Green light"
A black and white photograph of an aerial view of a city intersection at night, surrounded by tall buildings. Traffic moving in one direction is blurred, headlights making streaks against the dark pavement.
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