iiinova — where your digital self keeps evolving

Andreas Freise

@gwoptics.bsky.social

302 followers 245 following 1.3K posts

Looking for gravitational waves, modelling light. Photos are taken by me unless stated otherwise (provided under a CC BY-NC-SA 4.0 license).

Posts Replies Media

Andreas Freise @gwoptics.bsky.social · 9h

At home. #photography #caturday

A photo of a cat with black, orange, and white fur lying on its back inside a packed suitcase with eyes closed and paws curled.

Andreas Freise @gwoptics.bsky.social · 09/10/2026

Searching. #photography #FensterFreitag

A photo showing a person standing alone, facing a large multi-pane window overlooking an empty airport runway.

Andreas Freise @gwoptics.bsky.social · 06/10/2026

Urban. #photography

A photo of a blurred nighttime scene of an urban environment with multiple lights from buildings and streetlights, creating washed out spots and streaks in orange, white, and blue.

Andreas Freise @gwoptics.bsky.social · 06/10/2026

Cloud storage. #photography

A wide-angle photo of a tall skyscraper with a metallic gray facade featuring a grid-like pattern and no windows. The top of the building is partially obscured by morning fog under an overcast sky.

Andreas Freise @gwoptics.bsky.social · 05/10/2026

End of the working day. #photography

A wide-angle photo of a tall building with many windows and a slightly tapered shape.
Around the base one can see many people walking and cycling. The sky is clear and blue, with low evening light streaming through the streets.

Reposted by Andreas Freise

Paula ⚪️ @paulaflucas.bsky.social · 05/10/2026

Bridget Riley + Rothko MashUp! #aofoto #AccidentalArtist #AccidentalArt

A steel corrugated side panel of a garage door with a long oblong panel of turquoise & blue paint centrally in full sunlight.

Andreas Freise @gwoptics.bsky.social · 05/10/2026

Mines on Monday morning. #photography

A photo showing three black spherical objects with red spikes protruding from their top and sides, partially obscured by a flat light gray metal surface and in front a plain light gray sky.

Andreas Freise @gwoptics.bsky.social · 04/10/2026

Collision course. #photography

A photo looking up into a clear blue sky with two black birds and further up an airplane leaving contrails. The lower part of the image shows a flat gray surface with a white edge.

Andreas Freise @gwoptics.bsky.social · 04/10/2026

Fall. #photography #SilentSunday

A photo showing three light green acorns on a branch, in front of darkee green leaves.

Reposted by Andreas Freise

aows @aows.co · 02/10/2026

Morning reflections, IV. Washington, September 2026 #aowsimages #blackandwhite #photography

Andreas Freise @gwoptics.bsky.social · 03/10/2026

Busy street corner. #FotoVorschlag 'Aufkleber' #photography

Photo showing several black-and-white stickers on a weathered lamp post. All stickers show cartoonish, abstract rabbits in human-like poses.

Reposted by Andreas Freise

Marc van Oostendorp @fonolog.bsky.social · 01/10/2026

De Nederlandse taal is gezegend geweest doordat we Paulien Cornelisse (1976-2026) in ons midden hebben gehad. neerlandistiek.nl/2026/10/paul...

neerlandistiek.nl

De Nederlandse taal is gezegend geweest doordat we Paulien Cornelisse (1976-2026) in ons midden hebben gehad.

Andreas Freise @gwoptics.bsky.social · 01/10/2026

Everyone else has gone. #photography #blackandwhite

A photo of an airport check-in hall with a reflective black tile floor and a geometric metal structure and small bright lights in the ceiling. The hall is mostly empty, looking deserted.

Andreas Freise @gwoptics.bsky.social · 01/10/2026

Or not, obviously. #photography

A photo looking on the sharp corner of a red brick wall. A white sign on the right shows the number "2B" in blue letters.

Andreas Freise @gwoptics.bsky.social · 30/09/2026

Summer is peeling off. #photography

A photo showing tilted walls of a large concrete structure with a few graffiti tags. On one side of the concrete a white paper with a black palm tree silhouette has been posted. The upper right corner is starting to peel off.

Andreas Freise @gwoptics.bsky.social · 30/09/2026

S is for Science. #photography

A close -up photo of an illuminated train station sign, showing a large white uppercase "S" on a dark blue background with a cracked, web-like pattern around it.

Andreas Freise @gwoptics.bsky.social · 29/09/2026

I am sure this can is very a special one. #photography

A photo showing a dark can standing in front of a bright orange gradient background created by a spotlight from above. The scenes is reflected in a shiny black reflective surface below the can.

Andreas Freise @gwoptics.bsky.social · 29/09/2026

Warm wood and a friendly grey. #photography #TextureTuesday

A photo with the top half showing a textured gray surface (fabric) and the bottom half a smooth, light brown wooden surface with horizontal grain (table).

Andreas Freise @gwoptics.bsky.social · 28/09/2026

Neighbours. #FotoVorschlag ‘Typisch für meinen Wohnort‘ #photography

A photo of a brick wall with white plaques displaying the numbers 85, 83, 81, 79. Below are two blue mailboxes and to the right is a door of the same colour under a curved brick arch.

Andreas Freise @gwoptics.bsky.social · 28/09/2026

Smile. #photography

A photo of a hotel room with a double bed with white pillows and sheets in front of a green wall with a large, pixelated smiley face made of yellow and black tiles.

Andreas Freise @gwoptics.bsky.social · 27/09/2026

People. #photography

A photo looking down on a large colourful crowd of people gathered outdoors at night.

Reposted by Andreas Freise

LIGO Scientific Collaboration @ligo.org · 25/09/2026

The latest issue of the @ligomagazine.bsky.social is now out with all the latest #GravitationalWaves news! Read it for free at ligo.org/wp-content/u... 🔭🧪⚛️🎶

LIGO Magazine Issue 29

A+ bigger beamsplitters: A major upgrade for LIGO's A+ phase, p 18
GWTC-5.0 - the catalogue continues: 161 events added to the collection, p 6
LIGO Virgo KAGRA teamwork: Gravitational-wave autotune, p 8
Sept. 2026 LVK Meeting in Pune: GW research in India, p 11
A decade on... LISA Pathfinder persists in discovery, p 28

Reposted by Andreas Freise

Prof Anna Watts @profannawatts.bsky.social · 25/09/2026

The Els Koffemann postdoctoral fellowship, offered by my colleagues at our Institute of Physics, is accepting applications. academicjobsonline.org/ajo/fellowsh...

academicjobsonline.org

University of Amsterdam, Institute of Physics, Diversity and Inclusion Council

Job #AJO32465, Els Koffeman Postdoctoral Fellowship in Physics at the University of Amsterdam, Institute of Physics, Diversity and Inclusion Council, University of Amsterdam, Amsterdam, Noord-Holland...

Reposted by Andreas Freise

Shawn @ftlshawn.bsky.social · 27/09/2026

Window With Vine, Rust And Flowers.

Andreas Freise @gwoptics.bsky.social · 27/09/2026

Striped. #photography #SilentSunday

A photo showing part of a pyjama leg with black, white, and orange vertical stripes. The background is a beige wall with white elements at the bottom and top, and vertically down near the left of the image.

Andreas Freise @gwoptics.bsky.social · 26/09/2026

Lamps, failing at their job. #FotoVorschlag 'Restlicht' #photography

A dark photo of two wall-mounted candle-style lights on a dark wooden wall. On can just about see golden frames on the wooden panels.

Andreas Freise @gwoptics.bsky.social · 26/09/2026

Queues. #photography

A photo of a row of trolleys lined up on a red carpeted floor in a bright, modern airport area with curved ceilings and large windows.

Andreas Freise @gwoptics.bsky.social · 25/09/2026

The airport lounge sessions. #photography #travel

Photo showing a red bench in a airport area. Sunlight streams in through large tilted windows on the right.

Andreas Freise @gwoptics.bsky.social · 25/09/2026

Evening in Toulouse. #photography #FensterFreitag

A nighttime photo of a stained glass window with red flowers and green leaves in the design, and with a small, wrought-iron balcony. The brick wall features decorative grooves and some patches with colour (or discoloring).

Andreas Freise @gwoptics.bsky.social · 24/09/2026

It's not sports day apparently. #photography

A photo looking against the daylight, through greenery, and across a small canal at seats next to an empty sports field. The red and black seats are in a transparent structure for wind and rain protection.

Reposted by Andreas Freise

National Institute for Subatomic Physics (Nikhef) @nikhef.bsky.social · 23/09/2026

Niet alleen Nikhef doet mee aan het Weekend van de Wetenschap, ook onze partneruniversiteiten hebben fantastische evenementen in petto, bekijk ze hier: www.nikhef.nl/evenement/we...

Andreas Freise @gwoptics.bsky.social · 23/09/2026

Late summer tourists. #photography #blackandwhite

A black and white photo showing two people with suitcases walking on a paved sidewalk in a city towards a low bright sun.

Andreas Freise @gwoptics.bsky.social · 23/09/2026

Rolling. #photography

A photo of a brilliant white surface with several colorful semi-transparent spheres. Sunlight from the top right is creating elongated colourful shadows behind the spheres. The surface also has circular black areas, probably holes.

Andreas Freise @gwoptics.bsky.social · 21/09/2026

Twenty two. #photography #RandomNumber

A photo of a light-colored rough-textured wall with horizontal moldings and a smooth door entrance, illuminated by late sunlight filtered through the canopy of nearby trees. The number 22 is painted in black on the smooth part of the wall.

Andreas Freise @gwoptics.bsky.social · 21/09/2026

Amsterdammers. #photography #Amsterdam

A photo of a heron perched on top of a white, cone-shaped street lamp, surrounded by tall trees.

Andreas Freise @gwoptics.bsky.social · 20/09/2026

Bean by bean. #photography #SilentSunday #coffee

Photo showing a few coffee beans scattered on a wooden surface. Light from the top creates dark shadows below the beans and brings out the texture of the wood.

Andreas Freise @gwoptics.bsky.social · 19/09/2026

One of the darker greys. #photography #caturday

A dark black and white photo looking down on an outside area with a concrete floor and a white wall. A dark, possibly back, cat is passing by.

Andreas Freise @gwoptics.bsky.social · 19/09/2026

Lost in the wood. #photography

A photo showing a restroom entrance with wooden vertical slats on the overlapping walls. LED strips illuminate the ceiling and floor edges.

Andreas Freise @gwoptics.bsky.social · 18/09/2026

A bit random. #photography

A photo looking up at a green ceiling and a group of eight ring-shaped, dark brown light fixtures arranged in an asymmetric pattern. Each light fixture has a white inner ring emitting a soft glow.

Reposted by Andreas Freise

Simon T. @sitobin.bsky.social · 18/09/2026

Walton Lighthouse. Santa Cruz.

Andreas Freise @gwoptics.bsky.social · 18/09/2026

Back at square one. #photography #FensterFreitag

A photo looking directly at a large, illuminated frosted window in a dark brick wall. A faint reflection of a person is visible. Below the wall one can see a brick pavement and a metal grate.

Andreas Freise @gwoptics.bsky.social · 17/09/2026

That's wet. #photography

A photo of small piece of railroad tracks. The tracks are wet. Water distorted by falling rain drops is standing in between the tracks.

Andreas Freise @gwoptics.bsky.social · 17/09/2026

Black and white (mostly). #photography

A photo of a black wooden wall with a white-framed window or door with black wooden shutters. Below the wall one can see a stone foundation.

Andreas Freise @gwoptics.bsky.social · 16/09/2026

Thank you!🙏

Andreas Freise @gwoptics.bsky.social · 16/09/2026

Across. #photography

A photo looking down on a paved stones with white stone lines forming a stretched cross over the main gray stones.

Andreas Freise @gwoptics.bsky.social · 16/09/2026

More experiments in white. (The shown art piece is Pregnant White Within Me by Anish Kapoor.) #FotoVorschlag 'Im Museum' #photography

A black-and-white photo of a piece of art in a museum. A large room with wooden floors and a mostly translucent roof features a large white wall with a wide 'pregnant' bulge. A person can be seen walking across from the right.

Andreas Freise @gwoptics.bsky.social · 15/09/2026

Modern design failure. #photography

A photo of a 'turn' in dimly lit staircase with two rectangular modern lamps, white walls and a window. The window is behind diirty looking sheer curtains.

Andreas Freise @gwoptics.bsky.social · 15/09/2026

Yes, exactly!

Andreas Freise @gwoptics.bsky.social · 15/09/2026

In the dark. #photography #TextureTuesday

A photo of a stone wall with crumbling plaster in a slightly gloomy outdoor underpass. In the lower right is a small piece graffiti of a stickman releasing a red heart like a small balloon.

Andreas Freise @gwoptics.bsky.social · 14/09/2026

A bit grey. #photography #ToInfinity

A black and white photo looking along a tree-lined pathway in a park. The tall trees form an almost completely closed canopy overhead.