Wojciech (Vôitek) Aniszewski
@aniszewski.bsky.social
Scientist, CFD, numerical methods, fluid mechanics, multi-phase flows, data visualization, ancient computers... also a homegrown carpenter.
Is that a Petri Dish? No, it's viscous liquid in an (unnecessarily violent) rotational flow inside a solid cylinder. Color is vorticity. Simulation in Basilisk (www.basilisk.fr and bview).
October 28, 2025 at 1:25 PM
Is that a Petri Dish? No, it's viscous liquid in an (unnecessarily violent) rotational flow inside a solid cylinder. Color is vorticity. Simulation in Basilisk (www.basilisk.fr and bview).
BTW, fixed a car radio. Off the bat I hear some rattling in it, and inside I discover ...4 euro coins (see? fixing stuff *does* pay off!), turns out prev owner's kids used the CD slit "as a vending machine"... A coin stuck in the CD changer's magnet, others were randomly shorting the circuit. Nice.
October 27, 2025 at 10:21 PM
BTW, fixed a car radio. Off the bat I hear some rattling in it, and inside I discover ...4 euro coins (see? fixing stuff *does* pay off!), turns out prev owner's kids used the CD slit "as a vending machine"... A coin stuck in the CD changer's magnet, others were randomly shorting the circuit. Nice.
Note to self: using LLMs (colloquially known as "AI") as ChatGPT for creative tasks such as writing *does*, after all, decrease your brain activity (colloquially "make you stupid"). Take it from the MIT: www.media.mit.edu/publications... (The link has both an arXiv paper and YT vid.)
Your Brain on ChatGPT: Accumulation of Cognitive Debt when Using an AI Assistant for Essay Writing Task – MIT Media Lab
This study explores the neural and behavioral consequences of LLM-assisted essay writing. Participants were divided into three groups: LLM, Search Engine, and …
www.media.mit.edu
October 9, 2025 at 1:34 PM
Note to self: using LLMs (colloquially known as "AI") as ChatGPT for creative tasks such as writing *does*, after all, decrease your brain activity (colloquially "make you stupid"). Take it from the MIT: www.media.mit.edu/publications... (The link has both an arXiv paper and YT vid.)
Made this cabinet, on and off over the last 7 mo. As usual, *all* wood is palette/garbage/dumpster_finds. So its cost was 0 (but the man-hours would take you back some 4k€ easily). Some tech infos in the image alt-texts. Had tons of fun - and that's why it was made. #DIY #woodworking
September 28, 2025 at 8:27 PM
Made this cabinet, on and off over the last 7 mo. As usual, *all* wood is palette/garbage/dumpster_finds. So its cost was 0 (but the man-hours would take you back some 4k€ easily). Some tech infos in the image alt-texts. Had tons of fun - and that's why it was made. #DIY #woodworking
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fetchmail: reading message ***@imap.***.upmc.fr:2 of 5 (3960 header octets) (35675 body octets) (log message incomplete)
f: MDA returned nonzero status 137
f: not flushed
f: Received BYE response from IMAP server: DISCONNECTED FOR INACTIVITY.
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That's a BAD server! I'm telling on you!
fetchmail: reading message ***@imap.***.upmc.fr:2 of 5 (3960 header octets) (35675 body octets) (log message incomplete)
f: MDA returned nonzero status 137
f: not flushed
f: Received BYE response from IMAP server: DISCONNECTED FOR INACTIVITY.
---
That's a BAD server! I'm telling on you!
September 10, 2025 at 7:56 PM
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fetchmail: reading message ***@imap.***.upmc.fr:2 of 5 (3960 header octets) (35675 body octets) (log message incomplete)
f: MDA returned nonzero status 137
f: not flushed
f: Received BYE response from IMAP server: DISCONNECTED FOR INACTIVITY.
---
That's a BAD server! I'm telling on you!
fetchmail: reading message ***@imap.***.upmc.fr:2 of 5 (3960 header octets) (35675 body octets) (log message incomplete)
f: MDA returned nonzero status 137
f: not flushed
f: Received BYE response from IMAP server: DISCONNECTED FOR INACTIVITY.
---
That's a BAD server! I'm telling on you!
Mainstream media takes stories like: dx.doi.org/10.1139/apnm-2023-0594, and runs FAR with them ("meat is good for you!"). Risky. A talented statistician can use NHANES data even to prove the existence of Atlantis. Oh, and the work is sponsored by National Cattlemen’s Beef Association. No kidding!
Animal and plant protein usual intakes are not adversely associated with all-cause, cardiovascular disease–, or cancer-related mortality risk: an NHANES III analysis
We used data from NHANES 1988–1994 to examine associations between animal and plant protein usual intakes and IGF-1 concentration with mortality from all causes, cancer, and cardiovascular disease (CV...
dx.doi.org
September 2, 2025 at 7:40 AM
Mainstream media takes stories like: dx.doi.org/10.1139/apnm-2023-0594, and runs FAR with them ("meat is good for you!"). Risky. A talented statistician can use NHANES data even to prove the existence of Atlantis. Oh, and the work is sponsored by National Cattlemen’s Beef Association. No kidding!
Witnessed a skirmish with an anti-nuclear activist about what the lack of river/sea water means for a plant (coal vs nuclear). He says: "obviously, the coal plants do NOT use water for anything, while the nuclear do". Humanity is lost
July 3, 2025 at 8:10 PM
Witnessed a skirmish with an anti-nuclear activist about what the lack of river/sea water means for a plant (coal vs nuclear). He says: "obviously, the coal plants do NOT use water for anything, while the nuclear do". Humanity is lost
The 1926 silent movie "The Johnstown Flood" showcased hundreds of early proofs of why fluid mechanics breaks your SFX. E.g. in this composite (~100y ago!) shot,we see a miniature flood,matchsticks pretending to be tree logs, people (rotoscoped in) and ...droplets with d=15cm. Good luck with that!
June 10, 2025 at 9:13 PM
The 1926 silent movie "The Johnstown Flood" showcased hundreds of early proofs of why fluid mechanics breaks your SFX. E.g. in this composite (~100y ago!) shot,we see a miniature flood,matchsticks pretending to be tree logs, people (rotoscoped in) and ...droplets with d=15cm. Good luck with that!
Some 9mo ago I made a desk cabinet (I twitted about it here: x.com/echo_dancers... ).
Now, I'm preparing it's left-hand-side brother, which due to a higher degree of complication, needs come prototyping in 3D...
Now, I'm preparing it's left-hand-side brother, which due to a higher degree of complication, needs come prototyping in 3D...
May 22, 2025 at 11:27 AM
Some 9mo ago I made a desk cabinet (I twitted about it here: x.com/echo_dancers... ).
Now, I'm preparing it's left-hand-side brother, which due to a higher degree of complication, needs come prototyping in 3D...
Now, I'm preparing it's left-hand-side brother, which due to a higher degree of complication, needs come prototyping in 3D...
Ever thought you're living in a historic era of the breakthrough of the electric car? Well, no. Check out this Detroit Electric (prob. model 47). They used plug-in charging (pictured), had >300km range (in tests) at ~32km/h. And more style than a 'Tessler'. en.wikipedia.org/wiki/Detroit...
May 11, 2025 at 7:09 PM
Ever thought you're living in a historic era of the breakthrough of the electric car? Well, no. Check out this Detroit Electric (prob. model 47). They used plug-in charging (pictured), had >300km range (in tests) at ~32km/h. And more style than a 'Tessler'. en.wikipedia.org/wiki/Detroit...
2018, 2035, 2050. What do these dates have in common?
Mars Oppositions
spider.seds.org
May 5, 2025 at 9:49 PM
2018, 2035, 2050. What do these dates have in common?
In around 2012, I have consciously given up on smartphones. Unprompted I won't evangelize you on why I did that, but attention management was a part of it. So while I have zero need to read it, I smiled at Hayes's book 'The Siren's Call' (tinyurl.com/8p6rznbt). Go Chris, heal some binge-scrollers.
The Sirens' Call: How Attention Became the World's Most Endangered Resource
The Sirens' Call: How Attention Became the World's Most Endangered Resource [Hayes, Chris] on Amazon.com. *FREE* shipping on qualifying offers. The Sirens' Call: How Attention Became the World's Most Endangered Resource
tinyurl.com
April 22, 2025 at 9:02 AM
In around 2012, I have consciously given up on smartphones. Unprompted I won't evangelize you on why I did that, but attention management was a part of it. So while I have zero need to read it, I smiled at Hayes's book 'The Siren's Call' (tinyurl.com/8p6rznbt). Go Chris, heal some binge-scrollers.
Gratulacje dla nowo upieczonej panie doktor.
Olga Tokarczuk, écrivaine polonaise prix Nobel de littérature, et Oliver Primavesi, spécialiste d'Aristote, Prix Leibniz, reçoivent la distinction de Docteurs Honoris Causa de Sorbonne Université !
🔴 www.youtube.com/live/nVwNxwa...
🔴 www.youtube.com/live/nVwNxwa...
March 26, 2025 at 7:33 PM
Gratulacje dla nowo upieczonej panie doktor.
Today I learned: "Theodore von Karman was mainly known as a constructor of the Bell X-1 aircraft". Luckily, I can edit Polish Wikipedia...
March 11, 2025 at 11:18 PM
Today I learned: "Theodore von Karman was mainly known as a constructor of the Bell X-1 aircraft". Luckily, I can edit Polish Wikipedia...
Reposted by Wojciech (Vôitek) Aniszewski
Sunday’s @thetimes.com cartoon times.newsprints.co.uk/morten-morla...
March 2, 2025 at 8:54 AM
Sunday’s @thetimes.com cartoon times.newsprints.co.uk/morten-morla...
On Dec 2nd, @esa.int premiered this breathtaking montage of Sentinel-2 photos. Titled "Journey to Liverpool" it also carries a - somewhat experimental - soundtrack by Robert del Naja of Massive Attack.
youtu.be/KenY5M2lH2E?...
youtu.be/KenY5M2lH2E?...
A Journey to Liverpool. ESA x 3D (Massive Attack)
YouTube video by ESA Extras
youtu.be
February 5, 2025 at 10:18 PM
On Dec 2nd, @esa.int premiered this breathtaking montage of Sentinel-2 photos. Titled "Journey to Liverpool" it also carries a - somewhat experimental - soundtrack by Robert del Naja of Massive Attack.
youtu.be/KenY5M2lH2E?...
youtu.be/KenY5M2lH2E?...
Another one of my photos got hit by Flickr's "explore" algorithm. Strange, got 0 hits for 15 years an now two over a month or so. This one: www.flickr.com/photos/30500...
[p125] Merge with dust
Just remembered I had this on the wall once. A beautiful memory (and those don't share well...). So this was taken with my then all-around camera, Zenith 12XP and it's default Helios 50mm, on a cheapo...
www.flickr.com
January 8, 2025 at 2:30 PM
Another one of my photos got hit by Flickr's "explore" algorithm. Strange, got 0 hits for 15 years an now two over a month or so. This one: www.flickr.com/photos/30500...
Getting a new agenda for 2025 meant a look at the 2024 one - and the previous one too. Here's four picks of my fav pages. See if you can spot just why I don't use Google Calendar... (11/03/2023, 05/06/2023, 05/17/2024, 12/10/2024)
January 3, 2025 at 10:16 PM
Getting a new agenda for 2025 meant a look at the 2024 one - and the previous one too. Here's four picks of my fav pages. See if you can spot just why I don't use Google Calendar... (11/03/2023, 05/06/2023, 05/17/2024, 12/10/2024)
I love 1-bit graphics. This excellent illustration - from Akio Tomiyama's 1998 invited talk given at the ICMF'98 in Lyon - shows just about what you need to know about a given bubble plume (and, granted, nothing more).
December 27, 2024 at 1:58 PM
I love 1-bit graphics. This excellent illustration - from Akio Tomiyama's 1998 invited talk given at the ICMF'98 in Lyon - shows just about what you need to know about a given bubble plume (and, granted, nothing more).
Science is strange sometimes. On one hand, 95% of scientists will agree with the article I cite here. www.experimental-history.com/p/the-rise-a...
On the other hand, however, 95% of job applications is rejected because the candidate has not enough peer-reviewed papers. Go figure.
On the other hand, however, 95% of job applications is rejected because the candidate has not enough peer-reviewed papers. Go figure.
The rise and fall of peer review
Why the greatest scientific experiment in history failed, and why that's a great thing
www.experimental-history.com
December 26, 2024 at 9:30 PM
Science is strange sometimes. On one hand, 95% of scientists will agree with the article I cite here. www.experimental-history.com/p/the-rise-a...
On the other hand, however, 95% of job applications is rejected because the candidate has not enough peer-reviewed papers. Go figure.
On the other hand, however, 95% of job applications is rejected because the candidate has not enough peer-reviewed papers. Go figure.
Of course I've seen such situations, even in France. Can't even say I'm outraged or something. What hurts, is a situation when one of the couple is stellar (and would win any position in a contest) but the spouse is far less so, so they rig the contest for the latter.
bsky.app/profile/ibog...
bsky.app/profile/ibog...
Over a third of professors are married to other professors. That creates a puzzle for hiring. I wrote about this curious practice that's immensely common to academia but nowhere else: Hiring the spouses of a person you want to recruit.
www.theatlantic.com/technology/a...
www.theatlantic.com/technology/a...
Legacy Admissions—But for Spouses
When you get a job as a professor, your partner may get one too.
www.theatlantic.com
December 10, 2024 at 1:34 PM
Of course I've seen such situations, even in France. Can't even say I'm outraged or something. What hurts, is a situation when one of the couple is stellar (and would win any position in a contest) but the spouse is far less so, so they rig the contest for the latter.
bsky.app/profile/ibog...
bsky.app/profile/ibog...
Splashy here is what we get if we continue the Basilisk simulation I posted an animation of some days ago. Here, rendered with Blender, and then some...
November 21, 2024 at 11:29 PM
Splashy here is what we get if we continue the Basilisk simulation I posted an animation of some days ago. Here, rendered with Blender, and then some...
A liquid (think, oil) jet, pretty laminar (Re approx 170, We=2500) crashes with a rotating wall (think, hot solid, to cool it down); splashing around and then slowly coating it. Heat transfers are there, but invisible in the vid...
Simulated in Basilisk, visu in Bview, ffmpeg and some Bash...
Simulated in Basilisk, visu in Bview, ffmpeg and some Bash...
November 14, 2024 at 1:38 PM
A liquid (think, oil) jet, pretty laminar (Re approx 170, We=2500) crashes with a rotating wall (think, hot solid, to cool it down); splashing around and then slowly coating it. Heat transfers are there, but invisible in the vid...
Simulated in Basilisk, visu in Bview, ffmpeg and some Bash...
Simulated in Basilisk, visu in Bview, ffmpeg and some Bash...