Jeffrey Chamberlain
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klintusfang.net
Jeffrey Chamberlain
@klintusfang.net
Microarchitect by trade. Mathematician and physicist by formal training. Boardgamer and roleplayer for relaxation with friends. Planetary Society member.

A poem: https://www.klintusfang.net/poetry/poetry/final/symmetry-emergent.html
Reposted by Jeffrey Chamberlain
Inside bird eyes is a strange and mysterious structure called the pecten oculi. It looks like a pancake flipper, or maybe a radiator. Some 350 years after anatomists first described it, biologists finally figured out its purpose. www.quantamagazine.org/how-the-bird...
May 17, 2026 at 3:46 PM
The last panel of the tattoo work is finally done, and healed. Hannah is amazing.

#tattoo #ursamajor #whirlpoolgalaxy #leo #gemini #auriga #taurus #orion #orion #sanfranciscoskyline #tattoosbyhannah
May 3, 2026 at 6:54 PM
Hannah started the last main section of the #tattoo sleeve. That's the #whirlpoolgalaxy, #ursamajor done as a mammoth, #leo, #orion, #taurus, and the #pleiades. It is only five days in, so it's still healing and peeling. Much of the coloring and shading is also yet to be finished.
March 30, 2026 at 3:57 AM
This a #poem I wrote between the years 2011 and 2025. It was not a continuous effort. There were entire years in that interval during which I wrote nothing at all.

open.substack.com/pub/klintusf...

#poetry #art #science #philosophy
Art and Science
I’d not thought to post anything here when I joined.
open.substack.com
March 28, 2026 at 7:22 PM
A topic close to my heart. In fascinated with the fact the dog domestication predates the development of agriculture.
March 25, 2026 at 5:01 PM
March 22, 2026 at 12:44 AM
The color is clearer with the skin healed. #tattoo #saturn
March 15, 2026 at 10:19 PM
Reposted by Jeffrey Chamberlain
What if the inside of black holes are a roiling sea of space and time stretching and compressing in multiple directions? www.quantamagazine.org/new-maps-of-...
March 1, 2026 at 4:46 PM
www.quantamagazine.org/climate-phys...

A good read both for how it covers the current state of uncertainty in climate modeling, as well as it's coverage of the new methods for dealing with the limitations that neural nets have made available.
Climate Physicists Face the Ghosts in Their Machines: Clouds | Quanta Magazine
The planet is getting hotter, but one factor in particular makes it hard to tell just how hot it will get. Physicists and computer scientists are racing to solve the problem of clouds.
www.quantamagazine.org
February 22, 2026 at 6:06 PM
The third section of the sleeve is done.

#tattoo #saturn
February 21, 2026 at 1:09 AM
Some improvised yard art taking some licks in a steady rain

lazy morning w/ @gingervoninjure.bsky.social
February 16, 2026 at 7:04 PM
Maybe this will fade to a space where pictures of our little slice of the east San Francisco Bay pop up intermittently @gingervoninjure.bsky.social

#sanfranciscobay #eastbay #trivalley #dublin
February 16, 2026 at 5:15 PM
Stormy weather is rolling in over Dublin, California

#sanfranciscobay #california #trivalley #dublin
February 16, 2026 at 12:41 AM
Reposted by Jeffrey Chamberlain
In a moment of defeat, the brain undergoes a sudden shift. The neuroscientist Misha Ahrens (left) and his student Alex Chen showed that cells called astrocytes help to shift the brain state from hope to hopelessness.
www.quantamagazine.org/once-thought...
February 1, 2026 at 4:46 PM
This also appears directly related to the challenges discussed in my previous repost since LLMs are modelled after networks of neurons, and this article is about an important network in the brain that runs parallel to the networks of neurons for which an LLM has no analog.
In 1989, this video shook up neuroscience. Here, glutamate triggers waves of calcium movement between astrocytes, large brain cells that reach millions of neurons. A new wave of research is revealing how this behavior influences our brain states.
www.quantamagazine.org/once-thought...
February 1, 2026 at 2:15 PM
The raw interactions quoted here with what the article calls a misaligned LLM are disturbing. But to see this behavior being studied at this level is encouraging.
February 1, 2026 at 1:52 PM
My #tattoo is slowly progressing.
January 30, 2026 at 1:06 AM
Reposted by Jeffrey Chamberlain
The “MaxCut” problem is a fundamental question about graphs with real-world applications, like efficient circuit design. Recently, work on MaxCut helped mathematicians solve a major problem in number theory.
www.quantamagazine.org/networks-hol...
January 29, 2026 at 4:46 PM
Winter vegetables. #garden #wintervegetables
January 19, 2026 at 12:24 AM
Reposted by Jeffrey Chamberlain
Reposted by Jeffrey Chamberlain
I'm a few months behind, but is still worth a listen now. That sample container is prepped and ready to be picked up. It is expensive to do so, but it's also a sample that will aid our understanding of the origins of life if we could get it from there to here.

open.spotify.com/episode/0xtK...
Space Policy Edition: Should a (potential) biosignature revive Mars Sample Return?
open.spotify.com
December 30, 2025 at 11:43 PM