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westurner

4,668 karmajoined 13 лет назад
WebDev, DevOps, Data

https://westurner.org/

These comments are publicly archivable and logged: https://westurner.github.io/hnlog/

[ my public key: https://keybase.io/westurner; my proof: https://keybase.io/westurner/sigs/3t_WnYf465hEbUSdwjMXGIeLieAd_81SDYQUdDUMsI4 ]

Submissions

Seawater batteries for energy storage, desalination and carbon sequestration

nature.com
1 points·by westurner·18 дней назад·5 comments

After "Late Show" ends, Stephen Colbert hosts Monroe public access show [video]

youtube.com
2 points·by westurner·2 месяца назад·1 comments

Why some metals turn transparent: A key mechanism for touchscreen conductors

phys.org
5 points·by westurner·4 месяца назад·2 comments

Quantized Hall Drift in a Frequency-Encoded Photonic Chern Insulator

link.aps.org
2 points·by westurner·4 месяца назад·0 comments

Reconfigurable single-walled carbon nanotube ferroelectric FET transistors

nature.com
2 points·by westurner·4 месяца назад·0 comments

Remarkable reusable liquid stores solar energy like bottled sunlight

newatlas.com
4 points·by westurner·5 месяцев назад·1 comments

Diamond owl swoops in with new method to keep electronics cool

news.rice.edu
6 points·by westurner·5 месяцев назад·1 comments

Sunlight-powered process turns plastic waste into acetic acid without emissions

phys.org
1 points·by westurner·5 месяцев назад·3 comments

3D-Printed electric motor via multi-modal, multi-material extrusion

tandfonline.com
35 points·by westurner·5 месяцев назад·11 comments

Sub-second volumetric 3D printing by synthesis of holographic light fields

nature.com
5 points·by westurner·5 месяцев назад·0 comments

Porous material uses green and blue light to repeatedly store and release CO₂

phys.org
5 points·by westurner·5 месяцев назад·1 comments

Resolving intervalley gaps and many-body resonances in moiré superconductors

nature.com
2 points·by westurner·5 месяцев назад·3 comments

Sand heat storage with circulating sand reduces energy costs and CO2 emissions

heise.de
1 points·by westurner·5 месяцев назад·0 comments

Shape-adaptive circuits based on liquid metal printed on thermoplastic films

nature.com
2 points·by westurner·5 месяцев назад·1 comments

Scientists discover hidden geometry that bends electrons like gravity

sciencedaily.com
3 points·by westurner·5 месяцев назад·2 comments

Sustainable thermal paper formulation using lignocellulosic biomass fractions

science.org
1 points·by westurner·5 месяцев назад·1 comments

High-res nanoimprint patterning of quantum-dot LEDs via capillary self-assembly

nature.com
5 points·by westurner·5 месяцев назад·1 comments

Superfluids supposed to flow indefinitely; but observed a Supersolid

phys.org
4 points·by westurner·5 месяцев назад·1 comments

Low-power integrated optical amplification through second-harmonic resonance

nature.com
2 points·by westurner·5 месяцев назад·0 comments

Ferroelectric ultraviolet photodetector material with ultrafast response speed

nature.com
1 points·by westurner·5 месяцев назад·1 comments

comments

westurner
·вчера·discuss
I've had some success with using a more expensive model to plan a decent work breakdown structure in a document and then a low-cost model to implement the plan and keep following-up, but wonder about subsequent need for code review and code quality.

Can a lower-cost model verify completion? Iff tests and test coverage and e2e tests?

The same oracle / model routing and partitioning problem
westurner
·позавчера·discuss
Here's the official mermaid vscode ext: MermaidChart.vscode-mermaid-chart: https://marketplace.visualstudio.com/items?itemName=MermaidC... .. src: https://github.com/Mermaid-Chart/vscode-mermaid-chart :

> @mermaid-chart

The functionality of the vscode-mermAId extension was merged into vscode FWIU? From https://code.visualstudio.com/updates/v1_109#_mermaid-diagra... :

> Mermaid diagrams in chat responses

> Chat responses can now render interactive Mermaid diagrams with the renderMermaidDiagram tool. This lets models use flowcharts, sequence diagrams, and other visualizations to visually break down complex concepts. The diagrams are interactive, so you can pan and zoom to explore them in detail, or open them in a full-sized editor for easier viewing.
westurner
·позавчера·discuss
Happy Disability Pride Month!

> If you are disabled, and you want to share your experience in FLOSS communities or have accessibility issues in GNOME or other FLOSS software, report the issues and/or post about them on social media under #AccessibilityInFreeSoftware

> If you are a contributor, see if you can tackle one of the roughly 450 open issues that are labeled with “Accessibility” this month.

450 open issues: https://gitlab.gnome.org/groups/GNOME/-/work_items?state=ope...
westurner
·позавчера·discuss
"Follow up to verify that the work was actually satisfactorily completed"

Are there other sound management practices that aren't yet effectively implemented in current gen agents?
westurner
·4 дня назад·discuss
Is this also where to attach provenance metadata and sign the agent trace, and debug?

Re: MCPSnoop, proxies like Aegis and LiteLLM, and awesome-auditable-ai: https://news.ycombinator.com/item?id=48777144#48779413

There are web standards for signing metadata with interoperable schema as linked data:

W3C JSON-LD/YAML-LD + W3C PROV + W3C DID + W3C VC Verifiable Claims
westurner
·4 дня назад·discuss
From https://github.com/akahkhanna/groundtruth :

> Groundtruth — a Claude Code plugin that audits whether an agent actually did what it was asked; catches the false 'Done' on Stop (missed subtasks, stubs, false 'tests pass', overridden rules).

Which other agent IDEs does or could this work with?
westurner
·4 дня назад·discuss
99% of users are lurkers.

I also find myself exercising verbal skills possibly unnecessarily (with a language learning app that's certainly not immersion) but probably predictably.

I've heard that they say to exercise mental arithmetic skills if stranded on a desert island with no reading material; and that it's normal to develop self dialogue in solitary
westurner
·4 дня назад·discuss
Data sources; Data quality:

- Is there a suggested bibtex citation for this analysis?

- BibTeX in git for the data and the estimates can be referenced with citation identifiers with various static site build tools. Schema.org/Dataset and ScholarlyArticle JSON-LD is probably easier with React. It should be possible to generate BibTeX from JSON-LD (e.g. with citeproc-js and n3.js or rdflib.js or solidjs/react-solid-state or a different RDFJS solution that can template BibTeX).

- DVC is one way to check data into git, and to evaluate sensitivity to data quality and specificity

Additional features probably worth tracking:

- Zero Water facility?

- Types of thermal fluid in use: Water,

- Heat recovered : Heat and water forfeited to evaporative cooling

- Water egress: % purple pipe water, % steam
westurner
·4 дня назад·discuss
Metrics for this?

OPS/FLOPS/TOPS/QOPS: OPS/kWhr, OPS/liter_water,

From https://www.thegreengrid.org/ , whose board includes many industry folks:

WUE: Water Usage Effectiveness: https://en.wikipedia.org/wiki/Water_usage_effectiveness

GPUE: Green Power Usage Effectiveness: https://en.wikipedia.org/wiki/Green_Power_Usage_Effectivenes...
westurner
·4 дня назад·discuss
How does performance compare to RustPython compiled in a similar way?
westurner
·4 дня назад·discuss
But there was neurogenesis.

And, just thinking about other cultures
westurner
·4 дня назад·discuss
Way, way oversold and that's all debt; (because they think that it's a joyride and that they get to just dump the post at the end).

The economics of computing will need to change in order to sustainably satisfy demand for AI services.

If there's going to be a crash, can the AI companies even liquidate the chips they bought? At mil-grade, they cannot.

Will there then be a glut of RAM instead of the current perfect storm of geopolitical stressors and alleged collusion?

Meta recently posted a solution for reusing decommissioned RAM with CXL and Vistara; "Meta reuses old RAM in new servers with custom bridge chip" https://news.ycombinator.com/item?id=48778956 .. https://aisystemcodesign.github.io/papers/isca26/vistara_cam... :

> to newer servers as expanded memory alongside servers’ local memory (e.g., DDR5 DIMMs). This approach offers a compelling combination of benefits: near zero-cost memory expansion through recycling, performance gains from higher memory capacity, and a reduced carbon footprint.

Circularly recyclable chips would increase the liquidation value of existing AI datacenters.

AI datacenters are angering people; cooling tower wash in the paltry remaining water pressure, loud hum, emissions from generators, steam for dumb cooling that's not zero water for example.

When the malarky hits the fan for some of these oversold AI companies, will there be constraints defining what is an acceptable AI datacenter?
westurner
·6 дней назад·discuss
IIUC, hot plasma sterilizes water with hydroxyl free radicals and cold plasma sterilizes water with hydroxyl free radicals.

Air is about 78% Nitrogen. We use plasma, Haber-Bosch, and Biological Fixation to convert Nitrogen in air and water into Nitrates that plants can use.

Is there research on which method of production of fertilizing nitrates is most energy efficient?

I have a Chitosan-Alginate geotextile water bag concept where the geotextile is treated with Magnesium so that it will form Struvite. This one is from a chat called, "Multifunctional biochemical matrix"; https://github.com/westurner/sustainablefactory/blob/main/do...

I tried to add headings to the chats to make them something. But I just found what look like better tools for backing up chats, and also OpenInference and SIOC specs for archiving and indexing LLM chats.
westurner
·6 дней назад·discuss
Brand new PQ in pyca is cool too.

When you make an https request in Python, which library does it use for the TLS TCP socket wrapper?

OpenSSL.

The TLS PEP was never accepted or implemented.

There's a rustls PQ issue.

Only certain things in Python use pyca/cryptography.
westurner
·7 дней назад·discuss
ScholarlyArticle: "Vistara: Making CXL Real—Full Path from ASIC Design and OS Support to Hyperscale Deployment" (2026) https://aisystemcodesign.github.io/papers/isca26/vistara_cam...

TIL there are 2x 2.5GbE PCI-E HAT adapters for Pi 5.

How to attach RAM to the new NVLink/UALink fiber buses?
westurner
·7 дней назад·discuss
Remote debugging and post-mortem debugging support might be useful.

There are many AI auditability proxies;

awesome-auditable-ai: "A curated list of papers, tools, datasets, benchmarks, and standards for building, evaluating, and auditing reliable AI agents" https://github.com/yzhao062/awesome-auditable-ai

Aegis and LiteLLM, for example, are pre-execution firewalls that add a cryptographic audit trail. https://github.com/Justin0504/aegis
westurner
·8 дней назад·discuss
Looks like Waveshare has a E6 full color ePaper/eInk/EPD display in 3.6" and 7.3" but not yet in 5.83":

"5.83inch E-Paper Display (G), E-ink Display, 648 × 480, Red/Yellow/Black/White, SPI Interface" https://www.waveshare.com/5.83inch-e-paper-g.htm?sku=32584
westurner
·8 дней назад·discuss
There are discussions of round-trip between Rust and C;

Would this be useful for this too?

From https://news.ycombinator.com/item?id=46265855 :

> To better port C to Rust: 3C (Checked C), c2rust, Crown ownership analysis, RustMap, c2saferrust (LLM), Laertes

C -> Checked C -> Rust

Because Checked C will annotate the raw and other C pointers first.
westurner
·9 дней назад·discuss
Also consider tDCS trans-cranial direct current simulation and learning rate?

- tDCS and learning rate: https://www.google.com/search?q=tDCS+and+learning+rate
westurner
·10 дней назад·discuss
From "MIT engineers turn skin cells directly into neurons for cell therapy" https://news.ycombinator.com/item?id=44310706 .. https://news.mit.edu/2025/mit-engineers-turn-skin-cells-into... :

"Proliferation history and transcription factor levels drive direct conversion to motor neurons" (2025) https://www.cell.com/cell-systems/abstract/S2405-4712(25)000...

Infrared light stimulates neuronal growth and blue and green inhibit neuronal growth; https://news.ycombinator.com/item?id=43087954

"Dance training superior to physical exercise in inducing brain plasticity (2018)" https://journals.plos.org/plosone/article?id=10.1371/journal... .. https://news.ycombinator.com/item?id=41732782 ; and is plasticity neurogenesis? Does boosting neurogenesis improve iPSC outcomes?