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Green Fabrication of Sulfonium-Containing Bismuth Materials for X-Ray Detection

https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202418626
8•PaulHoule•3d ago

Comments

burnt-resistor•4h ago
We really need more low energy, high resolution portable X-ray systems in all sorts of trades for NDT weld inspections and also for ordinary parts serviceability to look for hidden fatigue and cracks. Also, for blacksmiths to determine strength and quality of bespoke objects.

Heck, maybe low energy home medical X-ray systems will be a thing too. Note that there's an overuse of high energy CT scans in clinical settings in the US at present.

hammock•2h ago
I tend to agree on the overuse of high energy but will also point out We used to use x-ray machines in shoe stores to measure your foot size…(spoiler it didn’t end well)
habi•7m ago
> low energy, high resolution portable X-ray systems in all sorts of trades for NDT weld inspections

> low energy home medical X-ray systems

The low energy you desire might not be high enough to penetrate the object you want to image, either a weld to inspect, the blacksmiths bespoke object or the human. For imaging human tissue you want high energy for less radiation dose in the patient. That’s why x-rays are filtered by some mm of aluminum before imaging a patient. These filtered lower energy photons would be absorbed in the patient anyways.

New research reveals the strongest solar event ever detected, in 12350 BC

https://phys.org/news/2025-05-reveals-strongest-solar-event-bc.html
107•politelemon•3d ago•43 comments

The principles of database design, or, the Truth is out there

https://ebellani.github.io/blog/2025/the-principles-of-database-design-or-the-truth-is-out-there/
23•b-man•2h ago•9 comments

“There are people who can see and others who cannot even look”

https://worldhistory.substack.com/p/there-are-people-who-can-see-and
77•crescit_eundo•4h ago•9 comments

Spaced repetition systems have gotten better

https://domenic.me/fsrs/
780•domenicd•17h ago•438 comments

Font Activations: A Note on the Type

https://robhorning.substack.com/p/font-activations
23•prismatic•2d ago•0 comments

Ditching Obsidian and building my own

https://amberwilliams.io/blogs/building-my-own-pkms
290•williamsss•12h ago•299 comments

Layers All the Way Down: The Untold Story of Shader Compilation

https://moonside.games/posts/layers-all-the-way-down/
11•birdculture•2h ago•3 comments

Show HN: I modeled the Voynich Manuscript with SBERT to test for structure

https://github.com/brianmg/voynich-nlp-analysis
305•brig90•12h ago•95 comments

France Endorses UN Open Source Principles

https://social.numerique.gouv.fr/@codegouvfr/114529954373492878
337•bzg•6h ago•76 comments

The Connoisseur of Desire

https://www.nybooks.com/articles/2025/05/29/the-connoisseur-of-desire-the-annotated-great-gatsby/
13•samclemens•2d ago•0 comments

$30 Homebrew Automated Blinds Opener

https://sifter.org/~simon/journal/20240718.html
223•busymom0•11h ago•92 comments

Show HN: Vaev – A browser engine built from scratch (It renders google.com)

https://github.com/skift-org/vaev
158•monax•11h ago•71 comments

America's College Towns Go from Boom to Bust

https://www.wsj.com/us-news/education/college-towns-economy-macomb-illinois-aae84dcc
39•JumpCrisscross•2h ago•16 comments

Show HN: A platform to find tech conferences, discounts, and ticket giveaways

https://www.tech.tickets/
61•danthebaker•2d ago•17 comments

Spaced Repetition Memory System

https://notes.andymatuschak.org/Spaced_repetition_memory_system
192•gasull•13h ago•16 comments

Show HN: Job board aggregator for best paying remote SWE jobs in the U.S.

https://www.remoteswe.fyi
20•xitang•4h ago•7 comments

The Tongue Is a Fire

https://www.lrb.co.uk/the-paper/v47/n09/ferdinand-mount/the-tongue-is-a-fire
11•Petiver•3d ago•1 comments

Hyper Typing

https://pscanf.com/s/341/
62•azhenley•8h ago•51 comments

Publisher: The Malloy Semantic Model Server

https://github.com/malloydata/publisher
14•cpard•1d ago•0 comments

K-Scale Labs: Open-source humanoid robots, built for developers

https://www.kscale.dev/
74•rbanffy•9h ago•39 comments

Show HN: Python Simulator of David Deutsch’s “Constructor Theory of Time”

https://github.com/gvelesandro/constructor-theory-simulator
60•SandroG•8h ago•7 comments

The Fall of Roam (2022)

https://every.to/superorganizers/the-fall-of-roam
106•ingve•10h ago•56 comments

Comparing Parallel Functional Array Languages: Programming and Performance

https://arxiv.org/abs/2505.08906
62•vok•2d ago•11 comments

Show HN: Buckaroo – Data table UI for Notebooks

https://github.com/paddymul/buckaroo
90•paddy_m•13h ago•8 comments

In Memoriam: John L. Young, Cryptome Co-Founder

https://www.eff.org/deeplinks/2025/05/memoriam-john-l-young-cryptome-co-founder
184•coloneltcb•3d ago•19 comments

Emergent social conventions and collective bias in LLM populations

https://www.science.org/doi/10.1126/sciadv.adu9368
56•jbotz•12h ago•18 comments

Living beings emit a faint light that extinguishes upon death, study

https://phys.org/news/2025-05-emit-faint-extinguishes-death.html
53•pseudolus•4h ago•23 comments

The Journal of Imaginary Research

https://journalofimaginaryresearch.home.blog/
25•cenazoic•2d ago•2 comments

Mystical

https://suberic.net/~dmm/projects/mystical/README.html
377•mmphosis•1d ago•44 comments

Show HN: Hardtime.nvim – break bad habits and master Vim motions

https://github.com/m4xshen/hardtime.nvim
176•m4xshen•16h ago•69 comments