Hacker News: ephimetheus

New comment by ephimetheus in "Brookhaven Lab's RHIC concludes 25-year run with final collisions"

ephimetheus — Sat, 07 Feb 2026 23:22:43 +0000

sPHENIX uses software that we’ve worked on at CERN to do some of their reconstruction!

New comment by ephimetheus in "Inside the proton, the ‘most complicated thing you could possibly imagine’ (2022)"

ephimetheus — Sat, 27 Dec 2025 17:14:52 +0000

Oh yes and so much so! Electrons are point-like (not composite like a proton) and interact only electroweakly (not strongly).

New comment by ephimetheus in "Inside the proton, the ‘most complicated thing you could possibly imagine’ (2022)"

ephimetheus — Sat, 27 Dec 2025 12:50:40 +0000

There absolutely are direct neutron experiments, but they are much lower energy and have a different focus, partly because neutrons being neutral means they’re very hard to accelerate.

There’s an ultra cold neutron source at Paul Scherrer that is used to measure if the neutron has an electric dipole moment. This is complementary to high energy experiments.

New comment by ephimetheus in "Inside the proton, the ‘most complicated thing you could possibly imagine’ (2022)"

ephimetheus — Sat, 27 Dec 2025 09:14:38 +0000

I get what you’re saying, but the measurements are real. In some sense they are the truth.

In the article this refers to the finding that the quark is more complex than three valence quarks.

The measurements indicating that the three-quark-model is incomplete are overwhelmingly conclusive, so some degree of certainty in the language is warranted in my view.

New comment by ephimetheus in "Inside the proton, the ‘most complicated thing you could possibly imagine’ (2022)"

ephimetheus — Sat, 27 Dec 2025 09:11:11 +0000

Neutrons are just as complex, they’re much harder to study though.

New comment by ephimetheus in "Louvre to hike ticket prices for most non-EU tourists by 45%"

ephimetheus — Fri, 28 Nov 2025 15:59:55 +0000

Didn’t they just drastically increase the price for non US citizens? I think it almost went up by 10x

New comment by ephimetheus in "Jujutsu and Radicle"

ephimetheus — Fri, 15 Aug 2025 05:28:53 +0000

I appreciate the opinion, but that precludes it from being used in repos that are not jj-first and happen to use submodules.

New comment by ephimetheus in "Jujutsu and Radicle"

ephimetheus — Fri, 15 Aug 2025 05:25:41 +0000

I got into jujutsu recently for the mega merge workflow.

The only thing I’m missing now is support for git submodules, especially when working with workspaces.

This requires me to keep using git worktrees with collocated jj in each of them, which is suboptimal.

New comment by ephimetheus in "Show HN: I built a free alternative to Adobe Acrobat PDF viewer"

ephimetheus — Fri, 15 Aug 2025 05:10:08 +0000

Is selecting text in the PDF supported? I can’t get that to work in iOS Safari.

New comment by ephimetheus in "Jujutsu for busy devs"

ephimetheus — Tue, 22 Jul 2025 21:30:31 +0000

So far whenever jujutsu came up I didn’t find its features that convincing relative to git.

I have to say however that the mega merge workflow seems intriguing and might in fact be a solution to having to serialize my work like I do in git for now.

I think I’ll look into that.

New comment by ephimetheus in "Presentation Slides with Markdown"

ephimetheus — Mon, 28 Apr 2025 07:11:58 +0000

Exactly, I would've hoped someone could come up with a way to render markdown directly into a PDF, without roundtripping via tex and having to handhold the styling process in the way that's required now.

New comment by ephimetheus in "Presentation Slides with Markdown"

ephimetheus — Mon, 28 Apr 2025 05:47:43 +0000

What always disqualifies these projects for me is the fact that they need to use a headless browser to export to PDF. PDF export is the primary feature I need from these, and it’s a shame the export mechanism is still this slow and unreliable.

Trump Admin Plans to Cut Team Responsible for Critical Atomic Measurement Data

ephimetheus — Wed, 26 Mar 2025 19:45:34 +0000

Article URL: https://www.wired.com/story/nist-doge-layoffs-atomic-spectroscopy/

Comments URL: https://news.ycombinator.com/item?id=43486305

Points: 4

# Comments: 0

New comment by ephimetheus in "CDC: Unpublished manuscripts mentioning certain topics must be pulled or revised"

ephimetheus — Sun, 02 Feb 2025 20:12:46 +0000

This is a fantastic analogy!

New comment by ephimetheus in "Using Pandoc and Typst to Produce PDFs"

ephimetheus — Sat, 30 Nov 2024 08:15:18 +0000

Which package do you mean? Last time I tried this it was kind of clunky.

New comment by ephimetheus in "How CERN serves 1EB of data via FUSE [video]"

ephimetheus — Wed, 02 Oct 2024 05:40:01 +0000

For experiment data, there is a layer on top of all of this that distributes datasets across the computing grid. That system has a way to handle replicate at the dataset level.

New comment by ephimetheus in "Paperless-ngx: scan, index and archive all your physical documents"

ephimetheus — Tue, 01 Oct 2024 05:48:25 +0000

Paperless-ngx is fantastic! I’ve been running it for a while and it works great!

I wrote an iOS [1] app to connect to you instance and it’s open source [2].

[1] https://apps.apple.com/de/app/swift-paperless/id6448698521

[2] https://github.com/paulgessinger/swift-paperless

New comment by ephimetheus in "Please add a "dark" theme for Hacker News"

ephimetheus — Tue, 30 Jul 2024 06:52:45 +0000

Doesn’t work in web views unfortunately.

New comment by ephimetheus in "Please add a "dark" theme for Hacker News"

ephimetheus — Tue, 30 Jul 2024 06:48:02 +0000

iOS embedded safari doesn’t run them unfortunately.

I mainly read HN from an RSS reader, whose web view always shows light mode.

New comment by ephimetheus in "Montana Has More Cows Than People. Why Are Locals Eating Beef from Brazil?"

ephimetheus — Sun, 07 Jul 2024 05:29:05 +0000

Especially meat is particularly expensive in Switzerland, however, compare to most of Europe. The marketing somehow managed to cement this a meaning higher quality, and the population largely accepts the higher price.