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The moment Pearl Jam went to war with Ticketmaster

https://faroutmagazine.co.uk/pearl-jam-war-with-ticketmaster/
1•herbertl•48s ago•0 comments

Ancient proteins could transform palaeontology

https://www.economist.com/science-and-technology/2025/07/10/ancient-proteins-could-transform-palaeontology
1•bookofjoe•1m ago•1 comments

Building a Simple Router with OpenBSD

https://btxx.org/posts/openbsd-router/
1•pierremenard•3m ago•0 comments

Building GoReleaser: from shell script to paid product

https://carlosbecker.com/posts/codecon-goreleaser/
2•ingve•3m ago•0 comments

Show HN: Product Analytics for Ethereum Smart Contracts (Free and Open to All)

https://moirailabs.com/
1•Victorius•9m ago•0 comments

HN's HTML has changed. HN's new HTML violates the HTML5 standard

http://Certain[dead]storiesnowomitthesubmittedURL.Thisleavesan%3Ca%3Eelementwithoutanhref=attribute.ThisisallowedbytheHML5standard.Butinsomecases,the%3Ca%3Eelementstillincludesarel=attribute,i.e.,%3Carel=%22nofollow%22%3E.AccordingtotheHTML5standard,this%22mustbeomitted%22.
1•1vuio0pswjnm7•10m ago•2 comments

Writing a Browser from Scratch

https://github.com/tavro/blog-posts/blob/main/custom-browser-engine-1.md
3•tisseh•10m ago•1 comments

In praise of Mission Creep (2022)

https://www.aam-us.org/2022/06/15/in-praise-of-mission-creep/
1•hitekker•11m ago•0 comments

The Future of Ultra-Fast Passenger Travel

https://spaceambition.substack.com/p/beyond-the-sound-barrier
2•simonebrunozzi•15m ago•1 comments

Frequent users of ChatGPT are robust detectors of AI text

https://arxiv.org/abs/2501.15654
1•wrp•20m ago•1 comments

Don't Animate Height

https://www.granola.ai/blog/dont-animate-height
1•birdculture•21m ago•0 comments

The Tragedy of Reinforcement Learning

https://twitter.com/jsuarez5341/status/1946622588891107565
1•pr337h4m•22m ago•0 comments

Dana Scott on the lambda calculus, then and now [pdf]

https://www.cis.upenn.edu/~cis5110/lambda_calculus_timeline-Scott.pdf
1•fanf2•23m ago•0 comments

Palatable Conceptions of Disembodied Being

https://arxiv.org/abs/2503.16348
1•amrrs•26m ago•0 comments

Does the NYT Want Culture Writing or TikTok Videos?

https://hellgatenyc.com/nyt-critics-reassigned-tiktok-culture-writers/
1•tolerance•27m ago•0 comments

Spring Boot Performance: Avoid Default Config Pitfalls

https://theperfparlor.com/2025/07/18/spring-boot-performance-avoid-default-config-pitfalls/
1•skyhead•27m ago•0 comments

Ask HN: Does casting work from Chrome Mobile browser?

1•01jonny01•32m ago•1 comments

A Rare Object Found Deep in the Kuiper Belt – Universe Today

https://www.universetoday.com/articles/a-rare-object-found-deep-in-the-kuiper-belt
1•rbanffy•32m ago•0 comments

When tech CEOs are like grumpy ducklings

https://www.programmablemutter.com/p/when-tech-ceos-are-like-grumpy-ducklings
1•herbertl•32m ago•0 comments

Fascism for First Time Founders

https://www.techdirt.com/2025/07/17/fascism-for-first-time-founders/
4•exiguus•32m ago•0 comments

6-Axis Accessible Open-Source 3D-Printed Robotic Arm for Research and Education

https://www.mdpi.com/2813-6640/3/3/7
1•PaulHoule•34m ago•0 comments

How to Write Rust in the Kernel

https://lwn.net/Articles/1024941/
1•ibobev•35m ago•0 comments

Introduction to Special Relativity, Quantum Mechanics and Nuclear Physics [pdf]

https://websites.umich.edu/~ners311/CourseLibrary/book.pdf
2•ibobev•35m ago•0 comments

Quantum Mechanics for Engineers [pdf]

https://websites.umich.edu/~ners311/CourseLibrary/Dommelen.pdf
2•ibobev•36m ago•0 comments

Astronomer CEO Andy Byron Resigns Following Viral Coldplay Kiss Cam Drama

https://www.aol.com/astronomer-ceo-andy-byron-resigns-201023944.html
2•Bluestein•36m ago•0 comments

Show HN: I made an extension for VSCode that integrates opencode

https://marketplace.visualstudio.com/items?itemName=bascodes.opencode-inofficial
2•sebst•40m ago•0 comments

How Military Insignia Revealed Russia's Hidden Sigint Network

https://checkfirst.network/decoding-secrets-through-symbols-how-military-insignia-revealed-russias-hidden-sigint-network/
2•campuscodi•42m ago•0 comments

Show HN: A rudimentary game engine to build four dimensional VR evironments

https://www.brainpaingames.com/Hypershack.html
1•teemur•42m ago•0 comments

Next car may feature an AI talking mouse, stress monitor and more

https://subscribe.freep.com/restricted?return=https%3A%2F%2Fwww.freep.com%2Fstory%2Fmoney%2Fcars%2Fmark-phelan%2F2025%2F07%2F19%2Fmusk-tesla-harman-ai-talking-mouse-stress-monitor%2F84710623007%2F&gps-source=CPROADBLOCKDH&itm_source=roadblock&itm_medium=onsite&itm_campaign=premiumroadblock&gca-cat=pp&gca-ds=override
1•rmason•42m ago•2 comments

My thoughts on calculating ROI for AI investment at a Series B startup

https://hbmartin.substack.com/p/roi-for-implementing-ai-automation
1•hmartin•47m ago•1 comments
Open in hackernews

Pimping My Casio: Part Deux

https://blog.jgc.org/2025/07/pimping-my-casio-part-deux.html
147•r4um•13h ago

Comments

ajsnigrutin•11h ago
TSA: "Sir, are you wearing the terrorist watch?"

You: "no no, it's a modified terrorist watch, it now has more features!"

https://www.spiegel.de/international/world/al-qaida-s-watch-...

https://www.watchesofespionage.com/blogs/woe-dispatch/casio-...

jgrahamc•10h ago
Typically I wear this watch instead: https://blog.jgc.org/2025/06/the-discreet-charm-of-infrastru...
dustypotato•9h ago
brb gotta buy a casio lineage watch now
rwmj•6h ago
IMO the Casio Oceanus S100 is a better watch in that category - solar powered, radio-controlled, waterproof, no apps or connectivity, but more dressy. However it's JDM only so you have to order it off eBay (or buy it on a trip to Japan I suppose).
Findecanor•3h ago
The Sensor Watch wiki lists several other compatible Casio watches [1] that all came with a Casio Module 593. Several have a metal finish, or even a round case. The module number is etched on the steel back.

All modern compatible watches from Casio are made of plastic: black or chromed plastic. Only some vintage models are in real metal. Vintage watches that came with modules 451, 587, 590 or 595 (maybe more) will also fit a module 593, but you'd still have to source a module 593 for its plastic chassis and other parts. Also, just the other week there popped up a steel replacement case for sale on AliExpress, which as been confirmed to work fine.

I bought a vintage Casio W-34 (Module 590) just for my Sensor Watch because I wanted one of steel and because it resembled my broken A158W that I had used for years.

1. https://www.sensorwatch.net/docs/#need-to-buy-a-watch

_false•10h ago
What's the process of adding sensors to the custom motherboard? Based on your watchface config it looks like you added accelerometer. I wonder what other sensors are easy to add. I'd love to have an hrm in mine
jgrahamc•10h ago
There are details on the sensor part here: https://www.sensorwatch.net/docs/sensorboards/ and reference designs here: https://github.com/joeycastillo/Sensor-Watch/tree/main/PCB/S...
TMSai•10h ago
This is a brill project
justmarc•10h ago
Very cool! What's the expected battery run time?
jgrahamc•10h ago
See: https://www.crowdsupply.com/oddly-specific-objects/sensor-wa... Answer: 1 to 2 years. My previous watch from the original blog post is still running on the original battery.
justmarc•10h ago
Thank you, John.

Coincidentally, your web site https://jgc.org/ is truly a lovely example of https://news.ycombinator.com/item?id=44613625 which was just discussed today as well.

Love your behind the screens stuff!

jgrahamc•10h ago
Thanks! Glad you enjoy https://behind-the-screens.tv. Those videos were an enormous amount of work because of all the original research behind them. I do have one more I'd like to do about this film: https://www.rottentomatoes.com/m/defense_play_1987 One day perhaps!
justmarc•10h ago
Oh I don't doubt it! I was thinking how does such a busy man have time for this... but we always have time for passions and side projects :)

The airwolf one was funny, since it was a childhood favorite, and what a funny little typo they had there.

When watching the video I was thinking to myself, could this series have influenced my future interests in ways I didn't even know? Fun.

jgrahamc•7h ago
The key to doing things when you're very busy is to do them slowly and not drive yourself crazy with a deadline. When I did the ThinkPad 701c restoration it took me a year!
justmarc•6h ago
Old Thinkpads were truly glorious machines. Top notch engineering and materials.
eabeezxjc•10h ago
is any Linux version? I'm not using brew
teruakohatu•10h ago
Brew run on Linux just as well as on MacOS.
mikae1•6h ago
It’s actually the default package manager for uBlue distros.

I’ve used it as my only package manager on Linux for a few years and I love it.

jgrahamc•7h ago
Windows, macOS and Linux instructions here: https://www.sensorwatch.net/docs/movement/building/
teruakohatu•9h ago
I have been reluctantly holding off hoping they will come out with a dot matrix or epaper screen. Neither will probably ever happen but I can dream.
beefsack•9h ago
I absolutely loved my Pebble. It was so amazing in its own niche.
mbirth•8h ago
You do know that Pebble is back from the dead?

https://repebble.com

simgt•9h ago
There is this one: https://gitlab.com/_Pegor/kepler_fw
andoando•1h ago
Oh this looks awesome
thebruce87m•8h ago
> Since I bought the optional accelerometer add on it's necessary to put in place a little piece of caption tape

This should be _Kapton Tape_ https://croylek.com/pages/kapton-tape?srsltid=AfmBOoqVfkbfaW...

jgrahamc•7h ago
Argh. Motherducking autocorrect!
rtaylorgarlock•1h ago
In context, anyone who needs to understand almost certainly got it. Right? I haven't heard of 'caption tape', but I definitely have seen lots of misspellings of 'kapton' in context. :D
throwanem•8h ago
Admittedly my watch only gets 1/50 the battery life and doesn't pick up WWV. On the other hand, being able to redesign its face in Emacs and Illustrator and update it OTA makes up for a lot. So does not having to wear a molded polymer bracelet - those things are awful!
BenjiWiebe•6h ago
What's wrong with molded polymer bracelets? I assume you're referring to the wristband? I've really only worn one watch and it has a molded polymer wristband, and it doesn't bother me, but maybe I'm missing out on something nicer.
neom•8h ago
This, is how to enjoy your retirement. Hope we see lots of other fun projects like this from you John, a very enjoyable read. :)
jgrahamc•7h ago
This is a really simple "project" because someone else did all the work! I just had to install the thing and make some tiny code modifications for my taste.
Disposal8433•8h ago
> git clone --recurse-submodules [...]

Small improvement but it should get the clone and the submodules at the same time.

zippyman55•6h ago
Respect.
Sophia95•4h ago
Clicked on this thinking it was about a calculator, so impressed that it was about swapping out the guts of an casio watch and building and uploading the firmware.
jgrahamc•2h ago
I do also like calculators: https://blog.jgc.org/2025/04/just-one-more-calculator-bro-ju...
snozolli•4h ago
Reminds me of the Texas Instrument Chronos, which was a watch that existed solely to promote the MSP430. I think it was released around 2013. Looks like it's no longer in production, but you can find them used around $40.
maxglute•2h ago
very cool. casio would make killing building fitness band with 3-4 week battery life in the form factor of f91w. cheap fitness bands are basically already the mass smart watches of our era.
orkj•1h ago
Did you see this one? https://www.casio.com/europe/watches/casio/vintage/product.A...
wronex•1h ago
I really like that USB port. It can probably be made to work in both directions (like USB-C). Does it require a special PCB thickness that is hard to come by?
guestbest•1h ago
Was there ever a version of this that would run a full blown DOS?
RubenSandwich•55m ago
Love to see the simulator screenshot. I was the one who added simulator support for the custom LCD: https://github.com/joeycastillo/second-movement/pull/26.

There is a very active discord community around the sensor watch. Come join us; https://discord.gg/Rdd9ewREaJ. I'm currently working on adding step counting support to the sensor watch pro. (Also I'd appreciate the help in getting a low power and low computation cost step counter working, which is a bit hard when your battery budget is a CR2016.)