Hacker News: p1mrx

New comment by p1mrx in "Show HN: Made a little Artemis II tracker"

p1mrx — Fri, 03 Apr 2026 02:45:21 +0000

Here's the official one, presumably with correct data: https://www.nasa.gov/missions/artemis-ii/arow/

New comment by p1mrx in "Artemis II Launch Day Updates"

p1mrx — Thu, 02 Apr 2026 03:46:10 +0000

According to general relativity, you (and the ground) are accelerating at 1g, and feel weight because your inertia resists that acceleration. If you jump off a cliff, you'll stop accelerating for a bit, until the ground hits you.

Edit to reply:

> I am standing on the ground. I feel 1G acceleration. My speed is not changing. How much am I accelerating?

You are accelerating at 1g through curved spacetime. Newtonian "speed" behaves strangely in curved spacetime.

New comment by p1mrx in "Axios compromised on NPM – Malicious versions drop remote access trojan"

p1mrx — Tue, 31 Mar 2026 04:05:21 +0000

Stop trying to make Fetch happen.

New comment by p1mrx in "xAI joins SpaceX"

p1mrx — Tue, 03 Feb 2026 00:33:53 +0000

What if they use heat pumps to raise the temperature? Heat rejection is proportional to T^4.

New comment by p1mrx in "Defeating a 40-year-old copy protection dongle"

p1mrx — Mon, 02 Feb 2026 05:04:05 +0000

When I was 10 or so, I "cracked" Slam! Air Hockey for Windows 3.1 by opening the exe in EDIT.COM and replacing some random binary garbage with spaces. After a few attempts, I managed to bypass the shareware dialog but also introduced some weird bugs that I don't recall the details of.

New comment by p1mrx in "We have ipinfo at home or how to geolocate IPs in your CLI using latency"

p1mrx — Sat, 31 Jan 2026 14:38:45 +0000

Have you seen excessive bufferbloat on a DOCSIS 3.1 modem?

New comment by p1mrx in "The engineer who invented the Mars rover suspension in his garage [video]"

p1mrx — Sat, 31 Jan 2026 10:26:15 +0000

https://en.wikipedia.org/wiki/Rocker-bogie

AI-assisted project idea: recreate that animation as code, and then include the differential gear.

Edit: Someone already made a 3D animation: https://m.youtube.com/watch?v=hO8DbfE7hJw

New comment by p1mrx in "Much of the World Facing 'Water Bankruptcy,' U.N. Report Warns"

p1mrx — Tue, 20 Jan 2026 21:19:22 +0000

Human bodies are a trivial fraction of the fresh water on Earth. That makes about as much sense as stealing batteries to run the power grid.

New comment by p1mrx in "Spherical Snake"

p1mrx — Wed, 07 Jan 2026 01:14:19 +0000

Reminds me of Uncle Worm, among the better TI-83+ games. It's 2D, but the snake is curvy:

https://www.ticalc.org/archives/files/fileinfo/96/9683.html

New comment by p1mrx in "Donut Lab’s all-solid-state battery delivers 400 Wh/kg of energy density"

p1mrx — Tue, 06 Jan 2026 00:14:12 +0000

If this is true, it's possible that the technology is from Nordic Nano. That would at least explain how a motor/software company could pull a battery out of thin air:

https://www.donutlab.com/nordic-nano-investment/

Their chief scientist is working on solar-powered hydrogen production, which seems fairly unrelated to solid state batteries:

https://www.nordicnano.co/chief-scientist-bela-bhuskute-will...

Though TiO2 nanoparticles appear to be relevant to battery research in general:

https://pubs.acs.org/doi/10.1021/acsaem.3c02304

New comment by p1mrx in "2025 was a disaster for Windows 11"

p1mrx — Wed, 31 Dec 2025 17:57:00 +0000

Windows 11 isn't too bad after running Win11Debloat, but I get quite annoyed when an update shows "You're 100% there" for more than a second. 100% means done, why aren't you done yet?

When I was working on a deployment dashboard, I made it show ">0%" or "<100%" near the endpoints, to avoid misleading rounding.

New comment by p1mrx in "Testing shows automotive glassbreakers can't break modern automotive glass"

p1mrx — Sat, 29 Nov 2025 17:49:21 +0000

https://en.wikipedia.org/wiki/Source_(game_engine)

New comment by p1mrx in "DIY NAS: 2026 Edition"

p1mrx — Thu, 27 Nov 2025 05:37:33 +0000

I recently got a used QNAP TS-131P for cheap, that holds one 3.5" drive for offsite backup at a friend's house. It's compact and runs off a common 12V 3A power supply.

There is no third-party firmware available, but at least it runs Linux, so I wrote an autorun.sh script that kills 99% of the processes and phones home using ssh+rsync instead of depending on QNAP's cloud: https://github.com/pmarks-net/qnap-minlin

New comment by p1mrx in "Investors expect AI use to soar. That's not happening"

p1mrx — Wed, 26 Nov 2025 18:39:37 +0000

> busybox wget -U $x -O 1.htm $y

There's no way that could work. $x expands to multiple arguments.

New comment by p1mrx in "Show HN: KiDoom – Running DOOM on PCB Traces"

p1mrx — Wed, 26 Nov 2025 16:43:14 +0000

That's a potato-quality gif, not a video.

New comment by p1mrx in "Google's new 'Aluminium OS' project brings Android to PC"

p1mrx — Mon, 24 Nov 2025 19:48:05 +0000

The name makes sense because Aluminium has an -ium suffix like Chromium. There's also no reason for the project name to agree with the US pronunciation of the element.

New comment by p1mrx in "Hard drives on backorder for two years as AI data centers trigger HDD shortage"

p1mrx — Wed, 12 Nov 2025 21:21:21 +0000

Why rewrite the same 1MB chunk, instead of making new random chunks?

Redundant data at least opens the possibility that the drive could deduplicate.

New comment by p1mrx in "Enjoy CarPlay While You Still Can"

p1mrx — Mon, 03 Nov 2025 18:48:50 +0000

So in order to use a Level 1/2 NACS charger, you have to plug into the J1772 port via an adapter, instead of the NACS port. Wow, lazy engineering at its finest:

https://insideevs.com/news/762582/nissan-leaf-j1772-nacs-slo...

New comment by p1mrx in "A theoretical way to circumvent Android developer verification"

p1mrx — Fri, 31 Oct 2025 22:11:44 +0000

I suggested this a couple months ago: https://news.ycombinator.com/item?id=45084296

Android may ultimately win the arms race, but if they want to be evil, we should make their task as tedious as possible.

New comment by p1mrx in "HTTPS by default"

p1mrx — Tue, 28 Oct 2025 18:44:33 +0000

http://http.rip/ is useful for testing this sort of thing. I used to test with http://neverssl.com/ until they added HTTPS for some reason.