Hacker News: pseudosudoer

New comment by pseudosudoer in "Elevators"

pseudosudoer — Fri, 31 Jul 2026 16:26:53 +0000

This is commonly referred to as the "dial-a-ride" problem, which is an optimization problem with a multi-variate cost. Back in college for my senior design project we built a multi-axis closed loop servo system which would emulate a slide guitar. The dial-a-ride problem is identical to optimizing travel for a string of notes/chords.

New comment by pseudosudoer in "Inverted Pendulum Logo"

pseudosudoer — Mon, 06 Apr 2026 19:08:02 +0000

Delivering quality web solutions is out of my realm of expertise, so if I were to hand it off the experience would probably would probably be lack-luster.

ClosedBridge is my small consulting company in the embedded space, and I'm just spitballing ideas to bring eyes to it.

New comment by pseudosudoer in "Inverted Pendulum Logo"

pseudosudoer — Fri, 27 Mar 2026 21:20:56 +0000

If you manage to move the cart to the rail limits it'll typically fall over and enter the swing up state.

With that said it's a pretty simple design, made more for the novelty of an interactive logo.

Inverted Pendulum Logo

pseudosudoer — Fri, 27 Mar 2026 13:06:35 +0000

Article URL: http://closedbridge.com

Comments URL: https://news.ycombinator.com/item?id=47542224

Points: 6

# Comments: 4

New comment by pseudosudoer in "Custom telescope mount using harmonic drives and ESP32"

pseudosudoer — Tue, 19 Aug 2025 14:49:53 +0000

I really liked OpenSCAD as a concept, but when I started designing things that had a fair bit of complexity the rendering engine really shit the bed. This was a powerful rig as well.

New comment by pseudosudoer in "3blue1brown YouTube Bitcoin video taken down as copyright violation"

pseudosudoer — Mon, 06 Jan 2025 17:26:11 +0000

Every year it becomes clearer that Idiocracy was indeed a documentary.

New comment by pseudosudoer in "Nvidia bets on robotics to drive future growth"

pseudosudoer — Wed, 01 Jan 2025 06:12:11 +0000

There are search spaces that are quite large that are used in optimal control. GPUs can be used to drastically accelerate finding a solution.

As an example, imagine you are given a height map, a 2D discrete search space overlayed in the height map, 4 legs, and robot dynamics for every configuration of the legs in their constrained workspace. Find the optimal toe placement of the 4 legs. Although a GPU isn't designed exactly to deal with this sort of problem, if it's framed as a reduction problem it still significantly out performs a multi core CPU.

New comment by pseudosudoer in "'Obelisks': New class of life has been found in human digestive system"

pseudosudoer — Mon, 30 Dec 2024 19:11:55 +0000

Any chance there is a correlation between Obelisks and autoimmune diseases?

New comment by pseudosudoer in "What Is Analog Computing?"

pseudosudoer — Wed, 07 Aug 2024 18:11:39 +0000

I actually worked for a startup that makes tiny FPAA's (Field Programmable Analog Arrays) for the low powered battery market. Their major appeal was that you could reprogram the chip to synthesize a real analog network to offload the signal processing portion of your product for a tiny fraction of the power cost.

The key thing is that analog components are influenced much more by environmental fluctuations (think temperature, pressure, and manufacturing), which impacts the "compute" of an analog network. Their novelty was that the chip can be "trimmed" to offset these impacts using floating gate MOSFETs, the same that are used in flash memory, as an analog offset. It works surprisingly well, and I suspect if they can capture the low power market we'll see a revitalization of analog compute in the embedded space. It would be really exciting to see this enter the high bandwidth control system world!

New comment by pseudosudoer in "An infinite canvas for code exploration"

pseudosudoer — Tue, 07 May 2024 17:03:49 +0000

I confused Sourcetrail and SourceGraph, didn't mean to spread misinformation on your product!

New comment by pseudosudoer in "An infinite canvas for code exploration"

pseudosudoer — Tue, 07 May 2024 17:02:12 +0000

Yes you're right, my mistake!

New comment by pseudosudoer in "An infinite canvas for code exploration"

pseudosudoer — Mon, 06 May 2024 22:38:27 +0000

Ideally this would be a standalone app (perhaps ported using electron) that I could run locally, and import codebases directly. Sourcegraph was on the right track, but eventually fizzled out unfortunately.

I would love to use a tool like this to navigate the unknown on rails!

New comment by pseudosudoer in "Terraform makes carbon neutral natural gas"

pseudosudoer — Wed, 03 Apr 2024 20:05:01 +0000

Here's their company page. Might explain the use of word press...

https://terraformindustries.com/

New comment by pseudosudoer in "First-in-human implantation of bionic device to halt Crohn's disease (2023)"

pseudosudoer — Mon, 01 Apr 2024 20:13:30 +0000

Your statements are true, but please present this information with nuance. Yes you have an increased risk of cancer, but it's a small percentage and not a guarantee. Untreated bowel disease is guaranteed to have side effects, horrible QoL, and a much higher risk of cancer than medications.

Prednisone is the one exception though, unless life is completely unlivable or you have a significant chance of death (typically from perforation) I would avoid it.

New comment by pseudosudoer in "Researchers trace a form of lupus back to a single mutation"

pseudosudoer — Sun, 14 Jan 2024 05:43:07 +0000

I wonder what implications this has for other autoimmune diseases. I personally suffer from Ulcerative Colitis, and would love to see this kind of foundational research done instead of new sets of immunomodulatory drugs.

New comment by pseudosudoer in "The secretive rise of the 'overemployed'"

pseudosudoer — Tue, 14 Nov 2023 15:33:00 +0000

I've considered a second job as well, but I'd have to skip out on my noon Jiu Jitsu classes and freedom to play Pickleball whenever I please. I'm paid well enough where the value my hobbies bring outweighs the extra income of a second job.

New comment by pseudosudoer in "Physicists create elusive particles that remember their pasts"

pseudosudoer — Tue, 12 Sep 2023 17:04:31 +0000

Once the map between entanglement and exponential parallelism is clear, quantum computing becomes a breeze /s. Seriously though, entanglement is the root of what makes quantum computing useful.

One subset of problems that are solved exponentially faster are those that intersect with tensor products. Entanglement essentially "is" a tensor product of the probabilistic state space of two qubits.

New comment by pseudosudoer in "The Nanohertz Gravitational-Wave Detection Explained"

pseudosudoer — Sun, 13 Aug 2023 20:17:52 +0000

You're essentially asking the same question after it's been answered. Space-time is the carrier that acts like a fabric, and some large cosmological mass is distorting that fabric.

The distortion of the fabric of space-time ripples throughout the entire universe at the speed of light, and spreads it's effect proportional to the inverse square related to distance.

New comment by pseudosudoer in "Show HN: Flux Copilot – Generative AI for hardware design"

pseudosudoer — Tue, 27 Jun 2023 19:27:02 +0000

Hey Matthias, I'm curious whether/how you validate copilot output suggestions. Software bugs from generative AI can at least be reasonably tested for by developers, but it's certainly much more difficult to catch subtle bugs in hardware.

New comment by pseudosudoer in "Burnout"

pseudosudoer — Sun, 07 May 2023 17:56:46 +0000

Although I didn't quit my job, having sizeable breaks between different jobs has been quite valuable. Time off between gigs feels more "free" because the expectations aren't the same when the break is finished.