Hacker News: polishdude20

New comment by polishdude20 in "The growing vigilante movement to knock out Flock surveillance cameras"

polishdude20 — Sat, 25 Jul 2026 20:29:15 +0000

Yeah speech is the first way the populace indicates to the ruling what they want.

Physical action is inevitable if the speech isn't listened to.

New comment by polishdude20 in "Ask HN: What Are You Working On? (July 2026)"

polishdude20 — Mon, 13 Jul 2026 20:13:04 +0000

I'm working in building an ultrasound system to see inside of myself.

So far I've got the analog front end manufactured and sitting on my desk able to stream 40Msps of data to my computer.

I bought some used ebay convex medical probes with like 360 connections and have started to reverse engineer them.

There's a lot of FPGA work involved and ive got AI helping me out. It's surprisingly been really good at FPGA programming.

New comment by polishdude20 in "We Know Simple Fluids Can Flow. Turns Out, Some Can Fracture."

polishdude20 — Sat, 11 Jul 2026 19:29:41 +0000

Kids that grew up in the 90's and 2000's know this. Anyone ever bought that slime stuff? You pull it slow, it flows, pull it fast, in fractures.

New comment by polishdude20 in "The family keeping watch over a 52-year-old pot of soup"

polishdude20 — Tue, 07 Jul 2026 15:07:32 +0000

Why concentrated?

New comment by polishdude20 in "A Special Wireless-Free Nikon Camera Is Publicly Available for the First Time"

polishdude20 — Fri, 03 Jul 2026 08:51:07 +0000

Traces can be antennas

New comment by polishdude20 in "We can still stop California's 3D printer surveillance scheme"

polishdude20 — Sat, 27 Jun 2026 06:25:35 +0000

I'm surprised I haven't seen any makers on the popular YouTube channels I watch say anything about this.

Where's William Osman, Adam Savage etc talking about this?

New comment by polishdude20 in "Whole cross-sectional human ultrasound tomography"

polishdude20 — Tue, 23 Jun 2026 04:14:21 +0000

Neat! I didn't know you could use an SDR for that!

New comment by polishdude20 in "Whole cross-sectional human ultrasound tomography"

polishdude20 — Tue, 23 Jun 2026 03:47:10 +0000

Not yet. Once I've got it working haha.

For the probe, you can find loads of them on ebay.

For the electronics. Digikey, JLCPCB etc.

New comment by polishdude20 in "Whole cross-sectional human ultrasound tomography"

polishdude20 — Sun, 21 Jun 2026 07:36:29 +0000

This is cool! I've got a personal project in the works to build an ultrasound machine just to learn how it works. There's a lot of electronics design, PCB design, FPGA work etc that in learning. The probes themselves are used medical grade ones from ebay.

The hard part is that there can be over hundreds of piezo elements each needing to receive on their own channel. That means lots of expensive ADCs. Not to mention either having many pulser circuits or muxing a pulser to many elements.

New comment by polishdude20 in "Museum of Pocket Calculating Devices"

polishdude20 — Fri, 22 May 2026 20:30:42 +0000

One category of calculator they're missing is "Food Based Calculator". Imagined the front panel of a calculator being made out of a Graham cracker.

New comment by polishdude20 in "Human brain changes after first psilocybin use"

polishdude20 — Wed, 06 May 2026 02:46:01 +0000

5 grams of mushrooms is not the same as 5 grams of psilocybin. When taking about mg, I think they mean psilocybin. When talking about grams, it's mushrooms

New comment by polishdude20 in "Show HN: State of the Art of Coding Models, According to Hacker News Commenters"

polishdude20 — Mon, 04 May 2026 02:34:33 +0000

Is there a good cloud provider for these open models that I can easily swap my Claude library in python to?

New comment by polishdude20 in "Solar Eclipse Map"

polishdude20 — Fri, 01 May 2026 15:55:56 +0000

This is crazy slow on mobile.

New comment by polishdude20 in "For the first time in history, more Americans are moving to EU than vice versa"

polishdude20 — Thu, 30 Apr 2026 15:56:18 +0000

I mean, the studies are still out in the world and homeless. Moving to another country doesn't change that.

New comment by polishdude20 in "Can you stop beans from making you gassy?"

polishdude20 — Sat, 25 Apr 2026 22:26:36 +0000

If I ly excessive gas didn't cause crazy painful cramps for me.

New comment by polishdude20 in "Can you stop beans from making you gassy?"

polishdude20 — Sat, 25 Apr 2026 22:26:05 +0000

Yes.

New comment by polishdude20 in "An update on recent Claude Code quality reports"

polishdude20 — Thu, 23 Apr 2026 22:51:00 +0000

Bruce here from the Twitter team.

I got finally fired.

New comment by polishdude20 in "Molotov cocktail is hurled at home of Sam Altman"

polishdude20 — Sat, 11 Apr 2026 00:16:46 +0000

Its less about "crimes" and more about a moral or ethical boundary that people feel is being crossed.

New comment by polishdude20 in "Ask HN: Any interesting niche hobbies?"

polishdude20 — Thu, 09 Apr 2026 05:47:56 +0000

What is structured water?

New comment by polishdude20 in "Google releases Gemma 4 open models"

polishdude20 — Fri, 03 Apr 2026 04:52:43 +0000

Yeah looks like the cli also retries as well. I was able to get it working using a higher timeout.