Hacker News: picture

New comment by picture in "A successful Japanese trial of a ramjet engine designed for Mach‑5 aircraft"

picture — Mon, 25 May 2026 20:56:05 +0000

From my experience with working for defense/aerospace companies as well as civilian b2b ones in the US, the general situation is that defense/aero companies pay less but demands less of a grind. People usually take the lower pay (usually 70% of equivalent role in commercial sector) for the better culture

ABM-101

picture — Fri, 22 May 2026 21:16:04 +0000

Article URL: https://therestlesstechnophile.com/2019/11/08/abm-101/

Comments URL: https://news.ycombinator.com/item?id=48241781

Points: 4

# Comments: 0

Sony A7R VI

picture — Wed, 13 May 2026 17:15:47 +0000

Article URL: https://www.dpreview.com/reviews/sony-a7r-vi-review

Comments URL: https://news.ycombinator.com/item?id=48124722

Points: 3

# Comments: 0

HP 3585A spectrum analyzer teardown

picture — Sun, 03 May 2026 06:53:06 +0000

Article URL: http://7400.me/2026/04/30/HP3585A/

Comments URL: https://news.ycombinator.com/item?id=47994120

Points: 3

# Comments: 0

New comment by picture in "Why does it take so long to release black fan versions?"

picture — Sat, 02 May 2026 17:33:53 +0000

Yes you provide a great example of binning and market separation. Though I think in this case there's some limiting factors that make it infeasible to bin these fancy Noctua fan rotors including: 1) tooling have limited lifetime and will get sloppier and worse yields as time goes on. It's inefficient to use precious cycles of a precise tool and die on producing lower grade parts. 2) the material itself is likely more expensive than what industrial/lower grade use cases require. Why use reject Noctua when you can get regular crappy plastic for 1/500th the cost? 3) I expect Noctua stuff to be a much lower volume than lower cost/quality vendors so the volume of Noctua rejects is likely too low for a company to dedicate a product line using it. 4) brand/marketing reasons

Another obvious use case of binning is for microchips where the same die can be "wounded" to create multiple product variants that target different market segments, and also yield improvement from being able to isolate and disable an area of the die that are defective. However improving the manufacturability and yield itself is still fundamentally important

New comment by picture in "Ask HN: Who is hiring? (May 2026)"

picture — Fri, 01 May 2026 17:01:34 +0000

Are you thinking of futanari?

New comment by picture in "Fast16: High-precision software sabotage 5 years before Stuxnet"

picture — Mon, 27 Apr 2026 22:15:08 +0000

In pedantic tradition, I would like to gently remind you that there should be a space between a number and its unit, according to SI standard/NIST.

New comment by picture in "Just 'English with Hanzi'"

picture — Sun, 05 Apr 2026 17:53:13 +0000

> Traditional Chinese relies on context: “Rain heavy, not go”, “雨大，不去了”.

> Modern Chinese demands explicit logic: “Because the rain is heavy, therefore I will not go.””因为雨下得很大，所以我决定不去了。”

Interestingly the "traditional grammar" is much more conversational and natural, while the latter is expected for modern written work.

New comment by picture in "Just 'English with Hanzi'"

picture — Sun, 05 Apr 2026 17:51:41 +0000

Probably true. Though as someone who can read both English and Chinese, I thought the translations in the article does a good job of representing the traditional vs modern grammar styles. Not sure what more explanation would be necessary

New comment by picture in "Hold on to Your Hardware"

picture — Fri, 27 Mar 2026 11:11:53 +0000

It seems like you largely agree with the article - people shall own nothing and be happy. Perhaps the artificially induced supply crunch could go on indefinitely.

Also, I wonder how many of us, even here on HN, have the ability to spend that amount of money on computer for personal use. Frankly I wouldn't even know what to do with all the RAM - should I just ramdisk every program I use and every digital thing I made in the last five years?

Anyhow, I suppose for the folks who can't afford hardware (perhaps by design), one ought to own nothing and be happy.

Radar Image Formation Simulator

picture — Wed, 25 Mar 2026 17:03:22 +0000

Article URL: https://hforsten.com/sar-bp-sim.html

Comments URL: https://news.ycombinator.com/item?id=47520134

Points: 1

# Comments: 0

New comment by picture in "Student beauty and grades under in-person and remote teaching"

picture — Mon, 23 Mar 2026 12:43:29 +0000

China has made for-profit extracurricular tutoring illegal since 2021. [1] Of course there can be under the table operations and discussion to be had about regionally biased gaokao difficulty, but I think it's worth recognizing gaokao being a real chance for upward class mobility, hence why it is so competitive.

[1] https://en.wikipedia.org/wiki/Double_Reduction_Policy

New comment by picture in "Iran launched unsuccessful attack on UK's Diego Garcia"

picture — Sat, 21 Mar 2026 17:38:36 +0000

How do you know their intentions?

It's also a bit unreasonable to launch live munitions that have some 90% probability of being intercepted by a given system on a good day, while intending for "just a warning"

ESP32-P4 Teardown

picture — Tue, 17 Feb 2026 03:43:00 +0000

Article URL: http://electronupdate.blogspot.com/2026/02/espressif-esp32-p4-tear-down.html

Comments URL: https://news.ycombinator.com/item?id=47043454

Points: 3

# Comments: 0

New comment by picture in "Ireland rolls out basic income scheme for artists"

picture — Thu, 12 Feb 2026 12:51:23 +0000

There are many things that are valuable to people, but which they would rather not pay for. They include public goods and externalities, like infrastructure and education and a reasonable amount of military. It makes a lot of sense that people would rather enjoy art for free if they had the option, and since the majority of art experience can be easily duplicated and transmitted, why pay for it yourself? There is also another benefit of art stimulating further intellectual and creative development of a society, perhaps yielding second order benefits that are hard to quantify. Thus overall, it can make a lot of sense for government to pay for art as a society.

New comment by picture in "Converting a $3.88 analog clock from Walmart into a ESP8266-based Wi-Fi clock"

picture — Mon, 09 Feb 2026 19:47:23 +0000

The escapement is "synchronous" in that the motion is controlled by the number of pulses applied to the motor over time rather than the duration/width of each pulse. The pulsetime constant is only to accommodate mechanical/analog differences with the driving circuitry, from what I understand. https://en.wikipedia.org/wiki/Lavet-type_stepping_motor