HNHacker News
TopNewBestAskShowJobs

ramenbytes

243 karma · joined July 11, 2022

PhD Physics student at the University of New Mexico. Opinions my own.

https://github.com/ramenbytes

Email for "professional" stuff: hn at ferschweiler dot com

CL-USER> (list ramen bytes)

(COLLEGE PROGRAMMER)

submissionscomments
ramenbytes··on A math professor who objects to diversity statements
You might be asked to write about it, yes, though I don't recall one that insisted on it at the moment.

For example, the University of Nevada, Reno's Physics PhD application gives the following as one of the writing prompts to consider to address admissions criteria:

"Describe experiences and activities that demonstrate a commitment to diversity, equity, and inclusion."

ramenbytes··on Best Pens for 2024: Gel, Ballpoint, Rollerball, and Fountain Pens
I remember evaluating the Kaweco Al-sport when I was looking for a durable metal pen for EDC after my Metropolitan bit the dust. I think I didn't choose the Kaweco because the pocket clip for it had some issues with slipping off/not being tight enough based on some reviews. Instead a I went with a copper INK V2 from Karas that has the clip fastened to the pen by machine screws, which I was happy about since in theory I can replace the clip if it ever goes bust. I've had good luck with the company in terms of repair so far. The inner o-ring for the cap of my pen got worn down so that it no longer provided enough friction to reliable prevent the cap from unscrewing when the pen was clipped to my shirt, and the company sent me several new o-rings for free. Eventually, they made o-ring kits a regularly available product. I bought this pen with the intent that it be the last one I buy, and so far it looks like that will be the case.

Pen I'm using: https://karaskustoms.com/product/ink-v2-fountain-pen/

Little brother to above pen, currently being blown out for 1/2 the Kaweco's price: https://karaskustoms.com/product/fountain-k-v2/

ramenbytes··on Best Pens for 2024: Gel, Ballpoint, Rollerball, and Fountain Pens
I switched to a fountain pen because I heard that they required less effort to write with, and the amount of writing I was doing for my studies was starting to cause RSI issues in my hand. In that context, as a student, finding a budget-friendly pen was a concern.
ramenbytes··on Best Pens for 2024: Gel, Ballpoint, Rollerball, and Fountain Pens
Already tried this sampler set? https://www.gouletpens.com/products/notebook-sampler-package...

I think everything I tried from that set so far worked well with fountain pens, though I did like some more than others. My favorite so far was probably the Mnemosyne notebook. The Rhodia webnotebook (not in the sample pack) is fantastic too.

For physics, math, general writing, I'm using Roaring Springs buff colored engineering pads (#15 paper type). Fairly fountain-pen friendly, though not as good as the papers in the above sampler set. I haven't found fountain pen paper with an engineering grid yet though, so it's the best compromise so far. The green 200 page pads are actually pretty good for fountain pens last I tried them, however the sheets were too thin for my taste and tended to eventually curl up where my forearm rested on them. Worth mentioning that the last time I bought these pads was back in 2020 when I got a 24 pack box that's still going strong, so it's possible paper quality has changed since then.

For reference, the pen I'm using is a Karas INK V2 with a EF Bock nib. Ink is Noodler's Black.

ramenbytes··on Tom Scott: After ten years, it's time to stop making videos [video]
I definitely agree that these sorts of videos have the potential to be a poor substitute for the real thing. Sometimes I notice that I've spent all my time watching videos about stuff I'm interested in and not actually doing the stuff I'm interested in. On the flip side though, as another commenter mentioned, they have the potential to serve as motivation too. For example, when I'm learning a particular technique on guitar I'll intentionally watch or listen to performances that exemplify what I want to learn in order to remind myself of how great it'd be to play that and of why I'm training. I find it helps boost and sustain motivation. Of course it can't be the only thing I do, but when I can't practice (much) on guitar because, say, I'm eating lunch and need both hands, I can loop some Paul Gilbert or EVH performances and get fired up for the next practice session.
ramenbytes··on The Art of Electronics (2015)
Sure thing! One of the things that helps me sometimes is re-arranging things visually.

A real divider:

  Input o----vvvvv----o-------------o Output
                      |
                      |
                      Z
                      Z
                      Z
                      |
                      |
                      o
                    Ground
  
The bad one:

  Input o-------------o----vvvvv----o Output
                      |
                      |
                      Z
                      Z
                      Z
                      |
                      |
                      o
                    Ground
  
Looking at it this way, it might be a bit easier to see that in the good circuit, both resistors can be in a Kirchoff voltage loop that includes the input, while in the bad one they can't.

(Edit: it appears I don't understand linebreaks on HN, so things are gonna appear garbled until I fix it.)

(Edit 2: Fixed.)

ramenbytes··on The Art of Electronics (2015)
If you can find a ham radio fest or swap meet near you, it's possible to find a lot of different components and equipment cheap, though sometimes in less than ideal condition. Look for surplus departments at local colleges, labs, companies, etc. too. Find out where e-waste goes, and whether you can salvage from it before it gets hauled away. Lots of stuff likely gets thrown out that either still works, can be fixed, or can be used for parts. Downside is you have to plan projects around what you found instead of just buying parts after picking a project.
ramenbytes··on The Art of Electronics (2015)
Assuming you mean the one labeled "voltage divider", the problem is that it doesn't actually divide voltage because the input and output are switched. The unloaded output voltage is the same as the input voltage.
ramenbytes··on When Google Fiber abandons your city as a failed experiment (2019)
To clarify, do you mean that they just shove the fiber down an underground electrical conduit hard enough for it to make it to your house?
ramenbytes··on The Revival of Medley/Interlisp
You're not alone. When someone asks "What OS do you prefer, Windows, Linux, or Mac?" my answer is: "none". Anyhow, back to dreaming. Someday maybe...
ramenbytes··on Netflix's Scott Pilgrim Takes Off has a soundtrack with no skips
Based on the title, I thought there was some unique quality of the soundtrack where there were no pauses or abrupt starts/stops, or that it was all one take. After reading the article, I'm guessing the title means that the soundtrack doesn't have any songs you'd want to skip?
ramenbytes··on LinkedIn is laying off nearly 700 employees
You'd hope as much, but it reads very similar to other serious corporate-speak. Take the explanation for why Keysight Technologies is called Keysight Technologies:

'The name Keysight is built from two English words: key, meaning indispensable or essential, a means of access; and insight, meaning the power of seeing, having vision and perception. The name connotes seeing what others cannot, having the critical or key insight to understand and unlock the changing technology landscape.

Keysight reflects what's in our DNA, what we strive to provide to our customers - the key measurement insights engineers need to accelerate innovation and ultimately achieve success - whether they see success as being first to market, increasing their differentiation, ramping up production, or achieving lower costs of test within a rapidly changing technology landscape.

According to Ron, the name Keysight "captures the spirit of our new company - innovative, insightful, and forward-looking, with the special kind of vision to sort through the rapid technological revolutions and anticipate customers' needs so they stay one step ahead."'[0]

So I'd say all bets are off.

[0] https://www.keysight.com/blogs/keys/2018/09/25/keysight-and-...

ramenbytes··on Unlimited Kagi searches for $10 per month
When I was still on the early beta with limited searches, kagi felt like a secret weapon I pulled out when some bit of technical information was playing hard-to-get. Google/DDG can't find info on this ancient electrophoresis power supply? Oh look, kagi found a document describing these units that was written for some higher education institution that used them, and now I know they won't work for my application. Had similar things happen several times before I just started using kagi by default for those searches.
ramenbytes··on Learn AutoHotKey by stealing my scripts
You know, that's part of what's been holding me back from using it for much besides remapping CapsLock to Control. Maybe it's time to sit down and write a Lisp DSL that compiles to it.
ramenbytes··on Korea Superconductor Papers Published ‘Without Consent’
https://nitter.net/iris_igb/status/1685341730902577153#m
ramenbytes··on An introduction to metaprogramming in Ruby
Excuse me netizen, do you have a moment to talk about our Lord and Savior, Lisp?
ramenbytes··on Future ultra-precise timing links to geosynchronous satellites
In addition to the link in the sibling comment, there are also some timenuts over here: https://www.eevblog.com/forum/metrology/

It's not dedicated to just time nuts though, so you'll see voltnuts and other species too.

ramenbytes··on FET: The Friendly Efficient Transistor
Yes, with some qualifications. Below, with some edits, is what I originally wrote for the comment you replied to, before scratching it for being too wordy.

Some personally compelling reasons for myself as a guitarist:

1) With physical gear, I own the means of sound production. Less so for pedals that integrate closed computing elements into their circuits though, and even less if it has IOT crap (why??). Analog devices are generally best at this aspect.

2) Along those lines, longevity and repairability. Again this applies most strongly to analog pedals. I can keep using a well-designed pedal for decades, and keep it going with occasional repairs and maintenance. Digital modelers (including digital pedals to an extent), not so much, for a number of reasons.

3) In general, physical signal chain elements, particularly analog ones, strike me as more malleable as an end-user. I can do tweak the gain of individual stages, rework the inter-stage EQ and attenuation, etc. with a physical tube amp, and do similar things with analog pedals. Perhaps to a lesser extent with digital pedals too. I'm not aware of a modeling system with comparable flexibility, though I'd be interested in being proven wrong.

4) Some analog stuff, to my limited knowledge, is still difficult to model.

ramenbytes··on FET: The Friendly Efficient Transistor
You're right, and you generally have less control over them because of that.
ramenbytes··on FET: The Friendly Efficient Transistor
Because with physical gear I own the means of sound production.
ramenbytes··on A terrible decision on AI-made images hurts creators
Interesting...

Here is the link to the statement by the U.S Copyright Office (PDF): https://www.govinfo.gov/content/pkg/FR-2023-03-16/pdf/2023-0...

So far the most interesting part to me is this bit:

> In other cases, however, a work containing AI-generated material will also contain sufficient human authorship to support a copyright claim. For example, a human may select or arrange AI-generated material in a sufficiently creative way that ‘‘the resulting work as a whole constitutes an original work of authorship.’’ Or an artist may modify material originally generated by AI technology to such a degree that the modifications meet the standard for copyright protection. In these cases, copyright will only protect the human-authored aspects of the work, which are ‘‘independent of’’ and do ‘‘not affect’’ the copyright status of the AI-generated material itself.

In particular, that only the human-authored aspects get copyrighted. I wonder how we'll see this gamed. Load the image into GIMP, and apply a subtle color shift?

ramenbytes··on OpenAI tech gives Microsoft's Bing a boost in search battle with Google
I've been impressed with what Kagi is able to dig up for me on old and sometimes niche electronics test and measurement equipment. However, I don't think they are targeting the same set of users that early Google was. Among other things, you have to pay for Kagi.
ramenbytes··on AI is making it easier to create more noise, when all I want is good search
I'm not trying to dig up details on mid-80s Japanese ICs, usually just technical documents related to vintage test and measurement equipment. However, I've found that when duckduckgo and google failed me, kagi almost always pulled through. N<10 though, so YMMV.
ramenbytes··on A little bit of slope makes up for a lot of Y-intercept (2012)
There are two books I have on my reading list which are supposed to address this in one way or another, both by the same author. Violence of Mind and Beyond OODA, by Varg Freeborn (https://vargfreeborn.com/podcasts/). I've started reading Violence of Mind, and it's been enough to motivate some life changes and deep thinking. Have not finished yet though, the author gave an ultimatum of sorts early in the book and I haven't quite come to grips with my answer yet.

Beyond OODA is probably closer to directly answering your question, though Violence of Mind appears to deal with concrete application of "orientation" to self-defense and violent confrontations as a "good guy". I think I recall hearing in a podcast Varg did that he actually talked with one of Boyd's colleagues when putting together Beyond OODA to learn more and make sure the content was spot on, which was a big motivation for my purchase of the book as I find OODA fascinating and the concept has been very influential in my life.

There is also this article that introduced OODA to me, and it goes fairly in-depth on the "orient" section: https://www.artofmanliness.com/character/behavior/ooda-loop/

ramenbytes··on Physics of the Electric Guitar
Link is to the index page for the English translation of the digital version. The original German-language hard-copy is sadly out of print now, and included a few figures and explanations that were excluded from the digital copy. The author, Manfred Zollner, also recently released another book, Physik des Magnettonabnehmers, about guitar pickups which takes advantage of recent advances in computer simulations to better model them, but it is/was only available in a German-language hard-copy.
← PreviousPage 4 of 4