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i_am_proteus

5,243 karma · joined November 5, 2018

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i_am_proteus··on The Transformations of Fernand Braudel
An excellent starting point for Braudel's work would be Civilization and Capitalism: Vol. 1: The Structures of Everyday Life
i_am_proteus··on Niri – A scrollable-tiling Wayland compositor
You are not alone.
i_am_proteus··on MIT Study Finds AI Use Reprograms the Brain, Leading to Cognitive Decline
>These 54 participants were between the ages of 18 to 39 years old (age M = 22.9, SD = 1.69) and all recruited from the following 5 universities in greater Boston area: MIT (14F, 5M), Wellesley (18F), Harvard (1N/A, 7M, 2 Non-Binary), Tufts (5M), and Northeastern (2M) (Figure 3). 35 participants reported pursuing undergraduate studies and 14 postgraduate studies. 6 participants either finished their studies with MSc or PhD degrees, and were currently working at the universities as post-docs (2), research scientists (2), software engineers (2)

I would describe the study size and composition as a limitation, and a reason to pursue a larger and more diverse study for confirmation (or lack thereof), rather than a reason to expect an "uphill battle" for replication and so forth.

i_am_proteus··on Magic Lantern Is Back
If you want JPGs to look different, you can change them in the camera, and RAW files are just that: raw. They will vary between cameras slightly because the cameras have different sensors. Editing RAWs from 5d3 vs. 5d4 vs. 6d (my only experience) is not very different. Ultimately, the workflow that matters is a photographer capturing the image and getting the output to the studio quickly, in high quality. Event photographers often tether via ethernet or USB and the studio can post-process the RAW in minutes (or even seconds). The part of this that is most sensitive and hardest to recover from error is the photographer capturing the image, which is why consistency and usability of camera controls is so important.

IIRC none of the EOS DSLRs had focus peaking from the factory, you need Magic Lantern -- Canon didn't program it at all.

i_am_proteus··on Magic Lantern Is Back
Magic Lantern is fantastic software that makes EOS cameras even better, but I understand why manufacturers make it hard:

Camera manufacturers live and die on their reputation for making tools that deliver for the professional users of those tools. On a modern camera, the firmware and software needs to 100% Just Work and completely get out of the photographer's way, and a photographer needs to be able to grab a (camera) body out of the locker and know exactly what it's going to do for given settings.

The more cameras out there running customized firmware, the more likely someone misses a shot because "shutter priority is different on this specific 5d4" or similar.

I'm sure Canon is quietly pleased that Magic Lantern has kept up the resale value of their older bodies. I'm happy that Magic Lantern exists-- I no longer need an external intervalometer! It does make sense, though, that camera manufacturers don't deliberately ship cameras as openly-programmable computational photography tools.

i_am_proteus··on The day Return became Enter (2023)
The "ding" is a bell that is mechanically activated when the carriage gets close to the end of the writeable area (in many typewriters, this is a moveable stop to account for variable paper width).

So when one types, the bell alerts the typist to the need to return the carriage; typically you get quite a few characters after the bell, either to finish your word, or hyphenate.

Which makes it ding-slide rather than slide-ding :)

i_am_proteus··on Strange CW Keys
They all have contacts; they operate by closing a circuit.

73 ;)

i_am_proteus··on AI adoption linked to 13% decline in jobs for young U.S. workers: study
Likewise! Though Latin American engineers also tend to be some of the priciest offshore developers (along with European engineers). Excellent engineers, but there's still some churn from the friction of hiring and maintaining teams overseas.
i_am_proteus··on Bring Back the Blue-Book Exam
It's thwartable with adequate proctoring. I know about this mode because I found students doing it, and the students in question endured substantial academic consequences.

Large lectures have hundreds of students, and to properly proctor an exam for one of these classes, one needs dozens of proctors.

It can be done, but observe: for most faculty, maintaining the integrity of their course does not aid them on the path to tenure/advancement.

i_am_proteus··on Bring Back the Blue-Book Exam
People bring in second phones: one to have confiscated, one to use on the exam.

A common mode I have seen is phone in lap, front-facing camera ingests an exam page hung over the edge of the desk. Student then flips the page and looks down for the answer.

i_am_proteus··on Show HN: Doxx – Terminal .docx viewer inspired by Glow
I have noticed many nice projects built on Rust + ratatui - many thanks to the creators and mantainers.
i_am_proteus··on Nuvistor Valves
Thank you for your comment. I must admit that I am baffled by it. Is this a series of general observations on the function of the Twin? It does not seem to respond to the prior discourse about 6L6GC power tubes being run above design maximum plate voltage.

Certainly it is very wonderful to observe the relative simplicity of tube amplifier schematics, which rely on a mere handful of passives for bias and tonestack, compared to solid-state amplifiers, that require complicated arrangements to provide negative feedback necessary to stabilize the transistors.

i_am_proteus··on Derivatives, Gradients, Jacobians and Hessians
Without looking up the answer (because someone has already computed this for you), how would you find the highest geographic point (highest elevation) in your country?
i_am_proteus··on Nuvistor Valves
Guitar amps that routinely blow tubes usually operate past maximum rated plate voltage. As an example, the Fender Twin Reverb[0] runs 6L6GCs[1] at 460V plate voltage, above the stated class-AB pentode max of 450V.

I've used the same tubes at a very reasonable 325V in a SET (actually single-ended pentode) hifi amp (built myself).

TV tubes would often burn out because of transients from switching channels.

[0]https://schematicheaven.net/fenderamps/twin_reverb_ab763_sch...

[1]https://frank.pocnet.net/sheets/127/6/6L6GC.pdf

i_am_proteus··on Blue-collar jobs are gaining popularity as AI threatens office work
I wonder who will be held at fault when the low-paid in-person troubleshooter discovers 15kV with his fingers (I do not wonder who will be killed) while his lock opens the wrong breaker.

The business is not broken and does not need "fixing."

i_am_proteus··on Volkswagen locks horsepower behind paid subscription
Same thing on the current F-800 and F-900: identical engine blocks, different power outputs, F-900 comes with taller suspension, spoked wheels, and so forth.

I believe part of the rationale is that Euro A2 licenses permit a "restrictor kit" to reduce motor power below 47 hp, but only if maximum horsepower is less than 94 hp (double the limit). One can buy an F-800 with a restrictor, and then remove the restrictor once one has obtained the upgraded license.

Now, looking at the motor torque and power curves, most of that extra power comes in the high RPMs. In practical riding of BMW twins, I find that I rarely place the motor into the high RPMs, because the torque curve is nice and flat and there's plenty of pull in the low range :)

i_am_proteus··on Kodak has no plans to cease, go out of business, or file for bankruptcy
If you're interested, hunt around for an EOS-1 or 1N - it's a 35mm film camera with pretty fast autofocus that can use contemporary Canon EF-mount lenses. (Canon still sells the cameras and lenses, although they're being phased out in favor of RF). Load Portra 400 and shoot in good light, and you might be surprised.
i_am_proteus··on Kodak has no plans to cease, go out of business, or file for bankruptcy
Perhaps not so surprising: Fuji was producing excellent film cameras and lenses in the 1980s and 1990s, whereas Kodak was not.
i_am_proteus··on Kodak says it might have to cease operations [updated]
Fujifilm recognized that they were a chemistry company and partially pivoted to cosmetics.
i_am_proteus··on Car has more than 1.2M km on it – and it's still going strong
I recall a Greek 240D that had exceeded 4M kM (i.e. 4 GM). Regular motor and transmission rebuilds at intervals that would shame a contemporary dealer's service department.
i_am_proteus··on The dead need right to delete their data so they can't be AI-ified, lawyer says
I suspect that in the near future, Meta will deploy advertisements where AI-generated images of persons who resemble, but are not identical to, an individual's friends and acquaintances are shown enjoying sponsored products.
i_am_proteus··on US to rewrite its past national climate reports
Kodak in the early 2010s, maybe?

Eastman Kodak (the spun-off film business) in the 2020s has been more or less stable. They even brought a discontinued film (E100) back. Production and pricing are now in line with the limited demand from film studios and hobbyists.

i_am_proteus··on Show HN: Stasher – Burn-after-read secrets from the CLI, no server, no trust
Why use this instead of GPG?
i_am_proteus··on Show HN: Stasher – Burn-after-read secrets from the CLI, no server, no trust
Would you please elaborate on how "the releases are signed" helps establish trust in the context of your anonymous developer account?
i_am_proteus··on Ultra-processed foods make up more than 60% of us kids' diets
Gentle reminder that while the US is somewhat more overweight than most of Europe, most of Europe is still pretty overweight!

72% overweight rate for US adults, 45-60% for most European countries.

https://genderdata.worldbank.org/en/indicator/sh-sta-owad-zs...

i_am_proteus··on I tried to replace myself with ChatGPT in my English class
I give university courses in United States. Many of us have certainly down-weighted homework substantially.

However, when some colleagues tried homework as 0% for introductory courses, most students omitted the homework, then failed the exams. Modern students seem to require explicit incentive to work, otherwise the usual: scrolling upon flat screen devices, hedonism, and so forth.

In this case, who has failed: the student, or the professor?

i_am_proteus··on Introduction to Computer Music
Another fine text on this subject I can recommend (at a somewhat higher level, and not provided for free) is The Computer Music Tutorial:

https://mitpress.mit.edu/9780262044912/the-computer-music-tu...

I suggest having some kind of sequencer and synthesizers (one subtractive, one FM) available to play with while reading. Free VSTs in the free Reaper DAW are a fine starting point.

i_am_proteus··on A Quantum Gravimeter for GPS Backup
Precisely.
i_am_proteus··on A Quantum Gravimeter for GPS Backup
Indeed.

>The system deduces the strength of Earth’s gravity in every given point of the journey from the motion of the atoms illuminated by laser beams inside a vacuum chamber and compares that data with gravity maps compiled from satellite measurements.

i_am_proteus··on Study mode
>Now, everyone basically has a personal TA, ready to go at all hours of the day.

And that's a bad thing. Nothing can replace the work in learning, the moments where you don't understand it and have to think until it hurts and until you understand. Anything that bypasses this (including, for uni students, leaning too heavily on generous TAs) results in a kind of learning theatre, where the student thinks they've developed an understanding, but hasn't.

Experienced learners already have the discipline to use LLMs without asking too much of them, the same way they learned not to look up the answer in the back of the textbook until arriving at their own solution.

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