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nograpes

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Okay, so I don't really understand what you're saying, but let me take a stab at it.

Somebody named GI Gurdjieff wrote a book "Meetings with Remarkable Men" in 1923, and in that book there was a kind of story in the introduction. That story attempted to distnguish between two different ways of life: a Western, "knowing" way and an Eastern "being" way.

The story basically involves a young sparrow eating cork which he thought was leftover thrown-out porridge and gets sick. Then an old sparrow says that in the old days, whenever a horse pooped you could always be sure to get undigested oats from it, but now when a car lets anything out, there is nothing to be had.

I guess the symbolism is that Gurdjieff was saying that the modern culture is deceptive in the sense that the "new" cork is not the same as the "old" porridge. So modern (Western) culture is poison, old (Eastern) culture provides sustenance.

And the connection to the posted article is that the "cork" is like the textbook definitions that Feynman described, while the "porridge" is like "true understanding/incorporation" of knowledge.

Is that what you were getting at?

Fourier Transforms 8 months ago

The paper says:

Joseph Fourier (1768–1830) was attracted by the problem of heat diffusion because he wanted to find the ideal (soil) depth to build his cellar so that the wine remained stored at the perfect temperature in the course of a year. He then attempted to understand how the heat would spread across the surface (for a rich Fourier’s biography, we refer to https://mathshistory.st-andrews.ac.uk/Biographies/Fourier/)

But the biography says nothing about wine or cellars. I think the "wine cellar problem" is a kind of textbook application of his work, but I couldn't find any evidence that this was Fourier's motivating problem.

Fourier Transforms 8 months ago

I appreciate that others may not have got much out of this, but let me say that as someone who knows about statistical modeling, but has no physics training, this made Fourier transforms very clear.

There was another comment that referred to why we use this orthonormal basis versus another, and I think to appreciate the full reason of why this was done in the first place is important. But this presentation is a very good introduction for someone with my particular training.

In the full text, they did not appear to study the false positive and false negative rates. Their references to "sensitivity" were referring to the fact that they could detect even very small concentrations of the biomarker.

This is reasonable for this kind of study. I would expect a false negative / false positive rates in a study on the commercial device.

I was very surprised by your comment and by the article you linked that the name Aditya cannot be represented in Unicode. I think it can be represented: আদিত্য.

I am not a Bengali-speaker, but I am familiar with the class of scripts to which the Bengali script belongs, abugidas. These scripts assume a vowel following every consonant. When two consonants occur one after the other in a word (a consonant cluster), this must be represented specially, because if you just wrote (consonant, consonant) it would be pronounced (consonant, inherent vowel, consonant).

The "ty" in Aditya is one such consonant cluster. The way this cluster is written is ত্য. This is represented as three code points (I think I am messing up the proper terms), one for the "t", one to "join", and one for "y".

Some people think of the special shape that the final "y" as a separate character on its own. In fact, it has it's own name (ya-phalā). I can understand why it would be confusing to see that the ya-phalā can't be typed as its own single character (" ্য"), but it really has to do with a difference in how the input is is implemented and how the person thinks about their own language.

In fact, on the unicode.org site, typing this very character is part of the FAQ for Bengali: https://unicode.org/faq/bengali.html#6

I also had these in my elementary school in Sault Ste. Marie. Mine were also used for games only, never programming.

I remember a game where you played the role of a colonial farmer in Canada and you got to decide what to plant every season. It always stuck with me because there was a bug that didn't allow you to skip one section.

A good way to address your point would be to compare the situation to Canada.

In the province of Quebec, where we have a highly vaccinated population, the intensive care units (ICUs) in all hospitals will be full within two weeks, if the rate of transmission and hospitalization continue this way. Demand greatly outstrips supply.

In Canada, the financial incentives for hospitalization and discharge are very different. Physicians get paid by a complex mix of hourly pay in addition to a fee-for-service schedule, both paid by the government. Hospitals get paid by the type of patient they admit, and their length of stay, but not always in a straightforward way.

In Canada, because of the remuneration system, physicians are the most influential decision-makers in deciding who gets to use the ICU. Roughly, no one doesn't get admitted "because they can't pay", and no one gets admitted "because they have money" .

Since hospitals are overwhelmed in Quebec, physician's incentive would be to discharge patients rather than admit. Their hourly wage wouldn't rise if they got more patients. Indeed, there is some evidence that as ICU capacity drops, physicians start discharging patients from the ICU earlier.

I should be fair to physicians in Quebec: their behaviour reflects a deep concern about the public health emergency rather than their financial gain.

I believe that, in Canada, all hospitalized patients in the ICU really need to be there.

Source: I have been studying hospitalizations due to COVID-19 illness in Quebec, Canada, and providing forecasts to the local government since the start of the pandemic.

Can anyone help me understand why gears with prime numbers of teeth would not be mechanizable?

For Venus the original designer faced a dilemma: the known period relation (5, 8) was very inaccurate, whereas the accurate (720, 1151) was not mechanizable because 1151 is a prime number, requiring a gear with 1151 teeth.

I thought that gears with prime numbers of teeth would be advantageous because it would spread the wear evenly across the gear that it contacted.

There is a command-line program called "file" that attempts to determine the file type (format). It uses a series of known formats and returns the first matching one. I have found it useful to reverse engineer proprietary formats.

Dostoevsky in Love 6 years ago

His marriages really were disastrous, and his second wife really did say that. She (and he) even really might have felt that way, despite the immense problems in their relationship.

Just to give you a sense of the problems in their famous relationship, Dostoevsky was once lost all of her belongings while gambling.

If you're interested further, Joseph Frank's five volume biography of Dostoevsky is a masterpiece in itself, and would give you a sense of how difficult, but also how strongly emotional their relationship was.

In case anyone else was curious, the regular expression used is:

vulnpatterns = re.compile("(?i)(denial of service |\bXX E\b|remote code execution|\bopen redirect|OSVDB|\bvuln|\bCVE\b |\bXSS\b|\bReDoS\b|\bNVD\b|malicious|x−frame−options|attack|cross site |exploit|malicious|directory traversal |\bRCE\b|\bdos\b|\bXSRF \b|\bXSS\b|clickjack|session.fixation|hijack|\badvisory|\binsecure |security |\bcross−origin\b|unauthori[z|s]ed |infinite loop)")

I think the English translations of the Hindi and the Bulgarian are mixed up. The Hindi should be "Their destination was secret", and the Bulgarian should be "Nobody knew where they went". Also, the Devnagari script is not rendered properly; the diacritical marks should be directly over (or under) the related character, and conjunct characters are not "squished" together.

In North Ontario, Canada, and in some parts of the East coast, many speakers use the words "up" and "down" to refer to elevation rather than direction. So you would say "I'm going up to the store" only if the store was higher in elevation than where you were currently standing, even slightly.

I grew up in North Ontario, but my parents were not native English speakers, and it was only in my late teens that most of my friends (who had native English speaker parents) were using the terms this way. I used "up" and "down" interchangeably.

What amazed me is that this implied an intrinsic awareness of elevation, which I didn't have; everybody else always knew if your house was higher than their house.

In some cases, the up/down distinction was used in place of left and right. In fact, I learned about this distinction sitting in a car at an intersection and getting the directions "just go up the road", as if that was totally unambiguous.

I am the same way. Sometimes, when I hear someone get excited/interested about something I know a lot about, I try and shut up and just listen to them talk about it. It is really a great experience.

In some senses, I share your distaste for Word. But, honestly, after having written my dissertation in LaTeX, I must say that it was a terrible experience.

I really wanted to love LaTeX. In the worst possible way. I wanted to sneer at people who used Word, looking down my nose and show them how reproducible research was really done. How much more efficient and beautiful my work would be using this software. I wanted to venerate Knuth and this beautiful example of open source software.

It took me years before I had to admit to myself how terrible it was. I remember seeing a post on HN about how LaTeX was a cargo cult for philosophy majors (the analogy being that they were using the tools of a technical discipline without a clear purpose). For me at least, a better analogy would be an abusive relationship. I would tell my labmates about how great it was, while it was obvious that I was spending hours on getting the most trivial configuration correct.

I am truly glad that some people have a good experience with LaTeX. I just wanted to say that I didn't.