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akjssdk

198 karma · joined July 9, 2018

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akjssdk··on ArXiv receives $10M for upgrades
Not sure about that, the convention is to cite however someone appears on the paper right? That way everything is consistent.
akjssdk··on PHYS771 Lecture 9: Quantum
I am not sure if this is how it is a correct representation. I believe a common approach is to do a short history of quantum in the first year, and then do a from the ground up approach in the second and third year. Depending on who teaches it, this is either starting from a particle in a box or the approach stated here. The historical story is useful, because it tells a little bit of the why.
akjssdk··on Superconductor news: What’s claimed, and how strong the evidence seems to be
I don't think the actual proposed superconductivity mechanism is the relevant part of this paper. It is much easier to prove that this is superconducting than to prove why. And in a sense it is a bit less relevant. Although developing a working theory for room temperature is also probably worth a Nobel prize, so I am willing to bet some theorists are also running to their blackboards as we speak.
akjssdk··on Walkout at global science journal over ‘unethical’ fees
The national Dutch funding agency that effectively funds all research in the Netherlands requires this. Buy considers it sufficient for you to publish in a closed journal and then deposit a copy in an open repository. The French also have a similar system I believe.
akjssdk··on Magnon-based computation could signal computing paradigm shift
To be clear, there is some dissipation with magnons, just a lot less than Joule heating. But exciting a magnon will heat up your sample, because magnons don't live forever and decay after some time. That energy has to go somewhere.
akjssdk··on PhD training is no longer fit for purpose – it needs reform now
To be fair, this is really field dependent. In the sciences this is (mostly) true, but in the humanities your output for your PhD is sometimes just your thesis. The problem is fundamentally that the PhD traject is geared towards an academic career, but there are not enough academic positions for all those PhD students, so they end up in industry. And there their skills don't really translate that well, as OP also says.
akjssdk··on I've procrastinated working on my thesis for more than a year
This works wonders, especially for collaborative documents (which a thesis should be, a collaboration between you and your supervisor/other people). A first "vomit" draft allows you to at least discuss the concepts, and it forces you to align the thoughts in your head. It is how I have written all my papers/thesis, and I cannot recommended it enough!
akjssdk··on I'm quitting my PhD
Why is no one considering that this PhD student is wrong and that his supervisor does in fact know what they are doing? Starting in a new field is hard, and it takes years to get a broad view of the field in order to understand what directions to take. As a PhD student you are not expected to be able to do this: this is why you have a supervisor who has enough experience. Maybe the supervisor does have a clear vision as to where to take the research, and the student does not yet see this?
akjssdk··on Pedal Me bans staff riders from wearing helmets for safety reasons
Cyclists are protected by law, such that even if an accident is the fault of the cyclist, the car driver is still 50% liable. This in combination with the infrastructure, which separates cyclists and cars as much as possible, makes the Netherlands very safe for cyclists.

Note that younger children still usually wear a helmet, since they are more likely to have an accident on their own (i.e. falling over).

akjssdk··on How to skate a 10k
Just to add: he has always said that after the Olympics he is retiring (at age 25). He has not confirmed it as far as I know, but he has hinted at it in interviews and also in this document. He basically took the long distances in speed skating by storm, and is now doing a massive mic drop.
akjssdk··on Zotero: Free, easy-to-use tool to collect, organize, cite, and share research
Only if you want to sync pdfs using the Zotero server does Zotero cost money. Anything else is completely free, including syncing your db (without pdf attachments). If you want to sync your pdfs you can point Zotero to a webDAV server, this has worked flawlessly for me.
akjssdk··on Ask HN: What are the best-designed things you've ever used?
This is fairly common in newish kitchens in the Netherlands too, especially if the kitchen is far away from the boiler. Sometimes even with a boiling water tap, so you don't even need a kettle anymore.
akjssdk··on Teenager on TikTok Disrupted Thousands of Scientific Studies with a Single Video
From the article "Prolific, a tool for scientists conducting behavioral research, had no screening tools in place to make sure that it delivered representative population samples to each study.". I would argue that studies from this tool were already disrupted if you are not screening your users in some way.
akjssdk··on How to properly load a dishwasher (2020)
Why is it that people are always so quick to suggest (couples) therapy? Is it so unlikely that two adults can work something out between themselves, especially if they are in a marriage? Being married is essentially figuring out these mini conflicts, so you better be good at it. That's not to say that counseling cannot help, but it always seems like such an overreaction. Also: please don't take relationship advice from random strangers :)
akjssdk··on Pint – A Python package to define, operate and manipulate physical quantities
Not by default, but Julia has various units packages which integrate fairly well with the rest of the ecosystem. Unitful.jl [1] is the most used one I believe and integrates with DifferentialEquations.jl for example. It should also work with many other things, but you might have to patch it up a bit, especially if operations change the units (such as derivatives).

[1] https://github.com/PainterQubits/Unitful.jl

akjssdk··on Collusion rings threaten the integrity of computer science research
Depending on the country, the PhD defense is more or less ceremonial. If you have made it to the defense, you can pretty much not fail anymore.
akjssdk··on When real world mapping meets Tolkien
Regarding your last point: if I remember the foreword to the 2nd edition Tolkien describes his writing process as essentially being spatially. He moves his characters from place to place, and seems to only have put in a core theme later on. This also agrees with the whole "Tolkien wrote a book so he could talk about cultures/languages/something" theme. This would also suggest that he had in his mind something of a map or layout of Middle-Earth very early on. And than there is the complicated interaction with the Silmarillion, which was developed long before the Hobbit even (1914), but also during writing of the Hobbit and TLOTR. [1] So disentangling where exactly he came up with what seems almost impossible (and something that many Tolkien scholars, including Christopher Tolkien, have spent quite some time studying!)

[1] https://en.wikipedia.org/wiki/The_Silmarillion#Development

akjssdk··on When real world mapping meets Tolkien
I think the author is also severely underestimating how early Tolkien starting working on his maps. The Hobbit (published in 1937) already came with a somewhat fleshed out map of the Misty Mountains and surroundings, and it is fair to assume that from this the remainder of Middle-Earth was fleshed out. (I cannot quickly find somewhere when he first drew a complete map of Middle-Earth, but Wikipedia notes that "The paper became soft, torn and yellowed through intensive use, and a fold down the centre had to be mended using parcel tape" [1]. So he probably knew what Middle-Earth looked like for quite some time, maybe even late 1930s?

To presume that Tolkien would have had an understanding of the then state-of-the-art theories around continental drift is a bit hopeful. In fact, plate tectonics did come to be accepted until the 50s/60s, so Tolkien could barely have known of the theory when writing LOTR and especially not when drawing the initial map.

[1] https://en.wikipedia.org/wiki/Tolkien%27s_maps#The_Lord_of_t...

akjssdk··on Prince Philip has died
I have never heard about this, do you have a link that elaborates? I love weird succession lines.
akjssdk··on Based Cooking
Yes it is a shame, because their recipes (especially from Kenji López-Alt) are really good. But if you keep one open to read from during cooking, you will see every video they have available playing in the little box.
akjssdk··on JuliaMono – a monospaced font for scientific and technical computing
Note that this is the main use case of Julia code: relatively short academic code, where more thought goes into coming up with the equations than with the code itself. For me it is not uncommon to spend a week doing the full derivativation of a formula, which is basically a one liner in code.
akjssdk··on US college enrollments are falling, except for graduate degrees
I am not sure what you are referring to, but a PhD in Europe takes 3/4 years. They are generally organised such that you are tied to a single supervisor/research group, which might be where the confusion comes from? They are by no means canned projects, at least as far I know.
akjssdk··on New academic journal only publishes 'unsurprising' research rejected by others
They charge extra to have your pictures printed in color, online everything is in color anyway. I think that is a fair practice no?
akjssdk··on Apple removes Fortnite from App Store after Epic attempts to bypass fees
Doesn't every single payment provider do this though?
akjssdk··on Andean condor can fly for 100 miles without flapping wings
Seconding his book Last Chance to See, it is a fantastic travel/nature book with all the usual Douglas Adams flare.
akjssdk··on CERN approves plans for a $23B, 62-mile long super-collider
The particles that go around radiate their energy away, which is a function of the radius of the circle. It is called synchrotron radiation and is the main limitation factor of these kind of accelerators.
akjssdk··on Next-generation solar cells pass strict international tests
Battery installations are still relatively expensive right for the capacity they offer right?
akjssdk··on Initial Impressions of WSL 2
You can run emacs on WSL and just pass the X output to windows using an X server like VcXsrv. This works pretty seamless for me, no noticeable lag or anything.
akjssdk··on How Reliable Are University Rankings?
Yes for sure, in academia the perceived ranking is quite important. But, at least in my field, ranking is decoupled from the ranking of a university and is more on a department basis. I.e., the physics department of a specific university might be well regarded internationally, even though the university itself not so much. This is of course helped by the fact that Dutch universities are all quite highly ranked.
akjssdk··on How Reliable Are University Rankings?
As a Dutch PhD student, I am not sure I agree. There is some hype around the rankings of the universities and specifically the bachelor and master tracks at a given university, but not many students really care about them. I certainly did not choose my university based on their ranking, and don't know many that did. Choice is based much more on travel distance and other factors, not on perceived quality of a university. I also would not be able to point out the best universities in the Netherlands, which says something as well.
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