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yagyu

202 karma · joined September 22, 2014

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yagyu··on Ask HN: Do you write code on the train? What's your setup?
I work as a theoretical physicist, and I second this. Not only for code but mathematics and other chain-of-logic kind of work. Also not limited to train, but to doing dishes or other routine activities where the mind can decouple. It does happen though that I get stuck brushing my teeth for 15 minutes lost in thought.
yagyu··on Danish numbers
I'd say watching the full 4:17 is worth your time https://youtu.be/xpj2x5s7DkM

Note, this is a parody aired by Norwegian TV, hilarious to anyone who tried learning Danish at least;)

Edit: on the same theme, how to pronounce any Danish word https://pbs.twimg.com/media/DAAkBMeXoAAzpZV?format=jpg

yagyu··on My night at the museum
Tldr; The creator of curl awarded the Polhem prize, arguably the most prestigious award for technical innovation in Sweden.

The prize includes a medal from the king, a healthy chunk of cash and minor fame.

Congratulations Daniel! And good on the committee for recognizing solid open source work.

yagyu··on TriggerHappy, Autonomous, and Disobedient: Nordbat and Mission Command in Bosnia
This trust is a result of intentional training towards enabling everyone down to private to know when to make a decision and when to bother chain of command. It's not only training of management, it's more like a culture.

I guess this post in part has some traction with hn because mission command seems like a wonderful management technique. Just let the people who knows best and have first hand information make efficient decisions, fast, right? But it actually takes good people and a lot of training to work in practice. On every level there has to be a "feeling" of what's reasonable. And management, in turn, must learn when to step back, and maybe more importantly not punish afterwards when equipped with hindsight.

(Served two years in swedish army, too young for Bosnia myself but couple of my officers were in nordbat2)

yagyu··on Use pew, not virtualenvwrapper, for Python virtualenvs
I still use vex and am very happy with that

https://pypi.python.org/pypi/vex

https://news.ycombinator.com/item?id=7987259

yagyu··on NASA Graphics Standards Manual
Vaguely related, the technical writing style manual from NASA: http://hdl.handle.net/2060/19900017394

It's of course opinionated, but for anyone who is not an opinionated pro themselves, it's a great resource to learn concise, precise, and readable technical communication. (imho, of course)

yagyu··on Local Rails Development with Docker and Docker Compose
Here's a minimal template for local dev in Python, flask, psql if anyone looked for one:

https://github.com/jeinarsson/app-template

yagyu··on The New Firefox and Ridiculous Numbers of Tabs
Long time user of Tree Style Tabs. Works great for me. https://addons.mozilla.org/en-US/firefox/addon/tree-style-ta...
yagyu··on I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA
Thanks for your time!
yagyu··on I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA
Thanks for your reply, that's encouraging. Follow up question:

I can see how the points

- Evidence of your original scientific, scholarly, artistic, athletic, or business-related contributions of major significance to the field

- Evidence of your authorship of scholarly articles in professional or major trade publications or other major media

are fairly easy to fulfill. Which one would you attack as the third?

yagyu··on I'm Peter Roberts, immigration attorney who does work for YC and startups. AMA
Hi Peter,

In this AMA you mentioned a few times that while the EB1A bar is high, it is perhaps not as high as it seems. Any advice for early career academics?, eg

As a reasonably successful postdoc at, say, Stanford (good scholarship, steady publication record, presentations at international conferences, and so on, but no proper 'recognized awards of excellence'), is it even worth considering EB1A, as opposed to a EB2 NIW which in contrast seems likely but would take a long, long time?

The wording 'sustained ... acclaim' makes it sound like you'd have to be a semi-famous professor, so I kind of ruled it out before. Have you seen young scientists pass EB1A? Thanks

yagyu··on A Theoretical Framework for Back-Propagation (1988) [pdf]
Coming from a physics background I once upon a time learned the basics of neural nets from Hertz' book https://books.google.com/books?hl=en&lr=&id=9a_SyUG-A24C

It is obviously outdated with respect to modern applications of NNs, but I still think he explains the basics of layered and recurrent networks in a clear fashion.

yagyu··on Ask HN: How do you organize your files
I did this (with dates) for all calculations I did during my PhD and it turned out very useful despite its simplicity. I guess it was simple enough that I could actually be consistent over years. I wish the rest of my projects were as orderly ;)
yagyu··on Brainfilling Curves: A Fractal Bestiary
This is the start of the free e-book, by the way: http://www.fractalcurves.com/HorrorVacui.html
yagyu··on Brainfilling Curves: A Fractal Bestiary
This site inspired me to make a fractal curve generator in d3.js once:

http://www.jonaseinarsson.se/fractal-curves/

(Not mobile friendly, sorry)

A good start is http://www.fractalcurves.com/Root9Square.html

Try to recreate some things from the fractal bestiary, and see how sensitive the end result is to the generator.. I use pretty much the same notation as he describes here http://www.fractalcurves.com/Turtle.html

yagyu··on The NHS's 1.2M employees are trapped in a 'reply-all' email hell
I just moved to the outlook webmail in a large-ish organization. It surprised me that Reply All is the default reply-button, and a regular reply requires expanding a drop down! The ui really encourages the mistake.
yagyu··on The Fourier Transform and its Applications
There is this hard question that is often glossed over in a first course on Fourier analysis: We learn that the Fourier transform of f(t) is an integral of exp(iwt)f(t) over all t. But when we look at a table of Fourier transform pairs, we find things like the Fourier transform of a constant function (is the Dirac delta). Integral does not converge? WTF?

I really think Prof. Osgood hits a sweet spot of not sweeping this under the carpet, and not becoming a course on functional/integration theory. I'm a postdoc in theoretical physics, and use these transforms regularly, and I have yet to find a more honest but still useful introduction (although I understand that real mathematicians cringe at my abuse of mathematics.. :)

edit: typo

yagyu··on Stockfighter's Jailbreak CTF trainer is live
wow, I just found microcorruption, now it looks like there's man-months of fun ahead.

Technical comment: "forgot password"-link is not wired to anything? Not working for me on FF at least.

yagyu··on Open access: All human knowledge is there, so why can’t everybody access it?
A light academic disobedience is to refuse to peer-review non-open papers.

I'm trying it for now, you could, too.

http://www.jonaseinarsson.se/2016/only-open-access-peer-revi...

yagyu··on Ask HN: What's your blog?
I haven't written much yet but I'll nevertheless take the opportunity to shamelessly link http://jonaseinarsson.se especially since I would love to hear what the HN crowd has to say about http://www.jonaseinarsson.se/2016/biological-computer-graph-... but the submission to HN pretty much fell right through :)
yagyu··on New biological device not faster than regular computer (PNAS via scihub)
Critique of http://www.pnas.org/content/113/10/2591.full (discussed https://news.ycombinator.com/item?id=11186640 and https://news.ycombinator.com/item?id=11194015 ).

Their reply and my summary at http://www.jonaseinarsson.se/2016/biological-computer-graph-...

yagyu··on Ask HN: What did you pay for firstnamelastname.com
~$12/year for jonaseinarsson.se and .com (it wasn't taken)

Semi-common name in Sweden.

yagyu··on Who's downloading pirated papers? Everyone
What can you do as a researcher without violating your contract? I decided to not referee papers to be paywalled. You can, too!

http://www.jonaseinarsson.se/2016/only-open-access-peer-revi...

yagyu··on Ask HN: What's your cost of living in the Bay Area now?
Thanks!
yagyu··on Feynman's Public Lectures on Quantum Electrodynamics
The 'proof' you refer to is likely Bell's theorem and friends:

"Bell's Theorem states that the predictions of quantum mechanics cannot be reproduced by any local hidden variable theory.": https://en.wikipedia.org/wiki/Bell_test_experiments https://en.wikipedia.org/wiki/Bell's_theorem

edit: the theorem has been fairly thoroughly experimentally tested and still holds.

yagyu··on Pencil code
I thought of http://pencil-code.nordita.org (large scale academic finite-difference solver for magnetohydrodynamics, applications for solar dynamics, supernovas etc)

(no affiliation, I just work in a related area)

yagyu··on Vector Animation with Python
Too much, or too little? :)
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