japanuspus

10 ms·

61.
by japanuspus 3y ago
It is surprisingly difficult to get pure hydrogen to burn. The DOE safety sheet [0] lists an upper flammability limit of 74% which matches my experience pretty well. In other words: gunshots would most likely just cause leakage. [0] https:
62.
by japanuspus 3y ago
Also: for inspecting wind turbines (which I imagine would be a use-case), the operators usually want to work on low-wind days anyway. I used to work at a large offshore wind operator, and the approach we used there for leading-edge inspecti
63.
by japanuspus 3y ago
The work to measure the meridian with the highest possible precision was in itself a fascinating multi-year ordeal: https://en.wikipedia.org/wiki/Arc_measurement_of_Delambre_an... .
64.
by japanuspus 3y ago
If you want to follow the details of offshore wind projects, you can consult the the map published by 4C offshore [0] which is used as a reference by everyone in the industry. [0]: https://map.4coffshore.com/offshorewind&#x2
65.
by japanuspus 3y ago
Not sure if you are trolling of really believe this to be true, but for anyone else assuming good faith: The diffusion aspect is (of course) well-modeled, see e.g. references under "past greenhouse gasses" at [0]. [0]: https:&#x2
66.
by japanuspus 3y ago
Another comment has this link to an Indian government website with simple tests for various food adulteration: https://eatrightindia.gov.in/dart/
67.
by japanuspus 3y ago
For anyone who studies Martian geology: What is the deal with the 5km deep gorge extending for 1000's of km around -70.654932°‎, -11.473828°‎? It looks like the planet was almost torn in half. (Turn on "MOLA Topography"-layer
68.
by japanuspus 3y ago
This is my preferred way to work as well. Some techniques to address what you are missing: 1. Only checking in semantic differences (not output, timestamps, etc.): Use the `jupytext`-extension [0] to seamlessly pair you notebook with an lig
69.
by japanuspus 3y ago
Total agreement on QGIS: seems daunting at first, but if you know exactly what you want you can usually get there in half an hour. I have been using this a lot for scout activities and keep grandma-style notes of which buttons to push for a
70.
by japanuspus 3y ago
In Denmark we now have an infrastructure / network-provider split on fibre, so that one company provides the physical infrastructure and then there is an open marked for network providers to provide services over that fibre. Physical l
71.
by japanuspus 3y ago
I once heard an anecdote that during the industrial revolution in the UK, "mills" were build out in the country where hydropower was available and the mill owners would also build homes to sell to workers. When recession hit and t
72.
by japanuspus 3y ago
Similarly, my attempt to get my son started on simple HTML was stranded by his school disabling the "developer view" in Chrome. I suspect the simple reason is that seeing the source allowed you to cheat on some of the educational
73.
by japanuspus 3y ago
This. Recently came back to macOS after a decade on the other side, and one surprise was how terrible the official Dropbox client was. Installed Maestral instead and it just works -- just like Dropbox used to. <begin rant>I see Dropbo
74.
by japanuspus 3y ago
Nevertheless tenured academics are expected to handle this themselves in parallel with teaching and research...
75.
by japanuspus 4y ago
Think there are large regional differences here. My experience from living two years in Boulder, CO a while back was that the first intro question was always "what did you do in the weekend". I'm Danish, so it was not until I
76.
by japanuspus 4y ago
Having done personal taxes in both Scandinavia (Denmark) and the US, I would claim the opposite: The US system is relatively simple, and finding precise instructions is possible. Admittedly, my life was simpler then (rental property, no inv
77.
by japanuspus 4y ago
Quanta magazine article on subj.: https://www.quantamagazine.org/bob-metcalfe-ethernet-pioneer... (This link is also on front page right now, but not getting any comments).
78.
by japanuspus 4y ago
My favorite pytest trick: Using jupytext notebooks as tests. I always use a notebook for notes and experiments when building python packages. By using `jupytext`[0] I can store the notebook as a commented python-file, which I can run from a
79.
by japanuspus 4y ago
Or at least arithmetic. And as the old (physicists) saying goes, you should never trust a true mathematician to use numbers larger than 4.
80.
by japanuspus 4y ago
For anyone wondering about the domain name: Week 42 is the "autumn break" in Denmark: kids are home from school, you are still filled with travel from your summer holiday, weather is typically ok -- so in short, it is the perfect
81.
by japanuspus 4y ago
This is a fascinating subject. I stumbled into it (without knowing of Chebyshev) while playing with a "lego walker" back in 2018. Even did a couple of blog posts [0,1] (in danish, and mostly for my own benefit) exploring the geome
82.
by japanuspus 4y ago
Completely agree. This article [0] by Raphael Poss, explicitly listing how functional constructs look in Rust compared with "pure" functional languages is one of my favorite takes on Rust. [0]: https://dr-knz.net/r
83.
by japanuspus 4y ago
An alternative is to run maxima from jupyter: https://github.com/robert-dodier/maxima-jupyter .
84.
by japanuspus 4y ago
My impression is that most people doing heavy automatisation in Home Assistant are using Node Red or AppDaemon [1] almost exclusively. [0]: https://community.home-assistant.io/t/home-assistant-community-add-on-node
85.
by japanuspus 4y ago
Synthetic fuels will be nothing but greenwashing for the next 20 years: there is massive demand for industrial hydrogen (most fundamentally for synthetic fertilizers), and as long as that demand is not met with hydrogen from renewable sourc
86.
by japanuspus 4y ago
This is exactly what Tauri does: unlike Electron it relies on the system web engine.
87.
by japanuspus 4y ago
The new part here is creating two entangled light beams at wavelengths suitable for interacting with trapped atoms. The general technique of creating entangled beams via OPO has been used for years at other wavelengths, and the resulting be
88.
by japanuspus 4y ago
As detailed in the other answers, there are two parts to this: 1) Creating a python package from your project (and possibly share this on pypi), and 2) Making this package available as an end-user application. For step 2 you can use nuitka
89.
by japanuspus 4y ago
Good point. In fact, since the end product (desalinated water) is easy to store in great amounts, desalination could be one of the processes that would run when surplus energy is available. With current prices for renewable generation and s
90.
by japanuspus 4y ago
This is the question I see way too few people asking: how do we want end-game capitalism to look. Should it be Banks' "The Culture", or should it be neo-feudal with the populace at large acting as serf to capital. Without dis

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