japanuspus

7 ms·

31.
by japanuspus 2y ago
If you want to dive into the details, you can copy the "fonted" output to a unicode analyzer. [0] is an online unicode analyzer that seems to work well. [0]: https://devina.io/unicode-analyser
32.
by japanuspus 2y ago
The problem conda solved that nothing had solved before was installing binary dependencies on MS Windows. Before conda, getting a usable scipy install up and running on MS Windows was a harrowing experience. And having two independent insta
33.
by japanuspus 2y ago
You don't even need a plugin: I have been using a setup with parametrized tests and `runpy` for a while [0]. Works especially well if you use jupytext[1] for just storing the input part of the notebook as a python script -- which is go
34.
by japanuspus 2y ago
The Voyager mission is such a wild achievement. Both the sublime design and craftsmanship that must have gone into the hardware, and the deep institutional knowledge required to keep it running is awe-inspiring.
35.
by japanuspus 2y ago
This is crazy: my initial thought was that the first figure was some kind of diagram, but it is a microscopy photo of the actual physical system they have built! The "micro-robots" are constructed by two-photon polymerization and
36.
by japanuspus 2y ago
The correction for cruising height would be insignificant. A ram-jet is an air-breathing engine and would be confined to the atmosphere. Even a 60km cruising height (which is much higher than what would be used) would only correspond to a 1
37.
by japanuspus 2y ago
To me, Obsidian is a perfect example of how to get SaaS-revenue without making the user captive: All data is stored in an accessible form on the user hardware, and what you pay for is sync. X-user kepano (who is a/the creator of Obsidi
38.
by japanuspus 2y ago
This is the same country that basically threatened to leave the EU when rules to limit the contents of ammonium chloride in food were proposed [0]. Source: am Danish. [0]: https://www.euractiv.com/section/agriculture-fo
39.
by japanuspus 2y ago
They replace the flux used in steel recycling with used concrete, and instead of useless slag they get recycled cement. This is a really good idea, but it is important to keep in mind that even if all of the steel production in the world (~
40.
by japanuspus 3y ago
From family with a mix of kindles and kobos: yes, this is painless. You can check beforehand by installing Calibre with the de-DRM plugin and transferring a few books: Once they are on Calibre you are good to go. One thing I only learned to
41.
by japanuspus 3y ago
Because some of the windfarms still run on legacy contracts where they were incentivized by a guaranteed selling price for the power they produce. They are reimbursed for the loss of income they suffer due to curtailment.
42.
by japanuspus 3y ago
Everyday Astronaut has a recent video on "why don't we launch rockets from jets"[0]. The video obviously does not include reference to the engine mentioned here -- but I think most of the points still stand. In particular - o
43.
by japanuspus 3y ago
Comparing nitrites (which occur naturally) with PFAS and other "forever chemicals" is off the board. To my understanding the observed and very real ill-effects of toxic bacterial excretions due to nitrites being phased out in lun
44.
by japanuspus 3y ago
Are you aware that "Turing Complete" has a Verilog export function?
45.
by japanuspus 3y ago
One of the commentators on the Lillygo page mentions that this is perfect hardware for "Meshcom"[0], which is "a project to exchange text messages via LORA radio modules." This was the first use case that came to my mind
46.
by japanuspus 3y ago
Important context which I could not find mentioned in TFA: A key reason for the sympathy strikes is that Tesla brought in scabs which is a big no-no in Scandinavian labor markets.
47.
by japanuspus 3y ago
Where I live (Denmark), the real estate guild has captured the market by building the de-facto listing portal and only making it available to registered brokers. Sounds great if the US portal (MLS?) is available to all listings. For selling
48.
by japanuspus 3y ago
The thing is that compared to Token Ring etc., Ethernet really is an "ether" where you just send your packets and hope that there is no collision. But yes.
49.
by japanuspus 3y ago
For (~100kg) pedestrian, I am sure the difference in lethality from being hit by a 1000kg vehicle vs a 3000kg vehicle is insubstantial. Where the weight would matter is for vehicle-vehicle collisions.
50.
by japanuspus 3y ago
At current costs, a price-optimal solar/wind/battery mix for handling existing electricity needs would have on the order of 400% overcapacity. All that extra electricity is what will power the hydrogen-generation. The main challen
51.
by japanuspus 3y ago
Quantum factoring may not be quite as far distant as you might think Most importantly, Shor is not the algorithm of choice for first-gen hardware where the central challenge is likely to be circuit depth due to error correction overhead. Th
52.
by japanuspus 3y ago
Hey - Z80 was nice! I wrote Z80 assembly by converting from op-codes to hex by hand based on a couple of copied pages from the datasheet.
53.
by japanuspus 3y ago
[[citation needed]]
54.
by japanuspus 3y ago
The fundamental limit to energy expenditure is not the heating and boiling of water (as others have pointed out, that energy can all be captured). Rather, the limit is set by the requirement for the entropy of the universe to not decrease w
55.
by japanuspus 3y ago
The reason this makes sense is that without glyphosate, farmers (and private gardeners) would start using something else, and the likelihood that whatever new compound they find will be worse than glyphosate is very low. Yes, there are indi
56.
by japanuspus 3y ago
I realize this is tongue in cheek, but really: Read code! If you ever start plateauing in your code skills, start digging into the code of your favorite open source project. Accept that things have been done in another way than you would fo
57.
by japanuspus 3y ago
Seeing the paragraph below I almost thought the author would move on to discuss the particular engineering horror that is logarithms of non-dimensionless values, but it is probably all for the best that this practice remains hidden. "A
58.
by japanuspus 3y ago
Related post currently on the front page: "What is Dimensional Analysis", https://news.ycombinator.com/item?id=37493955
59.
by japanuspus 3y ago
This is incorrect. The magnetic flux will induce an electromotive force that will cause a current to flow in any conducting material and cause heating if this material is not superconducting. As an example, induction heating is a commonly u
60.
by japanuspus 3y ago
I read this comment as implicitly assuming two phases to require less copper than three. In reality, the total copper cross-section needed to transfer power in a multi-phase system _decreases_ with increased number of independently wired ph

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