Hacker News new | past | comments | ask | show | jobs | submit | defanor's comments login

Sounds like a fun fact, but were those drawn by people who can draw cows and humans, and aim to draw realistically? Middle Ages were quite a dip in art generally, AFAICT, with humans often not looking realistic, either.

I guess it possible that these were just terrible artists, But it seems more likely that they just didn't know what a lion actually looked like. Afterall, if you were an English medieval monk, how likely were you to see an actual lion? They were no photos to go off.

Check out this Cambodian lion: https://artuk.org/discover/artworks/a-guardian-lion-281362 The craftsmanship is quite impressive. But it doesn't look anything much like a lion IMHO.


I guess that Cambodian lion is rather like the Chinese lions, which "are intended to reflect the emotion of the animal as opposed to the reality of the lion" [1], falling into the bucket with intentionally unrealistic (non-lifelike) art.

[1] https://en.wikipedia.org/wiki/Chinese_guardian_lions#Appeara...


There were a few English artists who might have had the opportunity of knowing what they looked like, given there were lions at the Tower of London:

https://en.wikipedia.org/wiki/Tower_of_London

"Records of 1210–1212 show payments to lion keepers" - although who was allowed to visit the lions is a different question ...


Do you mean that cryptocurrency submissions were penalized that way? I recall them being about as annoying and similarly filling the front page with uninformative submissions, but have not heard of such penalties. Same as with other subjects during their hype waves.

And if you have JS disabled by default, it redirects to a page on a different domain name, so you cannot easily allow it in noscrpt just for that website, even if you want to. I gave up on that though; judging by the title, the article is going to be about modelling all the things as functions, as commonly and similarly done with other objects (e.g., sets, categories), which I wanted to confirm, and maybe to nitpick on this perspective and/or the title then (i.e., it is not quite correct to declare everything a function just because you can model or represent things that way).

I do store and update backups of public information regularly, since losing access to much of the Internet completely is not such a remote possibility here; many resources are blocked already, both proxying services and protocols are being blocked as well. Storing those backups together with personal data backups.

The things I store are those that seem valuable and information-dense, the kinds that I would be able to use in a relatively prolonged isolation. Storage space is limited, and redundancy is important for backups, so more copies of important information are preferable, to some extent, over added less important information. That is, one may consider tiered backups.

Wikipedia and Project Gutenberg, perhaps as OpenZIM archives (for Kiwix, making them more readily accessible), look like good starting points, along with other Wikimedia projects (e.g., Wikisource, Wiktionary; also available as OpenZIM archives). A music collection is a part of my personal backups. Then there are textbooks: OpenStax provides good ones under the CC BY license, LibreTexts books are of variable quality, but also worthwhile to look into, while WikiBooks are mostly disappointing. Then one may consider copyright-infringing book libraries, if one is fine with those. A few hundred gibibytes seem sufficient for a decent stockpile, including a good chunk of human knowledge, and providing plenty to do alone (read and study, that is).

Textbooks could be much more lightweight if their sources (e.g., in LaTeX) were provided, rather than PDFs, but unfortunately even for those under permissive licenses, usually only PDFs are available, which hinders both printing (as another form of backups) and regular digital data storage.

I expect the government will block software repositories among the last ones, so not backing up those yet, but mirroring, say, Debian archive (including sources) may be a good idea for such a situation, or when preparing for the Internet to go down.

If one has a lot of extra storage available, other easily available large data dumps to consider are Common Crawl, arXiv bulk data downloads, complete OSM data, huge copyright-infringing libraries, and videos: plenty of nice YouTube channels and TV series.


And I am okay with YouTube when a video makes sense, but in this case they have basically crammed a short article into a video, making it more awkward to read: slides with texts and diagrams, with some background music, and only a video demonstration in the end.


I also caught myself thinking that most of the content would be more accesdible as an article - I needed to pause and rewind several times. Although the aticle would include some video fragments (the final demo and some others)


Last year, I went for an explicitly useless project of this kind, which would probably qualify as an "elaborate ASCII art generator": ray tracing into ASCII graphics, in Emacs Lisp [1].

Afterwards, after (or during?) AoC 2023, inspired by both that project and AoC, I wanted to work on something similarly fun and useless, and composed a RISC-V emulator in Emacs Lisp [2] (RV64GC, but with unfinished floating-point operations; emulates a few Linux syscalls, so can run some programs, like dash).

Other exploratory and educational projects tend to be pretty useless as well, but not always so explicitly, and then questioning their usefulness may spoil the fun.

[1] https://codeberg.org/defanor/3d.el/

[2] https://codeberg.org/defanor/rv.el/


> Your motion through the x dimension in space, for example, is completely independent of your motion through the other two (y and z) spatial dimensions.

If one considers motion at (or near) the speed of light, that speed would have to be shared among space dimensions, just as with the time dimension. So not that independent.


i've never really 'properly' understood spacetime - can you expand on your comment?

why would going v fast in the x direction affect y and z?


We constantly move at the speed of light through space-time.

If we start to move through space, we slow down through time.

If we go full speed through space, like a photon, we will not experience time at all. So from the perspective of a photon, everything happens at the same time, from the big bang to the heat death.


If I am seen to go at [v_x, v_y, v_z] = [0.9, 0.9, 0.9]c, then I would be going at about 1.56c in the [1, 1, 1] direction, which is impossible.


Think of it as a maximum vector length. As one component of the vector nears the maximum length, the other components most reduce until the vector is aligned with only one axis and at the maximum length - the other components must all equal zero.

That is - to my limited understanding - essentially why photons are “timeless”.


Neither does soft wrap play nicely with preformatted texts (e.g., ASCII graphics, including diagrams and ornaments such as titles centered with spaces, as well as formatted code).

And the support for soft-wrapping in tools varies: it may be completely unavailable, or just turned off by default, and generally unused in such a case.

I think reflowable text enters the area of markup languages, rather than plain text.


Not directly related to the article's message (though may count as collaborative "sanding"), but related to its UI: the page has texts centered (margin-left: auto, margin-right: auto, short lines), but paragraphs with embedded images lack that, and the images are aligned to the left. I thought it may be due to JS disabled (if it relies on JS for the layout somehow), but enabling it did not change that. Observed in Firefox 115; it is not the intended layout, is it?


Without JS, it does not show any content at all, but once you disable CSS as well, the contents show up.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: