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Dr. Juande Santander-Vela

@juandesant@mathstodon.xyz
mastodon 4.7.2
  • Open on mathstodon.xyz

PhD in radio astronomy and VO; Joint ALMA Observatory Development Systems Engineer. Half astronomer, half Systems engineer, half developer (those halves overlap!). Previously at #ESO #IAA-CSIC #SKAO #DataObsCL. He/him.

Only boost images with useful/meaningful alt-text. Might unboost after review.

This is a searchable profile.

Avatar: person looking to the camera, pretending to surf on a fake plastic wave.
Banner: Pen and paper sketch of ALMA by Olivia H. Wilkins.

1427 Followers
2269 Following
45 Posts
Joined October 27, 2023
Blog:
https://santander-vela.net/
Flickr:
https://flickr.com/people/juandesant/
ORCID:
https://orcid.org/0000-0002-2660-510X
Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@timbray@cosocial.ca what he calls Gegenschein is called Zodiacal Light in astronomy, and Brian May (yes, THAT Brian May) did his doctoral thesis on it… https://en.wikipedia.org/wiki/Zodiacal_light https://en.wikipedia.org/wiki/Brian_May
en.wikipedia.org
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago

RE: @publicdomainrev@mastodon.social

That cygnetd shape seems like an extruded Sierpiński triangle:

https://en.wikipedia.org/wiki/Sierpi%C5%84ski_triangle

mastodon.social

The Public Domain Review: "Not without controversy, #onthisday in 1876 Alexa…" - Mastodon

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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@scalzi I’m afraid I’m old enough to have seen Star Wars when it debuted… and the fact that it was labelled as Episode IV was always in my mind… so it was Star Wars (A New Hope) for me. (Of course, it was not Star Wars here; it was “La Guerra de las Galaxias”, which is even more powerful 😉)
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@ahimsa_pdx@disabled.social OK, in both cases they are light reflected from interplanetary dust essentially in the disc where planetary formation happened in our solar system. The main difference is that you can see that reflected light either at an angle from the sun, and then it’s zodiacal light, or back reflected directly from the sun behind the observer. In any case, it’s always material (mostly) in the plane of the ecliptic, which means you have the constellations of the Zodiac in that shine, regardless of mode.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@hotcoffee@toot.community @daringfireball@mastodon.social What a great phrase… I also immediately thought of the infamous iPad Pro press ad when Nilay talked about flattening people… One of the astronomy Ph.D. students of my cohort used to say that “software people are always trying to socialize their problems”, and at the time I saw part of his point, but now I realize how right he was.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago

RE: @jbz@indieweb.social

This guitar-rocking Tyrannosaurus Rex was my favorite from this stack. And the fact that you could lasso it from the stack was magical at the time.
#HyperCard #ClipArt #TwoBitArt

indieweb.social
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@sue 🤦🏻‍♂️
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 4mo ago
Replying to
@daringfireball@mastodon.social «Nextpad++ doesn’t feel like an alien. It feels like Vincent D’Onofrio’s alien-bug-in-human-skin character from Men in Black.» So true, @gruber@mastodon.social … is the same feeling I had with Word 6 for the Mac and the other Office apps of the time, times 100.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 4mo ago
Replying to
Hat tip to @TagHunt@infosec.exchange for the link! #BrowserFingerPrinting #WebPrivacy
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@jaj@mastodon.social @_elena@mastodon.social you’ll enjoy this, then… https://eupolicy.social/@hpod16/116538344713848285
eupolicy.social

Hannah Grace: "Excited to announce that the @EUCommission@ec.soc…" - EUpolicy.social - A Mastodon server for the EU bubble

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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@marcoarment@mastodon.social @pxlnv@mastodon.social the great mistake was allowing software not to be sold as a product, but licensed. That is the original sin from which everything else flows down.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago

I guess that if the options are _publish or perish_, the incentives to mislead are too great. However, some attempts are more newsworthy than others…

https://www.theguardian.com/world/2026/may/07/french-professor-florent-montaclair-accused-award-prize

theguardian.com
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago

Wow. Just wow. Although the last paragraph was already damning of the current lack of influence of the current board…

https://www.science.org/content/article/trump-fires-nsf-s-oversight-board

#NSF #NSFOversightBoard

science.org
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago

If you’re looking for a system internals person for macOS, iOS, and iPadOS, who has worked at Apple, and has many CVEs on privacy fixed accrediting their name, you cannot go wrong by hiring @rosyna@mastodon.social, see their CV: https://paradisefacade.com/about

#FediHire #AppleInternals #macOSInternals #APE #Haxie

paradisefacade.com
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@ianbetteridge you stuck the landing of this piece, well done! «The technology that displaces the worker and the proposal that makes that displacement politically tolerable are products of the same class of actors, emerging in the same news cycle. That is not a coincidence of timing. It is the shape of the new economy that they want to see emerge. The Roman grain dole didn't give the plebs more power. It made them manageable. What is being proposed now by the tech bros carries the same structural logic: not the reversal of dispossession, but baking it into the structure of society. The question of who owns the machines — and who should — still goes unasked.»
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 10mo ago
Replying to
@Gargron@mastodon.social that’s a very difficult step to take, and the fact that you’ve taken it speaks really well about you. Thanks for so you’ve done so far, for contributions still to come, and all the best!
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@jeffzugale you rule!
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@matt_birchler@mastodon.social is that thing reviving the Green Goblin? Because that sure looks like Willem Dafoe…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@map thanks for the resource, very useful. And I see now that both can be used… thanks again!
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@brucelawson so, you can be automatically eligible to die for the US, but not to vote. Got it.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago

Todo esto dentro de una administración que supuestamente tenía como principios la no discriminación… fantástico.
#Chile #BioBioRadio #Discriminación
https://www.biobiochile.cl/especial/bbcl-investiga/noticias/articulos/2026/04/02/patriarcal-y-sin-empatia-elemental-la-historica-condena-por-maltrato-a-jueza-en-el-poder-judicial.shtml

BioBioChile - La Red de Prensa Más Grande de Chile

En una sentencia histórica, el Segundo Juzgado de Letras del Trabajo de Santiago condenó al Fisco de Chile por los...

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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@jamesthomson s/he always gives a two, right?
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@jeroenbosman@akademienl.social they should do Open Source next…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago
Replying to
@ianbetteridge great article! Really insightful, had never thought there could be any relationship between Peter Thiel and the ‘60s… and it also tracks with TESCREAL ideology, as they are the ones that can make the hard decisions, as they are enlightened to the future of humanity.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago
Replying to
@badastro@mastodon.social Bad Astronomy for the win! Congrats!
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@map funny that sounds like Tokyo Now… what does なうmean in this context?
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 9mo ago

RE: @TidBITS@mastodon.social

This might resolve some issues you might be having with apps remembering their proper windows!

mastodon.social

TidBITS: "TipBITS: How to Ensure Mac Apps Open on the Right…" - Mastodon

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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@jbz «Within five years, the companies that stopped hiring juniors will be the ones posting breathless LinkedIn articles about their “talent pipeline crisis” and wondering how it happened. The rest of us will know exactly how it happened. We watched them do it to themselves in real time.»
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@Cdespinosa don’t let anyone tell him that, or he will not sign on it. Or maybe yes, if he can name the treaty after him…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 14mo ago
Replying to
@climagic@mastodon.social The expectation for a machine is that it does better than humans. But preferably not on deception…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@amt @rmi @jwz interesting, I’ll have a look at those… BTW, is not nix an immutable OS distribution? How does nix-darwin play with the system?
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@neffo @kenshirriff looks more like the grand-(x100)-mother of Solo’s L3-37…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 4mo ago
Replying to
@justkwin@toot.community I think @futurebird@sauropods.win would find this quite interesting…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@cafechatnoir@mastodon.social @seachanger@alaskan.social pinging @WeirdWriter@caneandable.social, who put in beautiful, powerful words how that experience of “semantic ablation” affected his writer friend. At least, it seems to be recoverable, but at what cost…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago
Replying to on social.jvns.ca
@b0rk@social.jvns.ca counting experiments with MkLinux [1] on a PowerMac 8200/120 as 1990s… then Mac OS X Public Beta [2], although technically none of them were considered Unices at the time… [1]: https://en.wikipedia.org/wiki/MkLinux [2]: https://en.wikipedia.org/wiki/Mac_OS_X_Public_Beta
en.wikipedia.org
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago
Replying to
@erik@mastodon.infrageeks.social @NanoRaptor@bitbang.social now I want to know more about it… and the first and third, at least 😉
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 9mo ago
Replying to
@soapdog don’t have a link to the Newton OS Human Interface Guidelines? #macOS #macOSTahoe #NewtonOS #HIG #HumanInterfaceGuidelines
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@shana I think the reverse take is more powerful: some loops can be avoided if you have a closed mathematical form for them. And as someone else noted when quoting this post, for loops imply an ordering, the mathematical operation does not. Plus, loops are just one form: generators are another, and the fact that \[\sum_{i=0}^{m} f(i) = \sum_{i=0}^{n-1} f(i) + f(n) + \sum_{i=n+1}^{m} f(i) \] means that generators are really another option.
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@louie love it!
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 6mo ago
Replying to
@jwz I started with Fink (maybe around 10.1) and happily moved to Macports around 10.5 or 10.6… however, I ended up using Homebrew in new machines and been happy since… specially because major macOS version changes are typically easier to manage. What are your main reasons to stay on Macports, stricter security, ports not yet on Homebrew…?
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 5mo ago
Replying to
@stroughtonsmith@mastodon.social interesting phrase of play…
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Open post
Dr. Juande Santander-Vela @juandesant@mathstodon.xyz
· 7mo ago
Replying to
@brentsimmons having said that, the index was very good before, and now it is not available many times.
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