[-] [email protected] 2 points 21 hours ago

You probably are familiar with the thing, just not under that name, and not as a subject of mathematical study. I am aware that there are, at least in theory, mathematicians never expanding beyond pen+paper (and that's fine) but TBH they're getting kinda rare. The last time you fired up Julia you probably used them, R, possibly, Coq, it'd actually be a surprise.

They're most widely known to trip up newbie programmers, causing excessive bug hunts and then a proud bug report stating "0.1 + 0.2 /= 0.3, that's wrong", to which the reply will be "nope, that's exactly as the spec says". The solution, to people who aren't numerologists, is to sprinkle gratuitous amounts of epsilons everywhere.

[-] [email protected] 1 points 1 day ago

And this is exactly why I always humour tech support when they're asking me which lights exactly are on, which colour, and their blinking patterns. I've already made the diagnosis yes the problem is on their end but it's not like they have a way to know I'm not full of shit.

[-] [email protected] 5 points 1 day ago* (last edited 1 day ago)

It's a wonderful world where 1 / 0 is ∞ and 1 / -0 is -∞, making a lot of high school teachers very very mad. OTOH it's also a very strange world where x = y does not imply 1 / x = 1 / y. But it is, very emphatically, an algebra.

Mostly it's pure numerology, at least from the POV of most of the people using it.

[-] [email protected] 6 points 1 day ago

IEEE 754

I mean it's an algebra, isn't it? And it definitely was mathematicians who came up with the thing. In the same way that artists didn't come up with the CGI colour palette.

[-] [email protected] 8 points 2 days ago* (last edited 2 days ago)

And everyone just uses "log" in CS because noone cares about the base.

...if you specifically want the natural though it's ln. ld for binary, base 10 is pretty much unheard of. Such an uneven number.

[-] [email protected] 32 points 2 days ago* (last edited 2 days ago)

Oldie but goodie:

< > ! * ' ' #
^ " ` $ $ -
! * = @ $ _
% * < > ~ # 4
& [ ] . . /
| { , , SYSTEM HALTED

Waka waka bang splat tick tick hash,
Caret quote back-tick dollar dollar dash,
Bang splat equal at dollar under-score,
Percent splat waka waka tilde number four,
Ampersand bracket bracket dot dot slash,
Vertical-bar curly-bracket comma comma CRASH!

"waka" didn't gain popularity among people, at least not among any I ever heard about, usually it's angle bracket. I'm quite partial to 'tic' and 'tac'. The rest is standard or at least common, IMO | is pipe and {} braces. * is often called asterisk or star but splat is just better. And # is most definitely not "hashtag". Here's an overview of what's out in the wild.

[-] [email protected] 2 points 2 days ago* (last edited 2 days ago)

Coal is going to stick around for certain applications for pretty much forever. What'd be interesting to see is charcoal refined to anthracite-levels of performance so applications needing that kind of grade can become carbon-neutral.

And it's not even always railway enthusiasts operating the remaining steam locomotives btw in Poland they're still in regular service. They phased out steam very late because of various economic reasons and once they did steam was already a nostalgic thing so they kept a depot and associated lines open.

[-] [email protected] 2 points 2 days ago

Nope. Good bread basically never comes in slices, and definitely not in the country that invented pre-sliced bread.

[-] [email protected] 3 points 2 days ago* (last edited 2 days ago)

Someone else here linked to knowyourmeme.

Most of them are glaringly obvious, some are meta. This one though can easily come across as "stuff closeted misandrists say to get a pat on the back" if you don't know the format. Flanked by a good dose of nerd shaming.

I mean it's true, men will literally comment on the internet before going to therapy. We will also literally tie our shoelaces before going to therapy.


You know what, this is a good thing. This time actually reading the knowyourmeme article, they're a parody reaction thing. Some 20, 30 years ago a new pattern of insult cropped up here in Germany, things like Warmduscher and Schattenparker, "someone who takes warm showers", "someone who parks in the shadow". They were never meant literally-literally, but they did come up with a definite air of "you should be toughing it out", "being a bit sensitive about things aren't we". They were quickly balanced out by things like Drahtseilbungeespringer, roughly "steel cable bungee jumper".

Humour is serious business and usually the best weapon against shittiness we have, and if occasionally we have things that can be misinterpreted, like here, overall it's still worth it.

[-] [email protected] 2 points 3 days ago

amd they are in the past seen as weird, abnormal, or hysterical for having interests.

I don't think it's ever been considered more weird, abnormal, or hysterical to crotchet as a gal than it has been to build bottle ships for guys. That is, sure, there's been lots of BS around the type of hobby, it not being "gender-adequate", but women not allowed to have hobbies? At all? What? Being too poor to have hobbies, sure, but that again is not a gendered thing.

[-] [email protected] 4 points 3 days ago

Would've been more productive to keep it at "male depression and anxiety is underdiagnosed", maybe also say "because therapists only learn about female-pattern symptoms", YMMV on that being pushing a bit too far.

I will not comment on comments talking about men's mental health getting downvoted in a post about men's mental health and, should a definite pattern emerge, let that speak for itself.

[-] [email protected] 4 points 3 days ago

Altavista. Back when keywords still meant something.

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submitted 1 week ago by [email protected] to c/[email protected]

A new paper suggests diminishing returns from larger and larger generative AI models. Dr Mike Pound discusses.

The Paper (No "Zero-Shot" Without Exponential Data): https://arxiv.org/abs/2404.04125

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submitted 1 week ago by [email protected] to c/[email protected]
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submitted 2 months ago by [email protected] to c/[email protected]
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submitted 2 months ago by [email protected] to c/[email protected]

Press release of the Parliement itself


  • Safeguards on general purpose artificial intelligence
  • Limits on the use of biometric identification systems by law enforcement
  • Bans on social scoring and AI used to manipulate or exploit user vulnerabilities
  • Right of consumers to launch complaints and receive meaningful explanations

On Wednesday, Parliament approved the Artificial Intelligence Act that ensures safety and compliance with fundamental rights, while boosting innovation.

The regulation, agreed in negotiations with member states in December 2023, was endorsed by MEPs with 523 votes in favour, 46 against and 49 abstentions.

It aims to protect fundamental rights, democracy, the rule of law and environmental sustainability from high-risk AI, while boosting innovation and establishing Europe as a leader in the field. The regulation establishes obligations for AI based on its potential risks and level of impact.

[...]

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submitted 3 months ago by [email protected] to c/[email protected]

We interview half a dozen artillerymen, medics, and others, in this exploration of the life of artillerymen in the most intensive artillery war on the planet, the Russian invasion of Ukraine. The interviews are extensive and unfiltered. They cover topics like living on the front, cluster munitions, living underground, the mental health of soldiers, alienation from civilian life, what motivates them to fight, surviving in the winter, what they do for fun, and many more stories.

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submitted 4 months ago by [email protected] to c/[email protected]

Mensch jetzt hab ich schon so viel in den Titel gepackt bleibt ja gar nichts mehr übrig für hier.

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submitted 4 months ago by [email protected] to c/[email protected]

This is a long one, flipping a common understanding of things on its head: Instead of seeing certain things e.g. tankies believe as Russian-caused disinformation (most prominently, colour revolution theory) it traces that stuff back to Lyndon LaRouche and chalks up what Russia is doing to KGB-brains swallowing an American conspiracy theory as truth: It's not that Russia has master-minded some disinformation campaign against the orange revolution, Maidan etc. to justify the invasion, the Siloviki actually believe that shit.

If you ask me that makes a jading amount of sense.

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submitted 4 months ago by [email protected] to c/[email protected]

In this video, I measure a wave of electricity traveling down a wire, and answer the question - how does electricity know where to go? How does "electricity" "decide" where electrons should be moving in wires, and how long does that process take? Spoiler alert - very fast!

I've been very excited about this project for a while - it was a lot of work to figure out a reliable way to make these measurements, but I've learned SO much by actually watching waves travel down wires, and I hope you do too!

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submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/[email protected]

This is from the 37th Chaos Communication Congress, still ongoing y'all might find other things of interests there, e.g. sticking with looking at stars the talk about the Extremely Large Telescope. Congress schedule, live streams, relive and released videos (i.e. final cuts not the automatic relive stuff which is often quite iffy)

Talk blurb:

The Solar System has had 8 planets ever since Pluto was excluded in 2006. This has made a lot of people very angry and been widely regarded as a bad move. But did you know Neptune was discovered as the 12th planet? Or that, 80 years before Star Trek, astronomers seriously suspected a planet called Vulcan near the Sun? This talk will take you through centuries of struggling with the question: Do you even planet?!

In antiquity, scientists counted the 7 classical planets: the Moon, Mercury, Venus, the Sun, Mars, Jupiter and Saturn – but their model of the universe was wrong. Two thousand years later, a new model was introduced. It was less wrong, and it brought the number of planets down to 6: Mercury, Venus, Earth, Mars, Jupiter, Saturn. Since then, it's been a roller coaster ride of planet discoveries and dismissals.

In this talk, we stagger through the smoke and mirrors of scientific history. We meet old friends like Uranus and Neptune, forgotten lovers like Ceres, Psyche and Eros, fallen celebrities like Pluto, regicidal interlopers like Eris and Makemake as well as mysterious strangers like Vulcan, Planet X and Planet Nine.

Find out how science has been tricked by its own vanity, been hampered by too little (or too much!) imagination, and how human drama can make a soap opera out of a question as simple as: How Many Planets in Our Solar System?

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submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/[email protected]

~~Astronomers~~Engineers^1^ presenting at the 37th Chaos Communication Congress for a general but technical audience. The congress is still going on in case you're interested, lots of interesting stuff there and don't be afraid of German talks there's real-time dubbing.

Talk blurb:

The Extremely Large Telescope (ELT) is currently under construction in the Atacama desert in northern Chile by the European Southern Observatory (ESO). With a primary mirror aperture of 39m, it will be the largest optical telescope on earth. We will briefly introduce the history and mission of ESO and explain how a modern optical telescope works.

The European Southern Observatory (ESO) is an intergovernmental organisation founded in 1962 and is based in Garching bei München. It develops, builds and operates ground-based telescopes to enable astronomical research in the southern hemisphere and to foster cooperation in the international astronomical community. In 2012 the ESO Council approved the Extremely Large Telescope (ELT) programme and its construction is scheduled for completion in 2028. The 39m primary mirror will make the ELT the largest optical telescope at that time.

It will be located on the top of Cerro Armazones, a ~3000m high mountain in the Atacama desert in Chile. This site provides ideal optical conditions, but also comes with logistical and engineering challenges.

We will walk you through the telescope and along the optical path to the instruments and explain some of the technologies involved to push the boundaries of ground-based optical astronomy.


^1^ Oh boy the "what is it good for" question got them swimming. "I'm not an Astronomer -- Science, I guess? Looking at things?" :)

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submitted 4 months ago by [email protected] to c/[email protected]

Link to talks schedule, times are CET (deal with it)

Streams will show up here and final recordings here. There's generally also rough-cut recordings posted automatically after a talk is over, don't have a link for that yet.

Oh and for completeness' sake the congress' web page.

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submitted 5 months ago by [email protected] to c/[email protected]

Today we're looking at an ion milling machine. This instrument accelerates argon particles to high velocities and then slam them into your sample, acting as an atomic sandblaster. The sample is slowly etched due to the transfer of kinetic energy from the argon gas molecules. It can etch literally any material, even diamond!

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barsoap

joined 11 months ago