UmbralRaptor changed the topic of #kspacademia to: https://gist.github.com/pdn4kd/164b9b85435d87afbec0c3a7e69d3e6d | Dogs are cats. Spiders are cat interferometers. | Космизм сегодня! | Document well, for tomorrow you may get mauled by a ネコバス. | <UmbralRaptor> … one of the other grad students just compared me to nomal O_o | <ferram4> I shall beat my problems to death with an engineer.
<bofh>
R-process generates a lot of stuff. :P
<bofh>
unrelated, but I love ZnS:Cu ("green" phosphors on especially old electronic equipment) phosphors, particularly when overhead fluorescent lighting is enough to have them glow afterwards for a bit.
<SnoopJeDi>
is that what this NIMO thing is because I'm watching this video atm
<bofh>
well that's the phosphor colour there (531nm)
<bofh>
so yeah :P
<SnoopJeDi>
gotcha. same.
<egg|zzz|egg>
!wpn bofh
* Qboid
gives bofh a Сюняев-Зельдович Eva
<bofh>
!wpn egg|zzz|egg
* Qboid
gives egg|zzz|egg a ██████████████ symbol which vaguely resembles a feline
<bofh>
cat!
<SnoopJeDi>
oh, another colloquium oddity. Second talker said he would give us an "attosecond" introduction to GR (the talk was about the intersection of optics and gravitation), "with no equations...well, a few simple equations"
<SnoopJeDi>
very first equation was the expression for ds² :P
<kmath>
<jakevdp> Totally useless data science fact: in python, 'python' > 'R' evaluates to true. in R, 'R' > 'python' evaluates to t… https://t.co/TbQr7O2WYV
<bofh>
LOL
<UmbralRaptor>
LOL
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<xShadowx>
how is tomato supposedly a fruit, and not rightfully a vegetable?
* xShadowx
votes vegetable
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<Ellied>
lots of things that are biologically fruits are culinarily other things
<Ellied>
beans and nuts for instance
<Ellied>
but I mean even if you narrow the definition a little tomatoes still tend to qualify, what with being all soft, juicy, and full of sugars in addition to the obvious "has seeds" thing
<Ellied>
cucumbers are also technically fruits
<awang>
Hmmm, looks like OpenJDK is looking into making HotSpot self-hosting?
<Ellied>
contrast to potatoes, carrots, celery, and that sort of thing, which are vital plant parts that are *not* used for dispersing seeds
<awang>
Well, not exactly HotSpot. Java-on-Java
<SnoopJeDi>
yo dawg I heard you like Virtual Machines
<SnoopJeDi>
alternative joke: `java /dev/xzibit`
<awang>
SnoopJeDi: Could you elaborate on the /dev/xzibit part? I don't get it
<SnoopJeDi>
do you know who xzibit is
<UmbralRaptor>
java docker.jar
<SnoopJeDi>
LOL
<UmbralRaptor>
(I do not know who xzibit is)
<awang>
No
<SnoopJeDi>
he's the guy in the "yo dawg" image macro and host of "Pimp My Ride," which originated that meme
<SnoopJeDi>
(because of the show's tendency to put rather extraneous Stuff™ into cars)
<UmbralRaptor>
Hah.
<SnoopJeDi>
2017, USA vs. Japan giant robot fight.
<kmath>
<astro_jje> Wow, Tuguldur Sukhbold has just made these awesome plots of all known black hole and neutron star masses with *erro… https://t.co/3uWO88BFnS
<UmbralRaptor>
(thread with links)
<UmbralRaptor>
Incidentally, there are no supermassive black holes on that plot.
<soundnfury>
UmbralRaptor: I don't think giving konrad a decent integrator need be hard
<soundnfury>
the integrator is mostly encapsulated in sim.py:RocketSim3D.step()
<soundnfury>
what you _couldn't_ do is make it support nbody, because outside of the 'integrating bit' it does everything in Keplerian gubbins
<Ellied>
LIGO hasn't seen the gravitational waves from any supermassive black hole mergers yet, right?
<Ellied>
I'd expect those to be, uh, very uncommon, but I don't know.
<SnoopJeDi>
nothing they've announced, heh. Presumably they'd be pretty uncommon inasmuch as they'd require galaxy collisions?
<SnoopJeDi>
which seem rare in themselves, since AIUI galaxies are typically going to form later in the structural "freeze-out", so that most collide-y things just turn into the same galaxy's worth of starting material.
<Ellied>
They found a surprisingly huge black hole in a smallish globular cluster, didn't they? I don't know where you tend to find supermassive black holes besides galactic nuclei but I get the idea that it's a thing?
<SnoopJeDi>
the chatter today among the astro folks today indicated the black holes found are much larger than the community had expected going in
<SnoopJeDi>
I dunno enough about the size categorization but my understanding is that anything you'd call "supermasssive" is nuclei alone
<SnoopJeDi>
...unless there are supermassive black holes that have gobbled up their entire hosts or host leftovers from near-passes that strip lots of stars...?
<Ellied>
huh, TIL there's a rough upper limit to how big black holes can easily grow at around 50 billion solar masses, at which point orbits around them are more or less stable and nothing falls in anymore
<SnoopJeDi>
hmm, is there a particular dynamic effect to that? not enough stuff to gobble beyond such-and-such radius in a typical proto-galaxy?
<Ellied>
I'm paraphrasing the wikipedia page, it says the accretion disk coalesces into stars
<SnoopJeDi>
jeez, I just realized that the G2 transit was 3 years ago
<SnoopJeDi>
I *think* I remember wandering into the astronomy seminar as a still-wet-behind-the-ears grad student and hearing about "ooh this gas cloud transit is coming!" and feeling the excitement second-hand
<Ellied>
"If a neutron star collides with red giant of sufficiently low mass and density, both can survive in the form of a peculiar hybrid known as Thorne–Żytkow object, with a neutron star surrounded by a red giant." what
<SnoopJeDi>
"The surface of the neutron star is very hot"
<SnoopJeDi>
simple.wikipedia.org is leaking
<UmbralRaptor>
Any neutron star artwork that does not show it as pale blue is false color.
<UmbralRaptor>
okay, I might be wrong for *old* neutron stars, but any detectable pulsar…
<SnoopJeDi>
So, quite astronomical, then? :P
<SnoopJeDi>
oh, another gravitational wave "hows-about-that" from today's talk: apparently the GW community, when referring to measuring the Hubble constant with GW results, refers to binary coalesence events as "standard sirens"
<UmbralRaptor>
Hah
<SnoopJeDi>
well, multi-messenger events, anyway. (H_0 as measured for this event is consistent with prior measurements, but they claim it is completely independent of them)
<Ellied>
sounds like a good label for a drawer in the undergrad lab room of requirement
<Ellied>
right next to the one labeled "STANDARD CANDLES"
<SnoopJeDi>
standard klaxons
<SnoopJeDi>
shoot, don't stop there, put a "STANDARD" sticker on every fire hydrant in the building
<SnoopJeDi>
uh, extinguisher
<UmbralRaptor>
ISO… something.
<SnoopJeDi>
hydrants too but presumably you have more of the latter
<Ellied>
H_0 looks like a person trying to look wide-eyed but they have something in their right eye
<SnoopJeDi>
considering ES&H being global and those cylinders looking awfully the same everywhere UmbralRaptor, I bet
<SnoopJeDi>
ISO 7165 apparently
<UmbralRaptor>
heh
<soundnfury>
Ellied: it's someone very surprised that you just stabbed them in the eye, clearly
<soundnfury>
"I did not see that coming. And now I never will."
<soundnfury>
SnoopJeDi: so long as the extinguishers aren't filled with Стандард, that stuff's probably quite flammable
<Iskierka>
Ellied, Scott Manley's stars inside stars video was about those objects. Also mentions a theoretical model of the same thing with a black hole inside a giant star
<APlayer>
Humm, I asked this on #KSPOfficial a while ago, but it was never really answered... So, according to relativity, time slows down for fast objects. Now, what happens if I take a piece of radioactive, say, Uranium, and heat it up to a temperature where the individual atoms move at relativistic speeds? Will the half life of the Uranium increase?
<APlayer>
Could this be a way to produce measurable amounts of something that decays within a few microseconds?
<Iskierka>
anything with relativistic atoms would be plasma, not solid, and you're slowing down the relative time, so it will decay slower
<Iskierka>
at least with linear motion. I am unsure that it would be slower long-term when confined in a closed loop
<egg|work|egg>
!wpn Iskierka
* Qboid
gives Iskierka a xenon sturgeon
<APlayer>
Closed loop?
<APlayer>
!wpn egg
* Qboid
gives egg a fried foil
<Iskierka>
presumably you're trying to prevent it flying off so you can actually make meaningful measurements
<Qboid>
UmbralRaptor: convert 1 GeV (gigaelectronvolt) to kelvins: GeV (gigaelectronvolts) and K (kelvins) are not compatible.
<UmbralRaptor>
…
<UmbralRaptor>
!tell APlayer to not actually answer your question, a plasma hot enough to be >> 1 GeV per nucleon would be >> 1e12 K, and you'd get fun things like photodisintegration. I suspect that an accelerator's storage ring could in principle work?
<Qboid>
UmbralRaptor: I'll redirect this as soon as they are around.
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<Ellied>
.tell APlayer that sort of thing is easily observed with muons. They have a rest half-life of 2.2 µs, but the ones coming down out of the sky from cosmic ray interactions last much longer than that since they're moving so fast.
<Ellied>
dammit, wrong char
<UmbralRaptor>
"Students - Expect to receive an email to get a vision exam. SInce we have a laser in the lab, apparently this is required. Also, we will be getting safety glasses."
<Ellied>
ack
<UmbralRaptor>
Incidentally, I have to walk past the optical bench to get to my office. >_>
<Ellied>
what wavelength is the laser?
<UmbralRaptor>
Optical I think? It's in this armored box that obscures some signage.
<UmbralRaptor>
It has a key based lockout, but I'm not sure quite where it is in the class III to IV range.
<kmath>
<pcsegal> i saw a thread about this bizarre racist dingus tweet, then i looked at the replies to the original and it plays so… https://t.co/J3k1BNyvWE
<UmbralRaptor>
Hah
<bofh>
LOL
<bofh>
also *wow* at the Alex Parker tweet. fuck publishers.
<APlayer>
What's the Alex Parker tweet about? Not sure I understood that...
<Qboid>
APlayer: UmbralRaptor left a message for you in #kspacademia [18.10.2017 14:00:56]: "to not actually answer your question, a plasma hot enough to be >> 1 GeV per nucleon would be >> 1e12 K, and you'd get fun things like photodisintegration. I suspect that an accelerator's storage ring could in principle work?"
<Qboid>
APlayer: Ellied left a message for you in Private [18.10.2017 14:06:58]: "that sort of thing is easily observed with muons. They have a rest half-life of 2.2 µs, but the ones coming down out of the sky from cosmic ray interactions last much longer than that since they're moving so fast."
<APlayer>
Ah, nice stuff!
<UmbralRaptor>
APlayer: He doesn't have access to a paper, and is asking twitter for help getting it.
<APlayer>
Also, how the hell is research supposed to work if universities don't buy access to papers for their researchers?
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<UmbralRaptor>
Open Access.
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<UmbralRaptor>
Look at PLOS and Arχiv for examples.
<APlayer>
And also, how the hell does research work at all in our current pay-to-read world? I mean, that's not really how it works, is it?
<UmbralRaptor>
Some libraries spend large fortunes.
<APlayer>
And not everyone uses sci-hub, do they?
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<UmbralRaptor>
Not *everyone*, but at this point sci-hub is the most successful open access initiative.
<bofh>
^
<APlayer>
Humm, okay
<Ellied>
at my well-funded private university, students can request a paywalled paper be ordered by the library and made available there.
<bofh>
(also I find that the bulk of people so far that don't use it is due to not knowing about it, I routinely get thanked for showing people it's a thing)
<APlayer>
Ah, nice!
<APlayer>
(Thanks, bofh, for showing me it's a thing!)
<bofh>
(Heh, thank whitequark, in that case)
<APlayer>
That may actually have changed the science-y part of my life :D
<APlayer>
Was it whitequark? Well, then, thanks whitequark
<APlayer>
And thanks bofh anyway, fo spreading this amazing gem
<bofh>
UmbralRaptor: and they really are *fortunes*, it's honestly absurd.
<APlayer>
Knowledge is the treasure of mankind, and requesting money to spread it is really screwed up, IMHO
<UmbralRaptor>
Astronomy and particle physics have gone fairly open access with ArXiv, and people like Michael Eisen have tried to do so in other fields (PLOS, bioarxiv), but progress is uneven.
<APlayer>
But not like there is likely to be a petition for a law protecting knowledge of that sort, I am afraid. The people who regularly need papers are less than the people that are concerned about, say, economic issues
<Ellied>
I don't think that's true, lots of scientists care a lot about that sort of thing
<UmbralRaptor>
Also, lots of the research is government funded, so copyrights are highly limited.
<APlayer>
Yes, but not many people are scientists :P
<FluffyFoxeh>
Is sci-hub legal?
<APlayer>
Not many scientists means that not many would fight, compared to how many are needed to actually achieve something
<UmbralRaptor>
PubMed, etc are a big deal for nonscientists.
<Ellied>
FluffyFoxeh: No
<FluffyFoxeh>
damn it
<FluffyFoxeh>
:p
<APlayer>
^ my first thought
<FluffyFoxeh>
not that I particularly care because the laws in question may need a reform, but it places it on shaky ground
<Ellied>
copyright is a molten tire fire, and a good bit of it isn't even enforceable in any meaningful way
<FluffyFoxeh>
too much corporate lobbying
<egg|work|egg>
!wpn whitequark
* Qboid
gives whitequark a stepper cyclotron
<APlayer>
But imagine what happened if the copyright was suddenly cancelled
<egg|work|egg>
!wpn Ellied
* Qboid
gives Ellied an offensive eidolon which strongly resembles a 2N7000
<egg|work|egg>
!wpn UmbralRaptor
* Qboid
gives UmbralRaptor an omega Laplacian which vaguely resembles a mass
<egg|work|egg>
!wpn bofh
* Qboid
gives bofh an expression
<Ellied>
also, AIUI it's less illegal to download papers from scihub than it is to, yknow, operate scihub
<Ellied>
I think copyright law tends to criminalize the distribution rather than the consumption of such things
* UmbralRaptor
throws the laplacian into an equation of motion.
<APlayer>
"less illegal"
<FluffyFoxeh>
I've done things way "more illegal" than that as far as copyright law so whatever
<APlayer>
"Perhaps they will only cut off my right hand and let me keep my head"
<bofh>
UmbralRaptor: LOL
<Ellied>
I mean "less illegal" as in "unless you do something that really directly irritates the authorities they won't be bothered to care"
<FluffyFoxeh>
yeah
<APlayer>
I don't think copyright in general sucks, seriously
<APlayer>
I mean, spending half your life to write a book, it makes sense to sell it and prevent people from just re-selling copies cheaper
<APlayer>
But research papers are not that
<bofh>
Perhaps. For 14 years, sure. For whatever the term limit is now? Uhm no.
<Ellied>
the core idea, sure, but it's been twisted into almost unrecognizability from that by now
<APlayer>
A scientist does not do research to earn money for it. That's not what people do science for
<egg|work|egg>
UmbralRaptor: did you get the catpics
<bofh>
Also it's worth noting with research papers that virtually *EVERY* *JOURNAL* *REQUIRES* *YOU* *TO* *SIGN* *AWAY* *YOUR* *COPYRIGHT* *TO* *THEM*.
<Ellied>
I don't think people write books primarily for money
<bofh>
you do not get any money from submitting articles to a journal.
<UmbralRaptor>
Anything you write after ~age 5-10 will be under copyright for longer while you are dead than alive.
<Ellied>
corporate interests have made sure that the current institution of copyright screws over everyone except corporations, basically
<FluffyFoxeh>
Copyright as a concept is reasonable. But the situation where we've got Disney globally increasing copyright terms every time Mickey Mouse is about to expire
<FluffyFoxeh>
Is ridiculous
<APlayer>
No, but a scientist is happy to spread knowledge, I don't see a case where they would not be. An author may or may not want to be the only one distributing their book, however
<bofh>
back when I still did a lot of review for Phys Rev B (ie before I got pissed off at APS irreparably), guess how much I got for reviewing articles (a task that often took an afternoon at the least and multiple days in some cases since I wanted to do it properly)? A: bupkis.
<UmbralRaptor>
(and that ignores the 90-120 year work for hire bits)
<bofh>
it's utterly insane.
<bofh>
I liked doing it, honestly, but the fact that journals essentially print money via the free labour of others is just... can this cartel please die fasteR?
<Ellied>
yeah that can go directly to hell
<APlayer>
Agreed
<egg|work|egg>
UmbralRaptor: bofh: silly idea of the day: approving changes with ????
<Iskierka>
yay for scihub?
<egg|work|egg>
!u ????
<Qboid>
U+121FB CUNEIFORM SIGN LU (?)
<Qboid>
U+12116 CUNEIFORM SIGN GU (?)
<Qboid>
U+12305 CUNEIFORM SIGN TU (?)
<Qboid>
U+1222A CUNEIFORM SIGN MI (?)
<bofh>
egg|work|egg: YES
<FluffyFoxeh>
boxes
* Iskierka
glares at tu
<Ellied>
wow, all of those render on my end, they just take up like four positions in my terminal
<FluffyFoxeh>
they render on my desktop but not my phone
<egg|work|egg>
bofh: I told that to a colleague (we had a lengthy conversation about ancient writing systems) who had basically the same reaction :D
<Ellied>
my phone barely renders anything off the BMP these days
* APlayer
is the only poor sod whose computer freaks out with tofus on the slightest occasion
<egg|work|egg>
bofh: I am good at nerd sniping my colleagues
<bofh>
egg|work|egg: what's that Sumerogram mean anyhow?
<APlayer>
egg: On an infinite grid of 1-Ohm resistors, what is the resistance between two points a chess knight move away from each other?
<APlayer>
:P
<Ellied>
that problem would be right at home in the undergrad IIT curriculum
<Ellied>
that's what they teach you in EE instead of anything interesting about transistors
<egg|work|egg>
bofh: I have no idea, I was just going with the phonetic values
<APlayer>
Ellied: That's an xkcd, for reference
<Ellied>
I know
<APlayer>
Okay then
<APlayer>
Just get it to that department and see what they say :D
<bofh>
egg|work|egg: so was I, hence the laughter :P
<bofh>
egg|work|egg: but now I'm wondering if that does form a valid Sumerogram.
<Iskierka>
well here EE is electrical engineering and the usual distinction WOULD be that electrical means no transistors
<APlayer>
Oh well. I've got to go, be back soon
<Ellied>
Iskierka: wait, but how is that even useful
<bofh>
^
<Iskierka>
usually power distribution stuff is their purview
<Ellied>
what's the point of learning electronics anything if you aren't going to cover, like, the basic building block of modern life
<Iskierka>
though I don't actually know anyone doing just EE, they do EEE electrical and electronic
<egg|work|egg>
bofh: sheep - ? - enter/bring in - night
<Iskierka>
which is still mainly distribution but they do have some logic gate & similar stuff
<bofh>
egg|work|egg: that almost sounds comprehensible, almost, rofl.
<egg|work|egg>
s/\?/flax\/thread\/string
<Qboid>
egg|work|egg meant to say: bofh: sheep - flax/thread/string - enter/bring in - night
<Iskierka>
I'm not sure how much they'd do though, because we're doing hardware design (in current case, implementing a 16-bit version of ARM7) in CS
<Ellied>
as far as I can tell, at IIT you do AC/DC network analysis and logic (using FPGAs, because they're tired of buying the 74 series) for three straight years, pausing occasionally for offhand mentions of the existence of op amps and transistors but never actually using them. Presumably that changes in the fourth year, but I guess I don't know.
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<Ellied>
and of course, when you DO cover transistors, it's presumably just "ebers-moll, gtfo"
<Ellied>
I was in experimental physics class with a EE student in the IIT program, doing IV curves on a bunch of different components. Me: "So this is a thyristor, it-" him [dismissively]: "well yeah, I know what a thyristor is." Me: "Okay, great, so presumably I don't need to explain MOSFETs or JFETs either?" Him: "er, wait, we haven't done MOSFETs. and what's a JFET?"
<egg|work|egg>
bofh: sheep enter straight into the night?
<Ellied>
I mean I guess if you're just wanting to spend your life doing power grid things for $$$ and don't care about the fiddling small stuff, maybe you're better off not bothering but that still throws me for a loop
<SnoopJeDi>
there's always another black box to crack open
<Ellied>
I'll always agree with you there
* SnoopJeDi
glances at "political systems are inherently unvaluable" meme in STEM
<Iskierka>
... unvaluable?
<SnoopJeDi>
"not valuable" I suppose. I haven't had enough coffee.
<UmbralRaptor>
… what?
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<SnoopJeDi>
just poking fun at the unfortunate idea that people entertain about bureaucracy being purely parasitic and if only the red tape would get out of the way we could all be Claude Shannon
<UmbralRaptor>
I'm going to preemptively blame neoreactionaries.
<bofh>
egg|work|egg: nice
<SnoopJeDi>
(although aspiring to be Claude Shannon might not be the best goal)
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<Ellied>
I'll believe that, listening to the Argonne beamline scientists grouse about the tightened electrical regulations following a couple of serious accidents
<Iskierka>
the only uses of unvaluable wiktionary can cite are 16th-18th century and it's naturally both of the conflicting ones
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<bofh>
or, like, people complaining about chemical safety regulations that came up due to serious injury or death.
<Ellied>
my friend who works there now told me that at least one person got killed in an electrical accident just weeks after my time there, so... I'm gonna go ahead and not complain about safety regulations
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<SnoopJeDi>
yea, ES&H is a perfect example
<bofh>
(that reminds me, at least the lab that I often work in stopped using the safety shower as a coat rack last winter)
<Iskierka>
"what do you mean I can't bathe in nitric acid?"
<UmbralRaptor>
Safety regulations are written in blood.
<SnoopJeDi>
but I mean even much less exciting things like expense reporting
<bofh>
^
<SnoopJeDi>
like yea, nobody on the face of the planet enjoys expense reports, but turns out we hate the situation without them even more?
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<Iskierka>
"who bought $3000 of candles"
<SnoopJeDi>
none of which means to suggest that administration is purely boon. admin is the worst
<SnoopJeDi>
(our dept got slapped with $700k of admin fees this year because admin wants to make dat money)
<Ellied>
I imagine ANL beamline scientists are particularly spoiled in that department because they're only working with the funding of the Department of Fucking Energy
<SnoopJeDi>
((what better way than to pave the way to liquidating a world-class department?))
<bofh>
Ellied: that's so disorienting since when I took a semiconducting devices course in my undergrad we *started* out with MOSFETs and moved onto BJTs afterwards. It's by far the saner and more natural way of doing things.
<Iskierka>
... admin is separate enough that they can take money from the same place and have a meaningful change?
<SnoopJeDi>
yea national labs are an interesting case study in this sort of thing
<bofh>
like to explain an Si BJT you need to explain quantum tunnelling in the B-E junction. to explain a JFET you need to explain... how a garden hose works.
<SnoopJeDi>
Iskierka, yea this is universally the case. Their books are separate from our books.
<SnoopJeDi>
I.e. STEM grad students may not be paying tuition to attend in the US, but rest assured that the waiver is not cost-free, admin is still having their palms greased.
<Ellied>
bofh: I totally agree. I still don't really understand how BJTs actually work; MOSFETs and JFETs make total sense.
<Iskierka>
I am unclear on the precise distinction between MOSFET and JFET (unless this is N/P distinction when ordering transistors?) but I follow enough that I could figure out how to use them if we worked on the transistor level
<Ellied>
The favorite institutional punching bag around here is the IT department. They don't allow even high-ranking faculty to have much freedom over their own work machines and they charge departments full market price for any services.
<SnoopJeDi>
Ellied, probably ours too. We aren't allowed to subnet.
<bofh>
Iskierka: the distinction is pretty big, they're structurally completely different.
<Ellied>
oh, that's right out here (I do it anyway, shh)
<Iskierka>
I mean from a practical side, though
<SnoopJeDi>
I could probably hit our lab's cluster from where I sit with a good paper airplane, and yet...if central goes down, I can't access it.
<Ellied>
Iskierka: JFETs are generally used as linear devices, e.g. in amplifiers, while MOSFETs are better suited to switching
<Ellied>
that's the main thing you hear
<SnoopJeDi>
(technically we *are* allowed to subnet...if we buy insanely marked up such-and-such switches and other misc. equipment directly from them)
<Iskierka>
I can see that structural diagrams are different, but I leave that to the side as I won't need to build one any time soon
<Iskierka>
That distinction makes sense
<Ellied>
also, JFETs tend to be more delicate and MOSFETs more beefy
<Iskierka>
wouldn't that make MOSFETs better for big amplifiers?
<SnoopJeDi>
our department is lucky enough to run its own internal IT, but the guy who's in charge is feeling the squeeze, they want his job gone
<Ellied>
well, not really, since their on/off cutoff is a lot sharper, but it can be done
<Ellied>
the real reason MOSFETs are good with large current is that they have extremely low on-state resistance, so if you use them as linear current-limiting devices, you lose that advantage
<Iskierka>
this makes sense and is very easy to follow.
<Ellied>
the CS department put in an awesome new makerspace down in the loop campus. Probably more total floor space than the entire physics department. When they moved in, it had one (1) ethernet jack for the whole room. Asked IT if they could put in more: "No." Asked IT if they could set up a special-purpose router just to operate the 3D printers: "No, and if you try, we'll have your head."
<Iskierka>
...
<Ellied>
they don't inspect us very often in physics, so we just tend to do what we please with our own personal computers and ethernet switches
<SnoopJeDi>
every once in a bluemoon some idiot in this building will take one of our static IPs and make a computer completely unusable until we go through all the red tape to get central IT to literally shut off the offending port
<SnoopJeDi>
(reservations don't real, apparently)
<bofh>
SnoopJeDi: yep, happens here too.
<Ellied>
oh yeah, same here
<SnoopJeDi>
I do almost everything on my laptop so at least there's an AP, but that thing is on the fritz a good 15% of the time
<Iskierka>
tbf here it's unclear what's even going on with the IT department. Used to have a good one maintaining everything well, then they wanted to buy someone else's services, made all those staff redundant, changed their mind, and are just trying to string things together
<SnoopJeDi>
heh, started this by saying "bureaucracy is probably a good thing" but that doesn't disqualify me from the belly-aching :)
<Iskierka>
which has ended up now with the printer system alone being, from what I'm told, $40k per year to an external company as they don't have the staff to create an internal system
<Ellied>
in the loop, on the other hand, the IT people showed up to the place after that exchange and put their fingers in everyone's business, even going so far as to tell the makerspace people how to manage the consumable goods used for various projects (none of which had the *slightest* thing to do with networking) in the place. The main CS guy in charge of the space was hopping mad.
<SnoopJeDi>
If I were running the makerspace I'd probably just shrug and make an isolated network, unless there was a need for authenticating to use the devices or something?
<Ellied>
"you can't have these supplies just out in the open like this, you need to have them locked away under more control"
<Ellied>
main guy said if he'd been around for that (he wasn't), he would have told them to fuck off.
<Iskierka>
should just say "You provide networking, so that we can access information using technology. We run this lab. You are only supposed to be putting in more ethernet ports."
APlayer has joined #kspacademia
<Ellied>
they also send out this big email every year "reminding students of copyright law" which uses the most vague wording I have ever seen
<Iskierka>
... for what purpose? What are they telling students to not do?
<SnoopJeDi>
probably just establishing the CYA case in the event that they need a system member to take the fall
<Ellied>
I can't tell. It would fit if they were trying to scare students into not downloading PDF textbooks or something but aren't legally allowed to lie and say that doing so is actually illegal?
<SnoopJeDi>
"we told you!"
<Ellied>
probably
<SnoopJeDi>
could be anything from ^ to "oh you came up with that idea at work. that's our idea."
<Iskierka>
are pdf textbooks not technically illegal?
<SnoopJeDi>
It Depends™
* Iskierka
presumed they were but it was fruitless to try fight
<Ellied>
I'm pretty sure it's illegal to share them but not just to possess them
<SnoopJeDi>
Yea, distribution is generally the trigger clause on IP infringement for anything you'd care about
<SnoopJeDi>
i.e. it might be illegal to own it but nobody's likely to care enough to bring that to a court
<SnoopJeDi>
set up a SciHub though and now you're threatening a money-maker
<Ellied>
the email does list steps to report copyright infringement, but specifies that in order to do so you must be the copyright holder
<Ellied>
so it *kinda sounds like* it's asking you to rat out your classmates for offering to share PDFs with you but if you look at what it actually says it is not actually doing that
<kmath>
<eggleroy> ? Chasles, the new release of Principia, is out, symplectically integrating jumping Kerbals. https://t.co/6EH9Mkza8q
<Iskierka>
I mean, I'm not 100% sure because I never bothered to find/remember the guy's name, but he got mentioned in a thread and what I presume is his twitter bio claims it's pro diversity
<Iskierka>
but then he also claims that conservatives innovate in a recent tweet
<Iskierka>
like ... that's an antonym
<Iskierka>
he pretty much seems to be proving fishhook theory, at least for his own case. "centrist" but VERY closely tied to the right
<UmbralRaptor>
Also, watch out for the phrase "human biodiversity." It's generally (always?) scientific racism with new terminology.
<UmbralRaptor>
egg: MOON!
<Iskierka>
... what contexts is that getting used in?
<UmbralRaptor>
Iskierka: I never looked that closely into Damore's writings, but that seems to be something that comes up in these sorts of places?
<Iskierka>
I'm more wondering how they're twisting "biodiversity" to mean a negative thing
<UmbralRaptor>
Reasons
<egg>
!wpn UmbralRaptor
* Qboid
gives UmbralRaptor a commutative group/lemma hybrid
<egg>
!wpn Iskierka
* Qboid
gives Iskierka a spiral genome
<UmbralRaptor>
!wpn egg
* Qboid
gives egg an Agile δ-function
<egg>
!wpn Chasles
* Qboid
gives Chasles a trombone-like warhead
<egg>
UmbralRaptor: hm should I try to plot the distribution of those cats along my street
<UmbralRaptor>
Yes.
<UmbralRaptor>
import catterplot
APlayer has quit [Ping timeout: 383 seconds]
<egg>
UmbralRaptor: so I have two cats with > 3 identified observations, the ANBOcat lookalike (blue) and the tricolour cat (yellow) https://i.imgur.com/15r1UfO.png
<egg>
(cat density (cat/m) over the street (graduated in m from home))
<egg>
bofh: cats ^
<UmbralRaptor>
I'm bothered by the continuous nature of that plot.
<egg>
(only 4 and 5 data points so yeah continuous plots are silly)
<egg>
but then it's clearly continuous, it's the cat's wavefunction,
* egg
unitarily evolves a cat
<egg>
UmbralRaptor: wait no I got the colours backward, the anbocat lookalike is yellow on this plot
<egg>
!wpn UmbralRaptor
* Qboid
gives UmbralRaptor an overclocked DDOS
<egg>
!wpn bofh
* Qboid
gives bofh an equatorial equivalency
<egg>
!wpn whitequark
* Qboid
gives whitequark a term
<awang>
!wpn -add:wpn tern
<Qboid>
awang: Weapon added!
<bofh>
ooooooh, cats :3
<bofh>
why is tricolour cat in the EUV?
<egg>
EUV?
<bofh>
ohhh the x-axis isn't EM wave wavelength. oops.
<bofh>
admittedly, "-100nm" wouldn't make any damn sense
<egg>
bofh: yeah I inspect the cats with a spectrophotometer
<egg>
I think they would object
<egg>
!wpn -add:wpn spectrophotometer
<Qboid>
egg: Weapon already added!
<egg>
... of course
<egg>
!wpn Fiora
* Qboid
gives Fiora a Conway antidisambiguated NaN
<bofh>
Yep, tho photometric data on cats *would* be interesting.
<bofh>
LOL
<bofh>
!wpn egg
* Qboid
gives egg a hacked ghost with a partisan attachment
<Qboid>
[#1413] title: Some stock bodies have peaks that are higher than the time warp limit | For example, Minmus highest points are around 5-6 km, but the timewarp limit is 3 km, making landing at these locations impossible with Principia.... | https://github.com/mockingbirdnest/principia/issues/1413
<egg>
argh forgot to mention nanomage and lyttol
<bofh>
lyttol?
<egg>
bofh: two users who also declared impact
<egg>
bofh: blarg, I got spam from sanskrit wikipedia because I visited it for the first time while logged in
<egg>
bofh: so besides the fact that I got a mail in sanskrit, it ends with "To control which emails we send you, अपनी पसंद देखें."
<egg>
um
<egg>
language salad \o/
<egg>
wait no that's a mail in hindi; I also got a notification on wikipedia for having visited a sanskrit page, but no mail
* Qboid
gives UmbralRaptor an expressed divergence
<egg>
!wpn rqou
* Qboid
gives rqou a snub clutter
<rqou>
!wpn egg
* Qboid
gives egg a paramagnetic suitcase
<rqou>
that sounds fun :P
<egg>
UmbralRaptor: bofh: using 22 cat observations together (the previous had only 5 for one cat and 4 for the other, because identifying the cats is tricky at times), https://i.imgur.com/hmRyUfu.png
<UmbralRaptor>
egg: cats exhibit a bimodal distribution?
<egg>
hmm, seems so
<egg>
bofh: any ideas why the cats could be bimodal
<bofh>
huh.
<bofh>
(well first off I'm not entirely sure it's bimodal, the first has two distinct peaks spaced apart too)
<bofh>
that being said, hmm...
<egg>
(yeah, the data is really sparse so yaknow)
<UmbralRaptor>
Spiral cats and elliptical cats.
<egg>
hmm, there's a stretch without sidewalk which overlaps with that void, but the void does contain some sidewalk and the sidewalkless part does have some cat observations further down...
<bofh>
(point)
<UmbralRaptor>
Can we classify these as type I and type II cats?
<UmbralRaptor>
<_<
<egg>
that sounds like a good idea
<egg>
because while there are cats that I have trouble identifying or differentiating, the type I and type II cats are easy to split observationally too
<egg>
UmbralRaptor: but which one are the type I and which are the type II
<UmbralRaptor>
egg: let's do this like stellar populations: the ones close to your house are type I.
<egg>
sounds good
<egg>
UmbralRaptor: so depending on tricky deduplication there are between 4 and 6 type I cats, and between 2 and 4 type II cats.