raptop 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> egg|nomz|egg: generally if your eyes are dewing over, that's not the weather. | <ferram4> I shall beat my problems to death with an engineer. | We can haz pdf
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<SnoopJeDi>
...huh. I've just gotten back from a colloquium with a LOT of really convincing and encouraging things to say about ITER/fusion at large.
<SnoopJeDi>
and a lot of really fun geometrical arguments about things like turbulence in the blanket-plasma boundary layer and how that constrains tenable systems
<SnoopJeDi>
(spoiler alert: yes, fluid dynamics is still really really hard but at least you can kinda brute-force it now if you've got $∞ to burn")
* egg
stares at recurrent orbits
<egg>
bofh: halp recurrent orbits are confusing
<bofh>
recurrent orbits?
<egg>
repeat ground track
<egg>
capderou calls them recurrent
<egg>
well, he calls them phasées, his translator calls them recurrent
<galois>
title: GregroxMun on Twitter: "I hope you enjoyed this look at speculative semi-realistic #spacecraft #astrophotography using @KerbalSpaceP and #WhirligigWorld."
<galois>
title: YE Quanzhi on Twitter: "Weird object ZTF02Rm found by @ztfsurvey last night. Current nominal orbit has q=0.15 au, a=0.66 au. H=22.5 suggests a size of perhaps 100-m. But most intriguingly, it seems to have a rotational period (?) of 10-sec or so. Did someone lose a spacecraft/booster out there?… https://t.co/yPTgSIi4TV"
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<egg|train|egg>
bofh: meow
* egg|train|egg
meows at whitequark
* egg|train|egg
meows at UmbralRaptop
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* egg|train|egg_
stares at ground track repeat cycles in confusion
<egg|train|egg_>
why do they repeat on an integral number of mean days, and how does that generalize to, say, a tidally locked planet?
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* egg|train|egg
stares at the use of subscript o to denote integers
<egg|train|egg>
bofh: is that hungarian but for mathematical notation
<egg|train|egg>
no idea why o even
<egg|train|egg>
ah nevermind, it's not an integral number of mean days eggscept in the heliosynchronous case
<egg|train|egg>
bofh: meow
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<egg|cell|egg>
!seen bofh
<galois>
egg|cell|egg: I last saw bofh at 2019-02-01 - 00:27:06 in here, saying recurrent orbits?
* UmbralRaptop
☕ sleep
<egg|cell|egg>
UmbralRaptor: meow
* UmbralRaptop
scritches egg
<UmbralRaptop>
"See the electronic edition of the PASP for a color version of this figure."
<UmbralRaptop>
I think you could have dropped that part of the caption from the electronic version, authors
<bofh>
10:34:44 * egg|train|egg stares at the use of subscript o to denote integers
<bofh>
10:35:04 < egg|train|egg> bofh: is that hungarian but for mathematical notation
<bofh>
no idée, I've literally never seen that notation before?
<egg|cell|egg>
This book has eggscentric notation at times
<bofh>
what book?
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<egg|cell|egg>
Bofh: satellites: de Kepler au GPS
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<bofh>
plz send PDF
<bofh>
(I mean I can libgen it, but I want the one with the shonky OCR)
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<egg|cell|egg>
Meow
<UmbralRaptop>
caw
<UmbralRaptop>
"Eggsploring magnetism in quantum materials using neutron scattering techniques" guess I'm not going to understand much of this week's colloquium.
<SnoopJeDi>
could do a lot worse than that title
<UmbralRaptop>
Next week: "Multiscale quantum-classical micromagnetics: Fundamentals and applications in spintronics"
<SnoopJeDi>
now *that* is a gamble
<SnoopJeDi>
locally, spintronics has always been "wow, this is really interesting and the speaker is doing a great job keeping this colloquial" or "I wonder if this is the same slide deck they used for the CM seminar"
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* egg|anbo|egg
has been meowed at
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<UmbralRaptop>
SnoopJeDi: The answer to the second one seems to usually be "yes, and really it's a CM seminar that they're letting the astro people sit in on"
<SnoopJeDi>
mm, CM as a field is rather...dense? :)
<SnoopJeDi>
!or colloquium level or seminar level
<galois>
SnoopJeDi: seminar level
<SnoopJeDi>
good bot
<galois>
=]
<UmbralRaptop>
!botsnack
<UmbralRaptop>
!help
<galois>
UmbralRaptop: I'm sending you a list of my commands in a private message!
<egg|anbo|egg>
UmbralRaptop: meow
<egg|anbo|egg>
UmbralRaptop: bofh: 'As part of the 27th General Assembly of the IUGG that will be held in Montreal, Canada during 08-18 July 2019 there will be an IAG Symposium on "Monitoring and Understanding the Dynamic Earth with Geodetic Observations".'
<galois>
title: fangmeli on Twitter: "cool how the corners of laptops evolved to feel good against cats cheeks thereby aiding pollination"
<UmbralRaptop>
So if I leave my laptops around cats, additional laptops will sprout?
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<egg|laptop|egg>
UmbralRaptop: probably
<bofh>
egg|laptop|egg: s/eagle\ enclosure/chàtiere\ dans\ les\ fontis/, but yes.
<egg|cell|egg>
Why was escape the spaces
<bofh>
habit
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<APlayer>
bofh: s/, but yes/,\ but yes/
<galois>
APlayer thinks bofh meant to say: egg|laptop|egg: s/eagle\ enclosure/chàtiere\ dans\ les\ fontis/,\ but yes.
<APlayer>
Argh, I missed another one
<egg|cell|egg>
Bofh: should I eat
<APlayer>
egg: Do you eat eggs?
<bofh>
APlayer: so anything after the last / is not part of the regex >_>
<bofh>
egg|cell|egg: I would recommend it, but I guess that depends on what's in the fridge
<bofh>
17:24:28 <@UmbralRaptop> SnoopJeDi: The answer to the second one seems to usually be "yes, and really it's a CM seminar that they're letting the astro people sit in on"
<bofh>
I mean y'all are always welcome, just some of it might not make any sense to y'all :P
* SnoopJeDi
nods
<SnoopJeDi>
I've been to a few of ours
<SnoopJeDi>
Tried to do due diligence and attend across the board to sample each field's culture
<UmbralRaptop>
bofh: The high Tc superconductivity one last week was nifty
<bofh>
UmbralRaptop: who was the speaker, if you recall?
<bofh>
or eggsact topic
<egg|cell|egg>
Bofh: in the fridge, nothing
<egg|cell|egg>
Well I brought 6 eggs
<bofh>
egg|anbo|egg: I might be in Canada in July, not sure yet. If I am I'll prolly crash the IAG Symposium. :P
<egg|cell|egg>
In the freezer, a lot less butter than I expected
<UmbralRaptop>
Igor Mazin
<bofh>
eggs! are tasty
<bofh>
are you doing groceries in [REDACTED] tomorrow?
* UmbralRaptop
half expects bofh to pull out a paper by Mazin and Ginzburg now.
<galois>
title: [0708.1947] Vitaly Ginzburg and High Temperature Superconductivity: Personal Reminiscences
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<UmbralRaptop>
Mostly MgB2, and Lanathanum/Sulfur/Yttrium hydrides >_>
<UmbralRaptop>
hrm
<egg|anbo|egg>
bofh: meh the weather is shit, not sure
* bofh
checks meteo
<bofh>
fog, slight rain and a temperature strictly > 0degC
<bofh>
meh :P
<egg|laptop|egg>
bofh: well, walking 5 km in the rain does not sound fun
<bofh>
egg|laptop|egg: yes but it beats walking 5km in windchills of -33degC
<bofh>
which I *almost* did but NOPEd out of
<egg|laptop|egg>
my swedish colleague is eggstremely weirded out by americans always reporting windchill-corrected temperatures
<SnoopJeDi>
"corrected"
<bofh>
why's that? when it's below 0degC and your wind is, like, 30km/h with gusts to 50km/h *or worse*, that's very significant
<bofh>
does sweden not, like, get wind or something?
<SnoopJeDi>
it makes more sense to me to report those two quantities as...two quantities
<egg|laptop|egg>
bofh: it gets wind, but what SnoopJeDi says
<SnoopJeDi>
with the possible admission of those two + "feels like," which I find acceptable if not extremely imprecise
<egg|laptop|egg>
they just know that it's cold, and that there's wind
<SnoopJeDi>
I have the luxury of a fairly poorly insulated apartment
<bofh>
SnoopJeDi: I mean for meteorological purposes, agreed, but for purposes of going outside, most people have a bad mental mapping I find.
<SnoopJeDi>
so I just gauge the day based on how it feels when I wake up :P
<SnoopJeDi>
bofh, yea the interface between "we are professional weather people" and "do I need a jacket today?" sucks badly
<egg|laptop|egg>
bofh: apparently swedes are pretty good at having a feeling for that
<egg|laptop|egg>
bofh: maybe because swedish weather
<bofh>
like I do prefer getting both, since like -30degC with <5km/h winds is pleasant and -5degC with ~35km/h winds is "yeah, I'm not stepping outside, fuck that".
<SnoopJeDi>
oh, y'all might appreciate this mildly interesting heat problem
<egg|laptop|egg>
bofh: pretty sure if you go out in northern sweden when it's 0 deg C with a ton of wind dressed as if there were no wind at the same temperature, you learn fast :-p
<SnoopJeDi>
"how cold must the air temp be in order to freeze eyeballs in a *living* human"
<egg|laptop|egg>
(or s/0/-something/ as appropriate depending on the season)
<SnoopJeDi>
intuitively, "extremely" but it seems like you could get a great guess with a rectangular (~cylindrical) heat equation
<SnoopJeDi>
domain of water, body heat applied on 3 edges, air temp reservoir on the 4th
<bofh>
but yeah I guess a lot of it is America is a big country and large parts of it have no idée how cold temps work, really.
<bofh>
or at least *usually* don't, at least not for like, the absurd-cold ones.
<egg|laptop|egg>
hm the cat is sparkly when petted
<egg|laptop|egg>
it's usually not dry here
<UmbralRaptop>
anbocations?
<SnoopJeDi>
bofh, and the other meteorological quantities are going to vary
<SnoopJeDi>
not sure how much texture there is in smaller nations, but I would assume it's substantially less because geophysics?
<SnoopJeDi>
shoot, we have drastically different climates in just this *state* :P
<SnoopJeDi>
(happy National Texas Day?)
<egg|laptop|egg>
not sure there necessarily is a reason other than "someone thought it was a good idea to factor this into the temperature and now everyone is used to it"
<SnoopJeDi>
well I agree with bofh's reasoning that the average people isn't interested in learning to consider multiple quantities (regardless of how one feels about that)
<egg|laptop|egg>
you'll easily get lots of variability within e.g. mediterranean countries with mountains
<SnoopJeDi>
or perhaps the average *American* isn't
<SnoopJeDi>
we have a uhhhhhhh very mottled meteorological history
* SnoopJeDi
glances at Galveston
<egg|laptop|egg>
well, it's not directly driven by the interest of those who listen to the forecast
<SnoopJeDi>
perhaps that's what we disagree over
<egg|laptop|egg>
i'm not sure we're disagreeing over anything
<SnoopJeDi>
well, I disagree that it's not "directly driven"
<egg|laptop|egg>
those who listen to the forecast are not those who write it
<SnoopJeDi>
it's the only reason I can think of to include "feels like"
<egg|laptop|egg>
there is an indirection
<SnoopJeDi>
oh, sure
<SnoopJeDi>
it's indirect in that sense that viewership is the linkage
<egg|laptop|egg>
the person who comes up with "feels like" makes a hypothesis about what those for whom they write want to read
<SnoopJeDi>
but this is the reality of popular weather
<SnoopJeDi>
(if it weren't, we'd get confidence intervals?)
<galois>
title: Robin Leroy on Twitter: "(I would say its semantics with respect to, e.g., arrays being a thing, explicit aliasing¹, and formal parameter modes² make it a nice alternative for those cases where FORTRAN has an edge on the usual suspects.)―¹ https://t.co/K2rwP2tw0n.²https://t.co/zg0BhrQ78z.…https://t.co/XCcEmdu5vo"
<bofh>
egg|laptop|egg: I am suddenly reminded of how I accidentally into a side research project on Gröbner basis preconditioning that I actually do need to spend time on this weekend. >_<
<egg|laptop|egg>
. . .
<bofh>
egg|laptop|egg: I took too many stimulants one day and per peroxycarbonate's suggestion emailed Jean-Charles Faugère some questions I had and I accidentally hit an active research topic that his group at INRIA just started looking at with them.
* bofh
shrugs
<egg|laptop|egg>
hm
<bofh>
look, after everything that happened last semester *that's* the thing you find weird? :P
<egg|laptop|egg>
bofh: I should try to do the same with the numerical analysis seminar in geneva
<egg|laptop|egg>
I'm not a moth though so that might be an issue
<egg|laptop|egg>
zzz
<bofh>
ehh, it's easy, you literally just walk in.
<bofh>
it's the setwise complement of Mordor
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<galois>
title: Dr. Moudhy Al-Rashid on Twitter: "The last datable cuneiform text is a fragmentary astronomical almanac from Uruk, now housed in the National Museum of Iraq.It is dated to 79/80 CE and includes observations of the moon, the zodiac, various planets, eclipses, and other astronomical phenomena… https://t.co/CEuzViUFPZ"