egg|nomz|egg 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.
<bofh> LOL
<UmbralRaptop> *111* brown dwarfs, a type of star that no one managed to get a real observation of until 1995.
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<bofh> UmbralRaptop: I'm still weirded out by brown dwarfs having Li7 fusion processes.
<bofh> like, wtf?
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<UmbralRaptop> Admittedly only the highest mass ones.
<UmbralRaptop> Blame it on the deuterium production step of the P-P chain being absurdly slow.
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<bofh> https://twitter.com/kazami395/status/1002388313947291648 I feel like this'll be appreciated by some here...
<kmath> <kazami395> Astron https://t.co/UIiIUClJtl
<bofh> UmbralRaptop: no, what I find remarkable is that Li7 exists in sufficient abundance to be meaningful fuel (also that something "only" ~65 Jupiter masses can initiate fusion, for that matter, but that's less odd).
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* UmbralRaptop is probably too used to it, please expand?
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<bofh> UmbralRaptop: Li7 seems like it should be an incredibly rare primordial nuclide, and brown dwarfs feel like they should've accreted esrly.
<bofh> early*
<bofh> OTOH "high-metallicity" stars apparently acquirex nearly all of their metal content at the start, not as a result of high-mass fusion, which is another result that is hard for my mind to come to terms with.
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<egg> !wpn bofh
* Qboid gives bofh a banal rocket
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<bofh> !wpn egg
* Qboid gives egg a conducting feline log
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<UmbralRaptop> !wpn -add:adj good
<Qboid> UmbralRaptop: Adjective already added!
<UmbralRaptop> !wpn -add:adj bad
<Qboid> UmbralRaptop: Adjective already added!
<UmbralRaptop> !wpn -add:wpn apple
<Qboid> UmbralRaptop: Weapon already added!
<bofh> !wpn -add:adj Alstroemeria
<Qboid> bofh: Adjective added!
<bofh> er, I suppose that should be a noun since it's actually a type of lily. oops >_>
<awang> !wpn -remove:adj Alstroemeria
<Qboid> awang: Adjective removed!
<awang> !wpn -add:wpn Alstroemeria
<Qboid> awang: Weapon added!
<egg> @#$%@#$%@#$ it's still not fixed stop telling us that it's fixed damn you https://developercommunity.visualstudio.com/content/problem/223715/moo.html
<egg> it's the third time they tell us it's fixed
<UmbralRaptop> egg: not sure if you're typing about visual studio or KSP.
<egg> msvc
<egg> does somebody know someone who works on msvc
<kmath> <johnregehr> dude come on... that's my computer, my glass of wine, you totally knew I was just getting up for two seconds https://t.co/YvKHUQZlDR
<UmbralRaptop> I'm not sure that that cat works on MSVC
<egg> maybe it should
* egg screams into the void
<awang> egg: Do you pick URL things for VS issue reports?
<awang> "moo.html" just seems so... eg
<egg> awang: I rewrote the URL, the number is what matters
<awang> egg: Also, I know the MSVC compiler people pop up pretty frequently on /r/cpp
<awang> Ah, didn't know the last part could be manipulated like that
<egg> it's mostly that I dislike long links, and then of course egg so moo :-p
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<awang> Fair enough
<awang> !moo
<egg> !wpn awang
* Qboid gives awang a slug Fermi-Dirac cow
<egg> appropriate
<awang> Heh
<egg> !wpn whitequark
* Qboid gives whitequark a forward plane chromatograph with a brioche attachment
<egg> awang: reporting bugs on reddit feels silly
<kmath> <schmidtim> @stuartcantrill Alliin, from garlic, is chiral: https://t.co/x3TkolnREK If we synthesise the enantiomer and test it… https://t.co/z3qhzxVCyc
<SnoopJeDi> using acid to suppress alliinase activity to prevent alliin from being converted to allicin is my all-time favorite kitchen "science hack"
<egg> bofh: UmbralRaptop: fitnesses function getting increasingly weird: sum of the χ²_ν for each planet
<bofh> еgg: wtf, that is a slightly odd choice.
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<egg> bofh: the numbers of observations for the planets are rather different (three pages of tables for b down to 7 observations for h), so I'm trying to prevent the optimizer from screwing up any planet completely
<egg> bofh: also optimization is sausagemaking
* egg tunes the annealing schedule of the sausage
<bofh> https://twitter.com/ZakuraTech/status/1002529602139541504 best description of synthetic organic chemistry I've seen yet.
<kmath> <ZakuraTech> @Chemjobber "I make hexagons and hexagon accessories,"
<egg> bofh: I first tried the max of the χ²_ν but anything resembling the uniform norm screws things up completely
<bofh> Yeah I don't think a uniform norm would work here at all even *if* it's what's theoretically optimal, b/c of the inherent uncertainties.
<egg> bofh: mostly because in trying to optimize a bad maximum the optimizer is free to completely mess up the other dimensions
<bofh> Yeeeeeeeeeeeeeeeeeeeeeeep.
<egg> discontinuities!
<bofh> Like this is why I prefer optimizing things that have, like, at least C^2 structure.
<bofh> if you can take a Hessian of your objective f'n, and work with that there's only so much Badness each step can introduce.
<egg> bofh: um
<egg> bofh: this is TTV remember
<bofh> I know that doesn't apply here >_>
<egg> ;rpn 30 284 *
<kmath> egg: 8520
<egg> !wpn whitequark and the cats
* Qboid gives whitequark and the cats a Schwarz trihexaflexagon with a photodiode attachment
<egg> blarg it's having trouble with planet d
<bofh> d iirc had some funky ratios in the document provided, iirc.
<awang> egg: /r/cpp actually sticked a post saying that Reddit isn't a bug tracker pretty recently :P
<awang> But that's for posts
<awang> Bug reports in the comments section of things like "Visual Studio 2017 Preview ___ released!" seem to be more acceptable
<egg> bofh: Σ χ²ν = 3.665799 + 2.261607 + 390.836099 + 49.321694 + 16.676036 + 35.376575 + 36.564131 = 534.701941 planet d is garbled
<egg> it seems to still be improving but slooooowly
<bofh> lmaoooooooooooooooooo
<bofh> planet d, d for derp.
<egg> halp i cannot into optimization
<icefire> ;c sqrt(g * (5.972e24 * 10.2895) / 11066000)
<kmath> icefire: 19250.836150963929349
<icefire> whew
<icefire> ;c sqrt(g * (5.972e24 * 10.2895) / 11573000)
<kmath> icefire: 18824.435170433075328
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<kmath> <Catfish_Man> @JHeatherbell From this we can postulate a general N-analog of a pet which can perfectly fill any N-polytope. ⏎ ⏎ We m… https://t.co/GT1EgNpuYv
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<kmath> <JHeatherbell> @Catfish_Man For science! ⏎ ⏎ I wonder: ⏎ ⏎ 1. If dogs can fill arbitrary planes and cats can fill arbitrary 3D volumes…… https://t.co/2lNbTazW5m
<egg> !wpn bofh
* Qboid gives bofh an expander 🐍
<bofh> !wpn egg
* Qboid gives egg a Minkowsky pancake
<kmath> <bofh453> Just described the experimental side of my field as "shake & bake & chill" and it's... more correct than not, hilariously.
* egg dilates the pancake
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<egg> bofh: 3.3.1 in https://arxiv.org/pdf/1802.01377.pdf is odd
<egg> meow
<bofh> sec
UmbralRaptop is now known as PosterRaptor
<egg> !wpn PosterRaptor
* Qboid gives PosterRaptor a reduced javelin
<PosterRaptor> Like "reduced mass", or the antonym to "oxidized"?
<PosterRaptor> !wpn egg
* Qboid gives egg a sticky barber
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<egg> !wpn bofh
* Qboid gives bofh a csh-compatible overfull variety
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<egg> !pet bofh
* Qboid pets bofh
<awang> !wpn -add:adj fish-compatible
<Qboid> awang: Adjective already added!
<awang> !wpn -add:adj sh-compatible
<Qboid> awang: Adjective already added!
<awang> !wpn -add:adj bash-compatible
<Qboid> awang: Adjective already added!
<awang> !wpn -add:adj zsh-compatible
<Qboid> awang: Adjective added!
<awang> What
<awang> !wpn -add:adj ksh-compatible
<Qboid> awang: Adjective already added!
<awang> How did everything *but* zsh make it in?
<egg> dunno
<egg> bofh: aaaaaaaaaa that paper on The nature of the TRAPPIST-1 exoplanets uses italic x and y on three successive pages with three unrelated meanings and with two unrelated indices
<egg> PosterRaptor: astronomers should learn more letters
<bofh> egg: sounds like astro
<PosterRaptor> !wpn -add:adj tcsh-compatible
<Qboid> PosterRaptor: Adjective added!
* PosterRaptor hands egg a pile of hyperparameters.
<bofh> also, "let A be a ring, and 𝔞 a subset of A. we say that 𝔞 is a left ideal of A if \forall a \in 𝔞, ..."
<egg> bofh: PosterRaptor: you have xy the coordinates in the xy plane of the sky, xy the arbitrary orbital elements modified from a polish paper and which have a cosine and sine in them respectively, and xy the inputs and outputs of some quadratic minimization thing (y being χ² and x being a or M)
<bofh> ^actual line from a math assignment I had.
<egg> bofh: no but that is fine
<egg> they are different as
<bofh> True.
<egg> the first two xys have indices that correspond to the planets, the third has 1,2,3
<PosterRaptor> bofh: aάαåąᾰ
<egg> PosterRaptor: that would be better than this mess
<egg> or use CJK ideographs
<egg> whatever
<egg> bofh: also I don't understand how they do 14 integrations in 3.3.1 and not 21
<egg> hm wait maybe i do?
<egg> but it says "for each planet in a serial way." so no
<egg> or maybe they mean that the 1,2,3 is serial?
<egg> but that makes even less sense, *those* are independent
<PosterRaptor> Is this a pidgey?
* PosterRaptor gestures at a butterfree.
<iximeow> PosterRaptor: poster?
<PosterRaptor> iximeow: science ™, currently in progress.
<iximeow> aha
<PosterRaptor> Okay, it's closer to engineering.
<bofh> egg: what the hell
<bofh> I'm staring at this paper and this notation is a crime against humanity
<PosterRaptor> Proposal for a "small" telescope in orbit to take high resolution spectra (and simultaneous photometry) to find earthlike planets.
<PosterRaptor> "earthlike" >_>
<egg> PosterRaptor: s/"s.*"/smol/
<Qboid> egg thinks PosterRaptor meant to say: Proposal for a smol telescope in orbit to take high resolution spectra (and simultaneous photometry) to find earthlike planets.
<egg> bofh: so the xy for the custom elements comes from the poles
<egg> The Laplace resonance in the Kepler-60 planetary system
<egg> in section 3
<egg> except the poles don't use the square root of the eggscentricity, just the eggscentricity itself
<bofh> *stare*
<PosterRaptor> egg: I'm not sure how they'd react to me using "smol"
<egg> bofh: what
<bofh> WELL. THEN.
<bofh> opening up a new tab in Firefox kept deterministically crashing on a few sites (notably: twitter and UIUC's email)
<bofh> echo -n "1" > /proc/sys/vm/drop_caches fixed it instantly
<egg> PosterRaptor: I don't know, I still haven't figured out how you pronounce it
<kmath> <AndrewKnapik> https://t.co/L5H7NOxUoX
<PosterRaptor> bofh: glad to see that it eggsists.
<egg> I would say [smɔl] for smol and [smoːl] for small but then the OED somehow says [smɔːl] for small and has a sound sample that sounds like [smoːl] and i am confused
<egg> bofh: how do you pronounce smol
<egg> and small
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<kmath> <xzqx> And I can’t forget the CORN SMUT. https://t.co/Eh9R2HxXbH
<egg> whitequark: which is food, as everything is https://en.wikipedia.org/wiki/Corn_smut#Culinary_uses
<PosterRaptor> o_O
<PosterRaptor> Majestic cat.
<egg> PosterRaptor: Ꙩ_ꙩ I pronounce them backwards? but smol with a short [ɔ]
<PosterRaptor> egg: not quite sure what you mean. Something about US-Midwest vs French accents?
<PosterRaptor> (Also, wow. I sound terrible)