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.
<egg>
meow meow meow meow meow
<bofh>
!pet egg
* Qboid
pets egg
<SnoopJeDi>
I seem to have fallen down a YouTube "historical cooking" rabbit hole
<SnoopJeDi>
Started with a video about saltwater taffy, learned a LOT about candymaking, and ended up on the Townsends channel learning revolutionary army recipes >_>
<SilverFox>
the more you look at it, the worse it gets
<SnoopJeDi>
UmbralRaptor, the Townsends kinda vary it up. There's a lot of Revolutionary Army stuff, which tends to be really simple because army food, but they also do more sophisticated stuff like building ovens, making bread, cheese, etc.
<SnoopJeDi>
The candy stuff was really interesting, since it's mostly about managing temperature. They had a really nice explanation of why pulling candy makes it white (air bubbles! Mie scattering :D)
<UmbralRaptor>
!
<SnoopJeDi>
Pretty much the same way leucophores work in cuttlefish camouflage incidentally
<SnoopJeDi>
and probably lots of other white colorations
<UmbralRaptor>
SilverFox: it's like that joke about simplifying 16/64 (cancel the 6s). But can you use similar wrongness to get the x = -3 result?
<UmbralRaptor>
SnoopJeDi: please do not stretch the cuttlefish.
<SilverFox>
UmbralRaptor, it makes my eyes hurt
<bofh>
UmbralRaptor: oddly enough it's the very first step that bothers me the most (2x + x^2 -> 2x^3).
<UmbralRaptor>
hm
<SilverFox>
like i said, it just gets worse the more you get into it
<SnoopJeDi>
bofh, because of vector subspaces? :)
<bofh>
SilverFox: nah, everything after that is just... meh. :p
<bofh>
SnoopJeDi: ...that makes sense.
<SnoopJeDi>
inasmuch as approximation is basically projection
<SnoopJeDi>
but that operation is like "could I be less accurate?"
<SnoopJeDi>
(I guess 'projection' is a weird way to look at equivalence classes?)
<SnoopJeDi>
I speak just enough abstraction to be a right fool :P
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<bofh>
SnoopJeDi: I mean, approximation is *kinda* projection onto a lower-dimensional subspace (it actually is exactly that for certain classes of approximations).
<SnoopJeDi>
yea that bit I was comfortable with
<SnoopJeDi>
more the analogy of term rearrangement as projection/approximation instead of "aha, equivalence!"
<SnoopJeDi>
I'm grateful that I can even perceive the former, trite though it is
<SnoopJeDi>
bofh, I talked to my dad on the phone about investing earlier and he came out with something along the lines of "you know when you get down to it, the math is pretty easy" and I kinda did an inner eye roll
<SnoopJeDi>
inasmuch as my dad is the kind of guy who thinks "arithmetic" if you say to him "math"
<bofh>
I mean it is a very useful realization inasmuch as it's a nice way of understanding why projection is *meaningful* (especially in the context of quantum information theory).
<SnoopJeDi>
yea
<bofh>
I mean that's not uncommon tbh. (Also I'd say the same about simple investing math, since I'm used to finance stuff being, like, Ito Calculus Hell)
<SnoopJeDi>
I learned my QM from a guy who was on the scene when matrix formalism was the newest hottest stuff. Really crazy generation gap to have learned ALL of my quantum in bra-ket vector land
<bofh>
s/Ito/Itô/
<Qboid>
bofh meant to say: I mean that's not uncommon tbh. (Also I'd say the same about simple investing math, since I'm used to finance stuff being, like, Itô Calculus Hell)
<SnoopJeDi>
yea, fair enough. I get worked up about Lockhart's Lament easily :)
<bofh>
Also yeah, our understanding of the conceptual framework of QM has advanced in shocking amounts since the ~30s and ~40s.
<SnoopJeDi>
And the very language we use
<SnoopJeDi>
bofh, I went with my gf's family on a tour of our cyclotron institute today, which was great fun, and had to dance around explaining "uh QCD is a patchwork of LIES" to laymen
<bofh>
(which really bothers me when people still insist on pedagogically replicating the exact same process when it's unnecessary AND unnecessarily confusing; like I did that route in undergrad and near-simultaneously intuitively derived this awkward intuition around QM as an extended probability theory and wavefunctions as being interpreted epistemically, only to later learn THAT THIS IS ACTUALLY A PROPER
<bofh>
FORMALISM A YEAR LATER)
<SnoopJeDi>
yea, quantum epistemology is wild
<SnoopJeDi>
and we're probably due for another upheaval sometime
<bofh>
(gods I was *so* annoyed at that, since for about a year how I was taught QM was literally counter to how I could make *any* mathematical or intuitive sense to it, and then it turned out that my intuitive understanding of it *makes more mathematical sense once you setup the formalism from a slightly different starting point* augh)
<SnoopJeDi>
yea that's...kinda criminal that the resources weren't there to say "hey wow that's very intuitive"
<bofh>
also yeah QCD is basically concentrated lies that kinda tell the truth.
<SnoopJeDi>
M E N T O R I N G I S B R O K E N
<bofh>
SnoopJeDi: like part of the problem is I was a very weird case; I had a *very* solid understanding of functional analysis at the same time as I took my first QM class that was at a level more advanced than Chapter 4 of Griffiths.
<SnoopJeDi>
that's fair. I worked with a guy like that when I learned my (very little) functional analysis for FEA
<bofh>
so I had way more of a conceptual framework of math than the average third-year undergrad physics student, and also I had sat in on a grad QM foundations class where the first month was just Bayesian Probability Theory (then sort of stopped attending since my semester got crazy)
<SnoopJeDi>
he was the math brains, I was the physics brains, but we both attended courses in both departments, so we tutored each other really productively and learned a lot
<bofh>
as a result I basically was the exact inverse of what a typical physics *grad student* in the quantum information theory was
<SnoopJeDi>
(even if we didn't get much done except write really basic FEA systems in MATLAB, heh)
<bofh>
namely I had the math and was trying to map physics and intuition on it
<bofh>
and yeah that's such a wonderful arrangement.
<SnoopJeDi>
I very much owe the man who arranged it (my math advisor) a thank-you card. I learned a lot from him
<SnoopJeDi>
Same guy I've mentioned that said you don't learn something until you've forgotten it twice
<bofh>
I recall the next semester when we had that QM foundations course again and I took it, I used to have this weekly thing that I nicknamed "Teaching Math to Physicists" (a bit derisively, I still hadn't worked off the entirety of my jerkass math superiority at the time, I kind of hate myself for that >_<), and I'd go over a lot of basic, like, von Neumann Algebras stuff in there and in response thru
<bofh>
questions and also a lot of me being clueless and ...
<bofh>
it was a great experience I am so glad I did it.
<bofh>
... getting corrected on it I learned a lot of actual physics.
<bofh>
also gods my third year of undergrad was so fucking wild
<bofh>
I just realized the average third-year maths student *prolly* doesn't have extensive experience with von Neumann algebras.
<bofh>
(I swear I forgot more that year than I learned in the next 8)
<SnoopJeDi>
oh man, that sounds great
<egg|cell|egg>
Meow
<SnoopJeDi>
!pet egg|cell|egg
* Qboid
pets egg|cell|egg
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<egg|cell|egg>
!meow _whitelogger
* Qboid
meows at _whitelogger
<bofh>
oh gods I just stumbled across that packet of Alsa I bought and burst out laughing again
<egg|cell|egg>
!seen ferram4
<Qboid>
egg|cell|egg: I last saw ferram4 on [01.09.2018 23:45:59] in #kspacademia saying: "Yeah, I need to update it, but some PC issues mean my workflow is really disrupted right now"
<ferram4>
?
<egg|cell|egg>
How are things?
<ferram4>
Urgh
* egg|cell|egg
gives ferram4 a new moon
<ferram4>
Probably the next time I shut down this machine I'm gonna squeeze the not-working macvhine's HDD into its other slot, but I'm delaying
<kmath>
<whitequark> I was trying to make an Apple Thunderbolt 3 to 2 adapter work and accidentally made a Whitequarkle USB-C to Display… https://t.co/Obl5GtdKOx
<awang__>
egg: \o/ for macOS finally catching up
<awang__>
!wpn -add:adj shaved
<Qboid>
awang__: Adjective added!
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<whitequark>
awang__: pulseview
<egg>
Sarbian: bofh: aaaa KSP has variable mass flow expressed as a function of the ratio of remaining propellant, rather than time, so that you get an additional ODE for free just to compute the mass (and the thrust) as a function of time
<egg>
Sarbian: I'm looking at fuel flow, I think it will drive me insane,
<awang__>
egg: Principia is taking over yet another KSP function?
<egg>
nah, but might replicate it like Sarbian does >_>
<UmbralRaptor>
Have ferram4 simulate combustion chambers and turbo pumps?
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<bofh>
egg: aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa congrats have an ODE
<UmbralRaptor>
!wpn -add:wpn ODE
<Qboid>
UmbralRaptor: Weapon added!
<UmbralRaptor>
!wpn -add:wpn PDE
<Qboid>
UmbralRaptor: Weapon added!
<UmbralRaptor>
egg:… does that pic imply that I'm polydactyl?
<SnoopJeDi>
Anything for a few likes on the internet I guess
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<awang__>
egg|cooking|egg: What do you have to replicate fuel flow for?
<awang__>
Also, what are you cooking?
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<egg|cooking|egg>
awang__: I was considering making the manoeuvre system actually aware of the engines, and how much fuel is available to them (and for SRBs, the fact that they can't be shut off)
<egg|cooking|egg>
awang__: and a cheese soufflé
egg|cooking|egg is now known as egg
<egg>
!wpn whitequark
* Qboid
gives whitequark a catenary basket
<egg>
!wpn awang__
* Qboid
gives awang__ a fluorine durian
<egg>
!wpn UmbralRaptor
* Qboid
gives UmbralRaptor a harmonic deadlock
<egg>
!wpn bofh
* Qboid
gives bofh a de-Sitter scimitar
<egg>
the fluorine durian sounds ominous
<UmbralRaptor>
I'm worried about the scimitar's curveature.
<Qboid>
[#4132] title: Please stop using my tools | Apologies to any contributors who aren't employees of Palantir. But to those that are:... | https://github.com/palantir/tslint/issues/4132
<bofh>
egg: yeah you basically just apply Lindemann-Weierstrass and that gets you transcendence of e; transcendence of pi is just a bit more work from thyere.
<bofh>
s/thyere/there/
<Qboid>
bofh meant to say: egg: yeah you basically just apply Lindemann-Weierstrass and that gets you transcendence of e; transcendence of pi is just a bit more work from there.
<kmath>
<FioraAeterna> close but distinctly non-romantic relationships ⏎ ⏎ relationships between humans and nonhumans that aren't "learning t… https://t.co/4s7AdAQNAJ
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<kmath>
<HazelMonforton> @aarond Mid-thesis one of my friends called a PhD a "Pedant's Half-finished Document" and I was so mad because it was true.
<UmbralRaptor>
Same
<UmbralRaptor>
So, in career discussions, my advisor commented that my coding skills plus citizenship plus current location would make it relatively easy to get a job with a defence contractor, and I'm not sure how to describe how unsettling that is…
<bofh>
eek
<SnoopJeDi>
UmbralRaptor, I find it helpful to say plainly and politely "I have ethical reservations about [X]"
<UmbralRaptor>
Hm
<SnoopJeDi>
(assuming you do, of course)
<UmbralRaptor>
If it's with eg: carrier rocket or satellite bus design, it's fine. But if I'm likely to end up helping with bombing weddings or putting kids in cages…
<APlayer>
Defend yourself against the defence contractors
<UmbralRaptor>
Or: working for Tory Bruno, maybe. Working for Peter Thiel, no.
<SnoopJeDi>
UmbralRaptor, it's really hard to sort who's who :(
<SnoopJeDi>
although I think my personal philosophy aligns with "defense is offense"
<kmath>
<europamilkshake> welp, i'm about to defend a Master's thesis while applying for social assistance at the same time 💁🏼♀️… https://t.co/uVaa9tFFi6
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<kmath>
<polarisdotca> I've been tweeting recently about how great it is to work @ubcokanagan If you're a computational physicist w intere… https://t.co/QUjEMEbHpQ
<Qboid>
7d 0h 0m 0s left to event #28: Horizons 3e & Azerspace 2 (Intelsat 38) / Ariane 5 VA245 [at 2018-09-17 22:00:00]. Say '!kountdown 28' for details
<UmbralRaptor>
hrm
<bofh>
oh cool I'm getting pro-EU Article 13 ads on twitter what the *fuck*
<bofh>
like how badly do you ad-targeting fail that you show ads for that thing to someone whose official stance on Intellectual Property is that the concept is morally wrong fundamentally and should be scrapped.
<bofh>
anyway blocked~
<SnoopJeDi>
bofh, this sonification is sooooo good
<SnoopJeDi>
I kinda want to loop it for a workday and see how that goes
<bofh>
SnoopJeDi: wait, which? The SOHO solar data?
<SnoopJeDi>
Yea!
<SnoopJeDi>
I remember learning about the technique when they first started doing stuff like that in earnest (I think? around 2010 maybe)
<SnoopJeDi>
but IIRC the produced audio felt less...musical
<SnoopJeDi>
it looks like they've set about a more rigorous way to compose a richer sound by choosing the overtones, without discarding signal
<SnoopJeDi>
oh right, they did averaging to only keep l=0,1,2 too
<SnoopJeDi>
It could also just be an entirely different dataset, it's been so long since I poked at it
<SnoopJeDi>
Maybe I'll get a chance to see the exhibit the next time I'm in the East :)
<bofh>
Yeah, the process seems to have changed somewhat since the last. I'm impressed, it's shockingly musical now, yeah.
<bofh>
(also now I'm reminded of that time I grabbed a ton of Mozart & Haydn off of NSSDC's SOHO data ftp, rofl).
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