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>
"Clark's Hypergolic Hands" sounds like the worst D&D artifact wepon
<bofh>
...oh, I should've read up one more line >_>
<soundnfury>
Heh.
<Ellied>
1st-level conjuration: doppler radar. You gain instant knowledge of the dominant radial velocity and conductivity*angular size product of all creatures in a 1000-foot radius
<soundnfury>
nah, doppler is 2nd level
<Ellied>
at higher levels, you can take the fourier transform of the mixed signal and tell how many moving things are present
<soundnfury>
1st-level just gets distance from ct/2
<Ellied>
distance seems more advanced without conductivity/size information
<soundnfury>
I'm imagining 1st-level (or maybe cantrip, idk) as being like Chain Home
<soundnfury>
i.e. you get the distance and a very vague notion of direction and return-amplitude
<Ellied>
I'm imagining this as just a general-threat-assessment type thing, so you don't have any idea where to shoot but can vaguely tell how many, how big, and how fast
<Ellied>
or just how big and how fast at first
<Ellied>
later you can start to tell how many and whereabout
<Ellied>
or they could be nonconductive or smaller than a half-wavelength and you can't tell anything
<SnoopJeDi>
"Next, instead of using something that acts like contours, let's try using contours!" damn, burn
<SnoopJeDi>
I very much recommend that Borkin paper if you've not read it UmbralRaptor
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<UmbralRaptor>
SnoopJeDi: I'm not sure I have.
<SnoopJeDi>
hmm in hindsight it not be the "jet can kill someone" paper I'm thinking of anyhow
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<Ellied>
yeah, so the SCP Wiki main IRC channel just had an argument over whether handwriting can correctly be called a "script," which got heated enough that it required moderator intervention
<Ellied>
this is definitely a thing, which just happened
<soundnfury>
Does it have its own Unicode block?
<soundnfury>
!wpn Ellied
* Qboid
gives Ellied an entangled spiral cut ideograph
<Ellied>
clearly we need to draw a partition down the middle of the U+2XXXX plane and let one side be the handwriting-script zone and the other side be the handwriting-not-script zone, with a 512-codepoint demilitarized zone of assorted unrelated characters between the two territories.
<Ellied>
!wpn soundnfury
* Qboid
gives soundnfury a fall tadpole
<soundnfury>
yeah but you know the handwriting-not-script folks will try to develop combining diacritical weapons
<Ellied>
U+2FF5D (COMBINING PLUTONIUM HEMISPHERES) was famously referred to as the "Demon Glyph" after it was involved in three separate diacriticality incidents.
<kmath>
<FioraAeterna> -- i'm *fairly certain* at least a couple of my kin follow me here. reply if you took the fucking Hopkins Talent S… https://t.co/YCJcjNSjqO
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<egg>
!wpn UmbralRaptor
* Qboid
gives UmbralRaptor a lambda dodecahedron
<egg>
!wpn Fiora
* Qboid
gives Fiora an unremarkable prepromorphism
<kmath>
<mirihawke> @FioraAeterna There's less of us than there are astronomy majors. Though I guess to an astronomy major (populatio… https://t.co/ghJzXKBmmm
<egg>
!wpn Ellied
* Qboid
gives Ellied a poisonous standing wave ratio
<UmbralRaptor>
egg: eh, I was in something a bit different. I think Duke University was involved? <_<
<egg>
UmbralRaptor: yes, but you're an astronomer,
* UmbralRaptor
pokes reality with a stick.
<egg>
UmbralRaptor: realitea.
<egg>
Norgg: we haven't seen teabot in a long time :'(
<UmbralRaptor>
egg: Is coffee imaginary, then?
<APlayer>
More like complex
<Ellied>
diodebot is good again, it was just a silly new dependency that was easy enough to pull in
<UmbralRaptor>
∫|coffee|² == ?
<UmbralRaptor>
Ellied: yay
<APlayer>
UmbralRaptor: -1 x
<UmbralRaptor>
APlayer: AAAAAAAAA
<Ellied>
UmbralRaptor: uh, d what?
<UmbralRaptor>
Hrm. dcaffeine?
<APlayer>
UmbralRaptor: Okay, now what did I do wrong? :D
<UmbralRaptor>
Well, if it's QM, usually a space derivative.
<APlayer>
That was an integral?
<APlayer>
Also, I have no idea if I got the maths correctly, so this was a legit question
<APlayer>
What did I do wrong?
* Ellied
stabs android not having an input method that supports user-defined compose sequences
<Ellied>
I at least have the greek keyboard enabled and the default one supports a lot of less-common symbols like °,÷,×,•, and √, but no integral or partial derivative easy to hand
<UmbralRaptor>
APlayer: I was thinking in QM, so getting a negative probability is Very Bad.
<APlayer>
Heh, alright
* UmbralRaptor
uses Multiling O keyboard, and edited in a bunch of characters.
<APlayer>
But ∫ |i|² dx = -x, right?
<UmbralRaptor>
+x, in that |i| = 1
<APlayer>
Ah, that was the part I was uncertain about
<APlayer>
What happens when you do |a + bi|? Is that like a vector magnitude?
<kmath>
<eggleroy> ? Christoffel, the new release of Principia, is out. A vessel can no longer pass through a planet unscathed by clos… https://t.co/YdLnyCX5dF
<egg>
ow it got truncated
<egg>
…ing its eyes and assuring itself that small time steps aren't real as it rams the surface.
<egg>
>_>
<egg>
!wpn bofh
* Qboid
gives bofh an isentropic monoid
<UmbralRaptor>
egg: does the readme include scary GR?
<egg>
sadly no
<egg>
UmbralRaptor: I mean we *have* been discussing distinguishing vectors and covectors (thereby making the metric explicit) because of https://forum.kerbalspaceprogram.com/index.php?/topic/162200--/&page=36&tab=comments#comment-3231809 but that's in the very distant future if anything
<UmbralRaptor>
Alternative comment: New Principia release! This is not a Dril!
<kmath>
<eggleroy> ? Christoffel, the new release of Principia, is out. A vessel can no longer pass through a planet unscathed by clos… https://t.co/YdLnyCX5dF
<egg>
armed_troop: we release every new moon now
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<armed_troop>
oh nice
<egg>
armed_troop: and I can now build on mac myself because I have a corp mac
<armed_troop>
ooh nice
<egg>
(had some versions where lamont did the build, that worked too)
<armed_troop>
btw mac dynamic libs are typically named .dylib not .so :D
<armed_troop>
but it's fine
<egg>
yeah, but it works
<armed_troop>
I've just been awfully busy
<egg>
I could probably call it .principia
<armed_troop>
started graduate program, took an engineering analysis class that crams too much into a single semester :P
<egg>
meh, classical mechanics fit in 2 hours and quantum mechanics in the next two :-p
<egg>
(yes I had a lecture like that)
<egg>
(yes it was good)
<armed_troop>
hahaha
<egg>
armed_troop: fyi there are logs for this channel thanks to Thomas's Qboid running whitequark's logger: https://logs.tmsp.io/kspacademia
<UmbralRaptor>
egg: Newtonian sure, but Hamiltonian/Lagrangian mechanics?
<egg>
yes
<bofh>
UmbralRaptor: I actually think it takes less time to *start* with Hamiltonian or Lagrangnian mechanics and introduce Newtonian as a special case of the former.
<egg>
classical mechanics ends at the top of page 22, with "In the case h(q,p)=1/2(p^2/m+mω^2q^2), [...] we have the harmonic oscillator. And that's classical mechanics. Now on to quantum mechanics."
<egg>
(there's a typo it says p^2/n)
<egg>
blame the egg
<UmbralRaptor>
git blame egg
<egg>
"If you had fallen alseep at the beginning of the previous hour, and you thought QM was just a misspelling of classical mechanics, you might think the lecture had just started."
<UmbralRaptor>
“No human being can work with
<UmbralRaptor>
something other than a polynomial anyway.”
<egg>
:D
<egg>
UmbralRaptor: these lectures are *extremely* quotable
<egg>
Trubowitz!
<UmbralRaptor>
hrm
<egg>
also you have some snark at string theory at every page
<egg>
UmbralRaptor: wait no, classical mechanics and quantum mechanics were in the same lecture