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.
<egg>
"A temperate rocky super-Earth transiting a nearby cool star
<egg>
"
<egg>
LHS 1140b
<egg>
UmbralRaptor: is that the same Saha as in Saha & Tremaine (in you tweet)
<egg>
apparently not
<egg>
!!! the Saha from Saha & Tremaine is in uzh!
<kmath>
<astro_jcm> @Alex_Parker That's nothing: a US customs officer once asked me to explain cold mode accretion in galaxy formation. Totally not kidding.
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<egg|zzz|egg>
!wpn whitequark
* Qboid
gives whitequark a sub-calibre ruby
<egg|zzz|egg>
!wpn Iskierka
* Qboid
gives Iskierka a hydrogenated group
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<egg|zzz|egg>
....
<egg|zzz|egg>
hahahaha
<Iskierka>
?
<egg|zzz|egg>
when you set KSP's autopilot to VesselAutopilot.AutopilotMode.RadialIn it points up
<egg|zzz|egg>
whereas the Navball's radialInVector points down
<egg|zzz|egg>
but it's ok, because the button icon and hovertext for the SAS are inverted
<egg|zzz|egg>
so the SAS radial out button sets the autopilot to RadialIn
<egg|zzz|egg>
which makes it point in the radial out direction
<Iskierka>
is *that* why I was very confused which way I was pointing with principia?
<egg|zzz|egg>
yes, because principia assumed that RadialIn autopilot meant that the user had asked it to point radially inwards
<egg|zzz|egg>
but no, it means the reverse
<Iskierka>
time for bugreport?
* egg|zzz|egg
stares at SQUAD
<egg|zzz|egg>
fuck no, I can just put a comment explaining that I'm working around the bug
<egg|zzz|egg>
yeah, so the SAS buttons are indexed and they convert the index of the clicked button to the enum
<egg|zzz|egg>
and apparently they screwed up the indexing of two buttons and fixed that by adding a sign so that the button whose index corresponds to RadialIn makes it point radially out \o/
<egg|zzz|egg>
we're pointing radially in, we're pointing towards the navball symbol that's radially in, but the SAS was ordered to point radially out :D
<Iskierka>
it seems illogical to me to have prograde on the left but not line that up with radial in anyway
<egg|zzz|egg>
true
<egg|zzz|egg>
but ~KSP~
<egg|zzz|egg>
or maybe they had the sign error first and then swapped the icons and hovertexts to match?
<egg|zzz|egg>
(because why fix a sign error when you can have internally inconsistent APIs instead)
<Sarbian>
Iskierka: it does not. I don't use the stock autopilot
<egg|zzz|egg>
sarbian is wise
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<egg|zzz|egg>
!csharp 0x54B6323B3376D6F3
<Qboid>
6104121574795171571
<egg|zzz|egg>
!csharp 0xB57B58F9CF757C62
<Qboid>
13077143772951051362
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<egg|zzz|egg>
!wpn ferram4
* Qboid
gives ferram4 a down iron
<egg|zzz|egg>
bofh: uh, I managed to write code that has an error of 2 ULPs in debug mode and of 4495309844136823081 ULPs in release >_>
<egg|zzz|egg>
what are you doing compiler
<SnoopJeDi>
O_O
<bofh>
egg|zzz|egg: WTF
<bofh>
-fno-associative-math perhaps? what's the code tho
* Ellied
jitters impatiently about not being able to talk to her prof about the MOSFET Weird until monday
<Ellied>
maybe in the meantime I can try to use it to build an RNG.
<bofh>
Ellied: the fuck is happening there
<Ellied>
I don't even know. For some reason a gate voltage between 2 and 3 volts appears to cause it to go mad and summon ghosts.
<Ellied>
My best guess is that that voltage is right in the correct zone to cause some kind of weird nonsense in the depletion layer that observes the electrons moving through and causes shot noise.
<bofh>
ohhh
<Ellied>
but I would've expected wayy lower amplitude for shot noise, so...
<bofh>
so if you raise it to Vgs>3V, you get sensible behaviour?
<bofh>
oh I've heard about it (in detail :P) but not seen it yet
<bofh>
it looks like it's trying to ask you a question
<Ellied>
;quote add Ellied I don't even know. For some reason a gate voltage between 2 and 3 volts appears to cause it to go mad and summon ghosts.
<kmath>
Ellied: Added 'I don't even know. For some reason a gate voltage between 2 and 3 volts appears to cause it to go mad and summon ghosts.' [4]
<bofh>
heh.
<Ellied>
;quote
<kmath>
Ellied: <Ellied> I don't even know. For some reason a gate voltage between 2 and 3 volts appears to cause it to go mad and summon ghosts.
<bofh>
LOL sci-hub captcha of "twerps" again
<Ellied>
;quote
<kmath>
Ellied: <Ellied> just because we just elected an incompetent fascist dictator to the presidency and are about to start dying from mass loss of health insurance doesn't mean our public transit isn't crap
<Ellied>
heh
<egg|zzz|egg>
bofh: but what question does it want to ask
<egg|zzz|egg>
whitequark: also if you have more feline imagery do link it here
<bofh>
egg|zzz|egg: an existentialist "why?"
<egg|zzz|egg>
bofh: :D
<egg|zzz|egg>
!seen UmbralRaptor
<egg|zzz|egg>
!wpn UmbralRaptor
<Qboid>
egg|zzz|egg: I last saw UmbralRaptor on [14.05.2017 15:37:18] in #bottorture saying: ".hat"
* Qboid
gives UmbralRaptor an umbral keyboard
<egg|zzz|egg>
bofh: any idea what's happening to my hyperbolic mean anomaly :-\
<egg|zzz|egg>
s/anomaly/motion
<Qboid>
egg|zzz|egg meant to say: bofh: any idea what's happening to my hyperbolic mean motion :-\
<egg|zzz|egg>
(I hope you don't like GCC, because it sure doesn't like our code)
<bofh>
(so my relationship with gcc is best described as hate-hate)
<egg|zzz|egg>
ah good, welcome to the club
<egg|zzz|egg>
with my identifiers I'm quite safe from it :D
<bofh>
I develop for ffmpeg, the whole "oh cool what horrible perf regressions did the gcc random code generator give us *this* upgrade cycle" is (or at least was when I was more active) a weekly thing
<egg|zzz|egg>
auto const& ϖ = *longitude_of_periapsis \o/ \o/ \o/
<egg|zzz|egg>
I think those two characters are new in the codebase
<egg|zzz|egg>
bofh: I think there's at least one person trying to use principia for non-ksp things though
<egg|zzz|egg>
or at least we god a mail from cmr (@cmrx64 on twitter) who wanted to use it to make some sort of tool for a scifi writer
<egg|zzz|egg>
s/god/got
<Qboid>
egg|zzz|egg meant to say: or at least we got a mail from cmr (@cmrx64 on twitter) who wanted to use it to make some sort of tool for a scifi writer
<egg|zzz|egg>
bofh: what use do you have for elements btw
<egg>
it has J1900, J1950, J2000, J2100, B1900, B1950
<egg>
UmbralRaptor: so apparently people don't actually use arbitrary epochs of the form J2345.6?
<Ellied>
bofh: uh, it wasn't very interesting, it was literally just a 10 MHz sine wave
<Ellied>
well, mostly sine. basically it was going around that loop that my plots from last night showed.
<UmbralRaptor>
egg: not explicitly.
<egg>
hm
<UmbralRaptor>
Implicitly for ephemeris porpoises, though…
<egg>
UmbralRaptor: how so
<UmbralRaptor>
Maybe I'm misunderstanding
<UmbralRaptor>
But solar system bodies move a lot, and it matters for highish proper motion stars.
<egg>
UmbralRaptor: sure, but how do julian epochs appear in there
<UmbralRaptor>
hrm. Probably grossly misunderstanding, but there's a need for where the objects are (RA, Dec), and then local sidereal time to convert this to alt/az.
<egg>
UmbralRaptor: right, but is the time given in the J2345.6 format?
<egg>
or just JD (which counts days, not julian years)
<UmbralRaptor>
JD IIRC
<egg>
right
<egg>
so people don't actually use the julian epochs besides J2000 and perhaps a couple more :-p