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|zzz|egg>
yay
<UmbralRaptor>
Current pressure is 100.7 kPa.
<soundnfury>
egg|zzz|egg: is there anything special about [2^n] here, or are we just trying to count semigroups over sets of size k and then setting k = 2^n?
<kmath>
<stephentyrone> @eggleroy @UINT_MIN Also: love that the OEIS entry references a 27-year old post by my co-worker of 11 years =)
<bofh>
ROFL
<bofh>
WAIT A SEC
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<egg|zzz|egg>
bofh: hm, so re. the "feeding that into the waveform generator" bit, how do I get amplitude(t) from frequency(t)
<bofh>
sin(pi*frequency(t)) ?
<bofh>
:P
<egg|zzz|egg>
bofh: I don't think that actually works for non-constant frequency and large t? you dephase things by changing the frequency which seems wrong
<bofh>
egg|zzz|egg: why won't it work for non-constant frequency? like it won't sound identical to the Trappist system video, which seems to derive the mean motion period and then feed that as a piano key, but IMO it sounds more interesting to directly frequency modulate a sine by the orbital periods.
<egg|zzz|egg>
bofh: yes, but I don't think that's directly frequency modulating the sine? say you (discontinuously) halve the frequency, I'd expect the amplitude to remain continuous (and to just continue at half the frequency), not to randomly jump in a way that depends on the value of t
<bofh>
okay, so you want frequency modulation and I indeed gave phase modulation above
<bofh>
hm
<egg|zzz|egg>
bofh: also retrobop is, um, apparently not bound unless you take into account the mass of the inner satellites Ꙩ_ꙩ
<bofh>
wait what the actual fuck
<egg|zzz|egg>
and even then the Keplerian Jacobi periods vary by nearly three orders of magnitude?
<bofh>
congrats on making a system more chaotic than Hyperion's axial rotation
<egg|zzz|egg>
bofh: like that mostly highlights the shittiness of osculating elements
<egg|zzz|egg>
they're shitty and then the ляпунов exponent amplifies the shittiness :D
<bofh>
I wouldn't say shittiness necessarily - they're quite okay unless you have a highly chaotic case/large ляпунов exponent.
<egg|zzz|egg>
bofh: well, things can be weird *points at the moon*
<egg|zzz|egg>
precession everywhere :D
<egg|zzz|egg>
not sure how the osculating periods vary there
<bofh>
"Altough it's just outside the hill sphere of Mun it's still stable. This is a neat characteristic of retrograde orbits." oh right I keep forgetting about this property
<kmath>
<APOGEEsurvey> SiO masers are microwave-lasers associated with stars. They are typically found in stars loosing mass - like AGB stars (aka the best stars).
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<whitequark>
lol square orbits
<Fiora>
it's hip to be square
<egg|phone|egg>
!wpn Fiora and whitequark
* Qboid
gives Fiora and whitequark an amphibious theory
<egg|phone|egg>
"From the cat's point of view not only do birds not play fair by flying and having eyes that can see beyond the back of their heads, but they can positively cheat by using loud alarm calls and throw the cat's chances of catching any others."
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<whitequark>
lol
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<kmath>
<samthielman> I have RTed the shark that was on the highway with which you were probably trolling for favs Forgive me it was viral so fake and so old
<kmath>
<johannateske> Reminder to astro folks, especially those w/o permanent jobs & esp. esp. on job market: It is to your great advantage to have a website.
<egg|phone|egg>
UmbralRaptor: should ANBO be a thing :-p
<UmbralRaptor>
Probably
<Fiora>
welp and there it is. now i can officially say i work on the apple GPU on the A11 :P
<Fiora>
now makes apple officially the uh.... ~5th mobile GPU vendor
<SnoopJeDi>
neat
<UmbralRaptor>
Today in the future is disappointing: tethering a laptop on a 128k connection to send a png via email to print at a FedEx.
<soundnfury>
egg|zzz|egg: having seen your square orbits... when will principia support (or does it already?) linear orbits through toroidal planets?
<SnoopJeDi>
UmbralRaptor, I keep a nearly-flush drive plugged into my laptop for pretty much exactly that sort of file-shuffling case :/
<UmbralRaptor>
SnoopJeDi: insurance carf
<UmbralRaptor>
card
<SnoopJeDi>
blagh, insurance
* UmbralRaptor
? the individual mandate in the lack of subsidies for anyone making less than the poverty line.
<kmath>
<computerfact> BUTTONS ARE THE PROBLEM WEVE IDENTIFIED THE PROBLEM IT WAS BUTTONS WEVE REMOVED ALL THE BUTTONS WEVE SOLVED THE ALL PROBLEMS COWER BEFORE US
<soundnfury>
"the cross-section is neither circular nor elliptic but rather egg-shaped"
<SnoopJeDi>
That write-up never fails to delight
<SnoopJeDi>
which reminds me, I'm reading the last of the Three Body novels at the moment, and it mentions at some point that Trisolaran customs dictate holding special functions at stable (Lagrange) points, which would look Pretty Weird™ for a general three-body system o.O
<soundnfury>
SnoopJeDi: these special functions. Are they differentiable?
* SnoopJeDi
? insurance hoops to jump through to find coverage
* UmbralRaptor
hands SnoopJeDi a drawer full of cutlery.
<SnoopJeDi>
I'm rather hoping that since it's university insurance that using the university's psychiatric resources counts as in-network but https://i.imgur.com/XsJlZ60.jpg
<egg|phone|egg>
Bofh: is Jose turning into where-the-hell-is-Bermuda