raptop 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. | We can haz pdf
e_14159 has quit [Ping timeout: 190 seconds]
e_14159 has joined #kspacademia
<kmath> <rygorous> First, let's eliminate the stupid recursions in there: ⏎ 1/2c butter = 1/4 greek yogurt ⏎ 3/4c buttermilk = 2/3c greek… https://t.co/69OnQDYDaC
<egg|zzz|egg> everything is butter
<egg|zzz|egg> that makes sense
<mofh> how much butter did we go thru in that last week at ANBO again? iirc it was like 1.2kg
<mofh> (or 2.4lb if you'd prefer)
<egg|zzz|egg> mofh: i don't remember
<egg|zzz|egg> mofh: 5 packets of butter in a week sounds like more than i rememmber
<B787_300> oO
<B787_300> that is a lot of butter
<egg|zzz|egg> B787_300: i don't think mofh's estimate is accurate
<B787_300> egg|zzz|egg: too low or high
<egg|zzz|egg> seems high
<egg|zzz|egg> but i don't remember eggsactly what we ate
<egg|zzz|egg> mofh: meow
<whitequark> 01:02 <@mofh> how much butter did we go thru in that last week at ANBO again? iirc it was like 1.2kg
<whitequark> the fuck
<egg|zzz|egg> whitequark: nah its' probably less than that
<egg|zzz|egg> maybe 750 g?
<UmbralRaptop> were you trying to climb a space elevator?
<egg|zzz|egg> <mofh> trying to make sense of what happened to Saint-Jean-le-Rond. was it never built despite appearing on city plans, remolished, merged into another building? <<< oh there might be some confusion here; the french word "plan" here means map in this context, not that which is intended
<mofh> egg|zzz|egg: OH. thank, false cognates >_<
<egg|zzz|egg> thognates.
<mofh> egg|zzz|egg: okay, so from what I gather the wooden scaffold in the belfry securing the bells is very damaged from wire and fater and liable to give out? (it looks carbonized, at least)
<mofh> ..
<mofh> fire and water
<egg|zzz|egg> mofh: the floor in the tower is damaged, making the photographer's task tricky
<whitequark> wire and fater
<mofh> huh, the wood furniture seems to be in good shape?
<mofh> and that's a pretty much complete rosette window, i'm impressed (and relieved)
<egg|zzz|egg> yeah, the nave and choir are mostly ok aside from water, except where the ceiling fell on them
<mofh> the ceiling seems to have mostly fallen into the center part of the nave?
<mofh> okay the west(?) rosette window looks to be perfectly intact?! I'm impressed the lead securing the glass in-place didn't melt.
<egg|zzz|egg> mofh: people were observing that there were candles unmelted
<egg|zzz|egg> the only fire in the nave was where the spire fell, and later where bits of vaulting collapsed
<egg|zzz|egg> including at the crossing of the transept, yes, there a full vault collapsed
<mofh> yeah I'm referring to the charred remains of wood at the crossing of the transept mainly.
<mofh> it's kind of this big heap
<egg|zzz|egg> yup
<egg|zzz|egg> that looked like the hottest bit in the photos of the fire
<egg|zzz|egg> presumably the limestone there turned to lime, and the whole vault collapsed
<egg|zzz|egg> (and then the wood that was on top ended up on the floor)
<egg|zzz|egg> the modern altar was apparently under there, but the old one is fine in the choir
<egg|zzz|egg> mofh: the rose that's shown closely in these photos is the one in the north transept i think
<mofh> Yes, that's the north rosette
<egg|zzz|egg> whitequark: tire and wafer
<UmbralRaptop> That is a very confusing variant on communion
<egg|zzz|egg> UmbralRaptop: rite and wafer
<mofh> LOL
<mofh> oh, so the actual limestone coll--oh right, the calcination temperature is actually low enough to be reached with a wood fire.
<whitequark> limestone what
<egg|zzz|egg> mofh: so if you look at the scaffolding, which is steel, the central parts of it (above the crossing of the transept) are severely bent down
<egg|zzz|egg> mofh: that gives you an idea of the temperature
<egg|zzz|egg> mofh: re. towers: the wooden scaffolding holding the bells (the belfry proper) is safe afaict; it was threatened when the fire got in the northern tower, and had it burned down the tower would have collapsed (likely bringing down a lot of the structure with it), that was the main concern, and the focus of the firefighting, between 22 and 23 on the 15th
<egg|zzz|egg> mofh: cutaway of the tower: http://www.notredamedeparis.fr/content/uploads/2013/04/Coupe-de-la-tour.jpg (southern tower but you get the idea)
<egg|zzz|egg> whitequark: not sure what mofh's word was that was interrupted, but the limestone likely degraded due to heat (into lime)
<mofh> whitequark: collapsed
<mofh> whitequark: which is what would happen if limestone is calcinated into quicklime
<egg|zzz|egg> mofh: the belfry of st sulpice for comparison (outside its tower) http://www.i-b-c.fr/IMG/png/Beffroi-de-l_eglise-St-Sulpice---Paris-2.png
<mofh> holy shit that's big
<mofh> OTOH that bell is LOUD, it rings for 5 minutes before the Sunday organ concertos and you can hear it clearly from the Saint-Germain-des-Prés métro stop then.
<egg|zzz|egg> (south)
<egg|zzz|egg> mofh: whitequark: bellringing and cat http://www.notredamedeparis.fr/content/uploads/2013/04/NDP-2013-04-05-3-1.jpg
<egg|zzz|egg> mofh: southern belfry; the st sulpice one is sizeable, but notre dame is *big* http://www.notredamedeparis.fr/content/uploads/2013/04/NDP-2013-04-05-1.jpg
<mofh> I mean I can *see* the belfries in every image, they are incredibly distinctive
<mofh> I've just never been around Notre Dame when it was ringing the bells somehow
<egg|zzz|egg> whitequark: https://twitter.com/whitequark/status/1118672923408130048 can котенька read,
<kmath> <whitequark> @zarbet can you conclusively prove that there isn't a cat that can read? i can't
<egg|zzz|egg> mofh: unrelated (aside from the fact that i came across this twitter archaeologist today) but nice https://twitter.com/ValeriaAugusta8/status/1118480016164179968
<kmath> <ValeriaAugusta8> À #Rome, le premier palais de Néron ouvre ses portes au public. Il s’agit de la Domus transitoria sur le #Palatin https://t.co/2afV7mPAzl
<mofh> egg|zzz|egg: plz link me more french twitter archæologists btw
<egg|zzz|egg> mofh: interesting article from a stonecutter, more optimistic than most on the time required (and comparing to Nantes 1972) http://www.bloc.paris/dame-de-paris-violente-piqure-de-rappel/
<mofh> Huh, that's surprising, I was honestly expecting Nantes 1972 *or longer* in terms of time required.
<egg|zzz|egg> mofh: it's similar
<egg|zzz|egg> mofh: but they managed to open the choir in 1975
<mofh> Huh, but roof repairs on Nantes took 13 years before the roof was complete, what gives?
<egg|zzz|egg> yes
<egg|zzz|egg> mofh: it's not like you leave it open to the rain while you work on it, it's typical to build a temporary cover
<egg|zzz|egg> mofh: this is a stonecutter writing, so they focus on the stonework of the vaulting
<mofh> Which I can actually see being comparatively quick to repair, okay.
<egg|zzz|egg> mofh: saw that article via https://twitter.com/_MathiasD (who also made that thread earlier today)
<kmath> <_MathiasD> À lire : le point de vue d'un tailleur de pierre sur les enjeux du chantier de restauration de Notre-Dame. https://t.co/p1opdCoupK
<egg|zz|egg> mofh: why is it 6 in the morning again
<mofh> archæology is interesting? :P
egg|zz|egg has quit [Ping timeout: 190 seconds]
<kmath> <Dataflow_G> Related: Time to update the VI Analyzer dictionary. https://t.co/VYK2lhSe6B
<_whitenotifier-3d18> [Principia] pleroy opened pull request #2138: Rename the Slippist b planet. - https://git.io/fjYpM
* UmbralRaptop pokes sleep with a stick
egg|zz|egg has joined #kspacademia
<egg|zzz|egg> mofh: interesting on 3d numerisation efforts https://twitter.com/bertrandchazaly/status/1118802952595169280 (via @_MathiasD
<kmath> <bertrandchazaly> Un petit thread sur les relevés 3D sur #NotreDame : ⏎ Je vois fleurir un nombre incalculable d'articles sur le clone… https://t.co/QP7EMsfygI
<egg|zzz|egg> mofh: okay no actually via https://twitter.com/M_Panneau/status/1118808213095424000 via @_MathiasD
<kmath> <M_Panneau> Petite explication détaillée sur la lasergrammétrie et sur #NotreDame , la 3D à partir d'un scanner. Merci… https://t.co/Qtq1hsUlvD
<egg|zzz|egg> mofh: something something tweet citation style,
Iskierka has quit [Ping timeout: 198 seconds]
<kmath> <zhuowei> 100% accurate test for checking if you're a nerd: ⏎ How many fountain pen inks can you name, off the top of your head… https://t.co/GLHwqDkdXQ
<egg|zz|egg> mofh: with a video of the belgian beams in place behind the pediment of the northern transept
<kmath> <✔GretchenAMcC> This is a public service announcement that you can now get an International Phonetic Alphabet layout in GBoard (the… https://t.co/uSU1VtQ4Do
Iskierka has joined #kspacademia
Iskierka has quit [Read error: Connection reset by peer]
Iskierka has joined #kspacademia
egg|cell|egg has quit [Remote host closed the connection]
egg|cell|egg has joined #kspacademia
<egg|cell|egg> [zis iz ø najs kibɔʁd]
<egg|zzz|egg> (yes that's a horrible accent :-p)
<mofh> egg|zzz|egg: wasn't the lasergrammetry actually done relatively recently, iirc in 2015?
<mofh> also holy shit (but can we PLEASE have the capability to make custom GBoard layouts without that being utter hell?)
<mofh> (like just let me pick what unicode glyphs I want on the damn layout)
<mofh> egg|zzz|egg: https://twitter.com/zhuowei/status/1118754518500380673 <- interestingly, still none, like despite multiple of my close friends pretty much only using fountain pens at this point i still have never used one somehow.
<kmath> <zhuowei> 100% accurate test for checking if you're a nerd: ⏎ How many fountain pen inks can you name, off the top of your head… https://t.co/GLHwqDkdXQ
<mofh> https://twitter.com/bertrandchazaly/status/1118803645917741056 oh OF COURSE the person in question worked for Leica, lol.
<kmath> <bertrandchazaly> En 2013, Andrew Tallon a enregistré an scanner 3D plus d'un milliard de points dans et autour de la cathédrale. On… https://t.co/RmEMtSnFKO
<egg|zzz|egg> mofh: see the thread, multiple lasergrammetries
<egg|zzz|egg> mofh: most recent and densest being https://twitter.com/bertrandchazaly/status/1118804595545796608, probably in preparation for the works
<kmath> <bertrandchazaly> D'autres opérations de numérisation ont eu lieu. La plus dense, couvrant la charpente de la nef, est celle des entr… https://t.co/YaBS8sjU4G
<egg|zzz|egg> mofh: yeah, it's for Europe Échafaudage https://www.life3d.fr/plans-modelisations-3d-dame-de-paris/
<egg|zzz|egg> mofh: because you have to know what it is you're plonking scaffolding on, that central scaffold was huge
<mofh> Oh, so *that's* what life3d.fr is
<mofh> I'm actually impressed by how many lasergrammetries have been done; like I don't think most other Parisian monuments have gotten that treatment to that extent
<egg|zzz|egg> or most non-parisian cathedrals
<egg|zzz|egg> it's parisian and iconic, so it does get a ton of attention
<egg|zzz|egg> mofh: if you look for GEA life3d you find other stuff they did https://www.youtube.com/watch?v=3twQIkzXjn8
<kmath> YouTube - MAEE - Modelisation 3D Hôtel du Ministre - www.life3d.fr - scanner 3D - Toulouse - Blagnac - Paris
<mofh> I mean Notre Dame gets like what, 12mil tourists/annum?
<mofh> and ooh, this is right up my alley.
<egg|zzz|egg> mofh: have you poked at the IGS
* egg|zzz|egg stares at the results of deмcmc
<egg|zzz|egg> mofh: blaarg, even if i let it play with the initial position and velocity it doesn't go much below 40-50 m
Ellied has joined #kspacademia
<mofh> egg|zzz|egg: I'm wondering why ~50m seems to be a floor that both deмcmc and SA wouldn't converge past
<mofh> egg|zzz|egg: like I'm thinking something about the problem formulation has to be wrong
<mofh> egg|zzz|egg: rofl so I read that, went "okay I must be misunderstanding this, b/c I'm reading this as if there were *beehives* in the roof of Notre Dame?", feed it into gtranslate and uh
<mofh> apparently yes, they are indeed talking about beehives? TIL
<mofh> (Also that is a huge relief then, 200K bees is a huge collection of hives)
Technicalfool has quit [Ping timeout: 198 seconds]
<egg|zzz|egg> mofh: yes, it's bees
<egg|zzz|egg> mofh: three hives
<egg|zzz|egg> mofh: 25 kg/a of honey, sold to the notre dame staff
<mofh> that's a lot of honey, damn.
<egg|zzz|egg> mofh: still very impressed at how quickly they built those supports for the pediment of the northern transept
<_whitenotifier-3d18> [Principia] eggrobin labeled pull request #2138: Rename the Slippist b planet. - https://git.io/fjYpM
<mofh> egg|zzz|egg: I mean, likewise.
<mofh> egg|zzz|egg: I can see why it was necessary and also how it was possible but I'm still impressed.
<_whitenotifier-3d18> [Principia] Pending. Build queued… - 
<_whitenotifier-3d18> [Principia] Pending. Building… - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3557/
* egg|zzz|egg meows at SRP
<_whitenotifier-3d18> [Principia] Success. Build finished. - http://casanova.westeurope.cloudapp.azure.com:8080/job/Principia/3557/
<mofh> SRP?
<galois> SRP: Solar Radiation Pressure
<mofh> oh, right.
<mofh> also why rename Slippist b?
<egg|zz|egg> mofh: Gregrox renamed it
<egg|zz|egg> see the referenced issue
<egg|zz|egg> mofh: maybe i should log the value of χ²/ν in my optimization
<egg|zz|egg> mofh: ν here is 3 * number of fitted positions - number of parameters, right?
<egg|zz|egg> no SRP: χ² = 8.62493e+12 χ²/ν = 1.01113e+10 max error = +9.74680327971289444e+02 m
<egg|zz|egg> !wpn mofh, whitequark, et al.
* galois gives mofh, whitequark, et al. a saber
<mofh> 17:22:49 < egg|zz|egg> mofh: ν here is 3 * number of fitted positions - number of parameters, right?
<mofh> pretty sure, yeah.
<egg|zz|egg> Generation 100; Acceptance: 20 / 120 E0418 19:28:26.393051 9700 solar_radiation_pressure_test.cpp:187] Max : χ² = 3.67285e+10 χ²/ν = 4.3058e+07 max error = +4.80827483364942836e+01 m: {-1.21798850939830862e-07 m s^-2, +2.72705095596999812e-08 m s^-2, +1.24696529670517905e-07 m s^-2}, (+1.45131317594161521e-07 m s^-2, -3.33869610305791374e-08 m s^-2), {{-1.55332874075954752e-01 m, +5.04218726407753282e-02 m
<egg|zz|egg> mofh: χ²/ν = 4.3058e+07 seems a bit high >_>
<egg|zz|egg> though arguably i'm not sure how meaningful it is, i'm deliberately ignoring many things that are going to be above 1σ with the uncertainty CODE have
<egg|zzz|egg> <mofh> interestingly, still none, like despite multiple of my close friends pretty much only using fountain pens at this point i still have never used one somehow. <<< clearly we need to sort that out next time you're around
egg|zz|egg has quit [Remote host closed the connection]
egg|cell|egg has quit [Ping timeout: 190 seconds]
egg|cell|egg has joined #kspacademia
egg|cell|egg has quit [Read error: Connection reset by peer]
egg|cell|egg has joined #kspacademia
<egg|cell|egg> Mofh: [mjau]
<egg|cell|egg> !u ˈ
<galois> ˈ: U+02c8 MODIFIER LETTER VERTICAL LINE
<egg|cell|egg> !wpn whitequark
* galois gives whitequark a newspaper
* whitequark swats mofh with newspaper
egg|cell|egg has quit [Ping timeout: 190 seconds]
egg|cell|egg has joined #kspacademia
egg|cell|egg has quit [Ping timeout: 183 seconds]
egg|cell|egg has joined #kspacademia
egg|cell|egg has quit [Ping timeout: 180 seconds]
<kmath> <ClementSalviani> https://t.co/UQYRlqJexd
<kmath> <pyry> Lutefisk hotline: ya hey, what's the deal now? ⏎ Sven: Ya, we ran out of lutefisk ⏎ Lutefisk hotline: oh jeez ⏎ Sven: oh… https://t.co/hWeISfjjKB
<mofh> https://twitter.com/CNES/status/1118890314721370114 grr I unfortunately do not have access to an HF rig and antenna today :(
<kmath> <✔CNES> C'est la journée mondiale des radioamateurs 📡 Si vous aviez raté nos tweets sur le sujet en février, ils sont ici 👇 https://t.co/xx9UmnKZFH
<mofh> (also I'm amused at how the percentage of my twitter TL that's French is, like, creeping up fairly quickly, lol).
<_whitenotifier-3d18> [Principia] pleroy closed issue #2129: Update the TRAPPIST-1 patch for SLIPPIST-1 0.7.0 - https://git.io/fjqnv
<_whitenotifier-3d18> [Principia] pleroy pushed 2 commits to master [+0/-0/±4] https://git.io/fjO3t
<_whitenotifier-3d18> [Principia] pleroy c0344a1 - Rename the b planet.
<_whitenotifier-3d18> [Principia] pleroy 4f8ff41 - Merge pull request #2138 from pleroy/2129 Rename the Slippist b planet.
<_whitenotifier-3d18> [Principia] pleroy closed pull request #2138: Rename the Slippist b planet. - https://git.io/fjYpM
<egg|zzz|egg> mofh: sholud i zz
<SnoopJeDi> !8
<galois> SnoopJeDi: yes
egg|cell|egg has joined #kspacademia
<UmbralRaptop> !u 🥰
<galois> No info for U+1f970 (I only know about Unicode up to 9.0)
* UmbralRaptop 🔪 galois