egg changed the topic of #principia to: Logs: https://esper.irclog.whitequark.org/principia | <scott_manley> anyone that doubts the wisdom of retrograde bop needs to get the hell out | https://xkcd.com/323/ | <egg> calculating the influence of lamont on Pluto is a bit silly…
<queqiao-> ⟨e​gg⟩ the scribe of the Rhind papyrus is an obvious candidate at least
<queqiao-> ⟨e​gg⟩ that would be 𓇹𓄟𓋴𓏲, jꜥḥ-ms.w depending on transliteration
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ Do you remember how long ago the oldest person referenced in a version name lived?
<raptop> Unfortuantely, the naming scheme does not allow for copper merchants
<egg|anbo|egg> no, but maybe 𒁹𒆠𒁷𒉡
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ Yo my name is indic
<queqiao-> ⟨e​gg⟩ yes, but it is not a Principia version man
<queqiao-> ⟨e​gg⟩ yes, but it is not a Principia version name (edited)
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ yea "Junglic Man" wouldn't be a good version name
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<egg|anbo|egg> !u 𒂷 𒋖
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<_whitenotifier> [Principia] Growflavor edited a comment on issue #3064: possible steady memory increase potentially leading to KSP instability/slowness/unusual texture lighting/slow crash - https://git.io/JulEj
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<_whitenotifier> [Principia] Growflavor edited a comment on issue #3064: possible steady memory increase potentially leading to KSP instability/slowness/unusual texture lighting/slow crash - https://git.io/JulEj
<_whitenotifier> [Principia] Growflavor edited a comment on issue #3064: possible steady memory increase potentially leading to KSP instability/slowness/unusual texture lighting/slow crash - https://git.io/JulEj
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<queqiao-> ⟨l​pg⟩ the new frame selector is tiny and wonderful
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ yo is there a place/book where i can get a mathematical introduction to orbital mechanics?
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ i know ODEs and Linear algebra
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ The book that the cat is looking at in the oldest pinned message
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ The book that the cat is looking at in the oldest pinned message is what egg normally recommends (edited)
<raptop> In how much detail?
<raptop> eg: Capderou 2012 is a good choice if you already know how keplerian orbits work
<raptop> (also patched conics, etc etc)
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ I have 0 knowledge of mechanics
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ other than some basic college level physics classes i took in highschool
<raptop> Okay, the standard intro textbook recommendation is Fundamentals of Astrodynamics, though http://www.braeunig.us/space/orbmech.htm and the like can act as a starting point
<raptop> The latter probably to the annoyance of the prolate spheroid due to it not getting into derivations at all
<queqiao-> ⟨B​uilderbast⟩ Is that also anderson?
<raptop> Lack of mechanics is a problem, since you'll want at least some idea of: newtonian mechanics (please don't stab me), and lagrangian/hamiltonian mechanics
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ I thought it was oblate?
<raptop> No, no. Planets are oblate. Egg is prolate
<raptop> (...which leads to a question of what we call "egg-shaped" not actually being shaped like an egg)
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ Oh, I thought you meant that they assumed perfect spheres for planets and that messed up the calculations slightly
<queqiao-> ⟨B​uilderbast⟩ Funniest astro dynamics word i saw today: semi latus rectum
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ well i get Newtonian mechanics but not Lagrangian/Hamiltonian
<queqiao-> ⟨B​uilderbast⟩ Funniest astro dynamics term i saw today: semi latus rectum (edited)
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ Earth is slightly egg shaped; the tropics of southern hemisphere are a few meters above the WG84 ellipsoid on average
<raptop> Hamiltonian mechanics is eggstremely intuitive when you realize that Henergy is just a function of qosition and pomentium
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ Wouldn't experience with KSP give a bit of a head start for that introduction?
<raptop> It would
<queqiao-> ⟨l​pg⟩ except for all the wrong lessons learned along the way
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ The hardest wrong lesson to relearn is just terminology
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ Which one
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ ~~ The one that you can access for free online ~~
<queqiao-> ⟨*​ਜੰਗਲੀ ਆਦਮੀ*⟩ well i can access all of them
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ I'm guessing the third one
<raptop> Bate/Muller/White, I'm pretty sure that the 1st 3 are actually the same book
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ The first two are; the third might be a later edition
* raptop wants to say that the 2nd edition might have finally gotten published, but it's not clear to me that the differences would be meaningful
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ There is also a libretexts book/pdf on celestial mechanics, but that may not be good quality, as CaravansOfRockets showed that one libretext physics book/pdf was full of mistakes
<queqiao-> ⟨r​ocketman⟩ I have that one
<queqiao-> ⟨r​ocketman⟩ as a physical copy, but I'm sure you could find an online pdf of fundamentals of astrodynamics
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<_whitenotifier> [Principia] Growflavor edited issue #3064: "Flight Plan UI" associated steady memory increase (~1GB per 20 minutes) on some machines leading to KSP instability/unusual texture lighting/slow crash/system out of memory - https://git.io/JW4cN
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<queqiao-> ⟨l​amont⟩ orbital mechanics for engineering students
<queqiao-> ⟨l​amont⟩ (if you type that into duckduckgo/bing it pops up with a PDF, although i think to an older version)
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<queqiao-> ⟨e​gg⟩ Note that Capderou does start with the basics (Kepler orbits, then introduces Hamiltonian mechanics, etc.), so it is a nice treatment
<raptop> oh, nice
<queqiao-> ⟨e​gg⟩ (there is an English version, titled *Handbook of Satellite orbits: From Kepler to GPS*)
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<raptop> Does ANBOcat agree on Capderou's treatment of Hamiltonian mechanics?
<queqiao-> ⟨S​paceman Spiff⟩ my goodness what a knowledgeable cat
<queqiao-> ⟨G​rowFlavor⟩ nice....yes, the purple noodles mesmerize me
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<queqiao-> ⟨O​bamium [RealPlume gang]⟩ Something tells me the bot is basically an alt account for the dev
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ Egg is able to use the IRC, but there is no reason to believe that egg is raptop
<queqiao-> ⟨(​ᴇxᴘᴇʀɪᴍᴇɴᴛᴀʟshells)⟩ it has been 348 days since the same was said about me
<queqiao-> ⟨P​aculino (ŝi/ri/she/they)⟩ Well, it is not something bad to be accused of
<queqiao-> ⟨A​l2Me6⟩ Nah that’s a downright compliment
<queqiao-> ⟨A​l2Me6⟩ And a fairly high one at that
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