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…
_whitelogger has joined #principia
_whitelogger has joined #principia
<queqiao-> ⟨xlier20⟩ guys
<queqiao-> ⟨xlier20⟩ i cant get principia to run in ksp with my laptop
<queqiao-> ⟨xlier20⟩ how do i make it work
<queqiao-> ⟨xlier20⟩ i want it because
<queqiao-> ⟨xlier20⟩ it would be fun to set a grand tour style thingy
<queqiao-> ⟨xlier20⟩ idc about proformance
<queqiao-> ⟨xlier20⟩ it would be fun lol
<queqiao-> ⟨xlier20⟩ game is open-
<queqiao-> ⟨xlier20⟩ i fixxed it
<queqiao-> ⟨xlier20⟩ time to PLAY!
<queqiao-> ⟨xlier20⟩ time to pray the tracking center wont-
<queqiao-> ⟨xlier20⟩ oh thank god
<queqiao-> ⟨xlier20⟩ it didnt crash
<queqiao-> ⟨xlier20⟩ welp to rp1 general now
<queqiao-> ⟨butcher6994⟩ xlier20 rule 1
<queqiao-> ⟨xlier20⟩ alright then
<queqiao-> ⟨egg⟩ xlier20 Please take some time to carefully read the July 2020 addendum to the rules, here: https://discord.com/channels/319857228905447436/332187198009114626/735050416605102172
<queqiao-> Splitting sentences over many messages makes the backlog very annoying to read (and for those who follow some channels closely and have them set to notify, it causes an obnoxious flurry of pings for nothing).
<queqiao-> ⟨patrikcath⟩ ⟪xlier20⟫ it would be fun to set a grand tour […] ⮪ (you can do that without principia)
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<queqiao-> ⟨issproxima⟩ So here's method of making spaceplane insulation tiles that perfectly fit the space of a vessel: By using a conformal decal part, set PhysicsSignificance=0 and increases the surface temp cap.
<queqiao-> However, the setting PhysicsSignificance=0 would cause issue with Principia physics such as wired attitude adjustments
<queqiao-> ⟨issproxima⟩ Is there a way around this issue?
<queqiao-> ⟨issproxima⟩ So here's method of making spaceplane insulation tiles that perfectly fit the space of a vessel: By using a conformal decal part, set PhysicsSignificance=0 and increases the surface temp cap.
<queqiao-> However, such setting PhysicsSignificance=0 would cause issue with Principia physics such as wired attitude adjustments
<queqiao-> ⟨issproxima⟩ Those number can be tweaked so it's not 🧀
<queqiao-> ⟨test_account9540⟩ How is it not cheese to insulate a spaceplane with conformal decals?
<queqiao-> ⟨test_account9540⟩ They don't even represent a part, they represent paint
<queqiao-> ⟨issproxima⟩ It
<queqiao-> ⟨issproxima⟩ It's a "makeshift" make since we don't actually have insulated tiles
<queqiao-> ⟨issproxima⟩ * part
<queqiao-> ⟨test_account9540⟩ But tiles would add mass and cost
<queqiao-> ⟨issproxima⟩ As it should be if I'm gonna use it on career
<queqiao-> ⟨issproxima⟩ But the problem here is not whether it being cheese
<queqiao-> ⟨issproxima⟩ It's the wired interaction with principia
<queqiao-> ⟨issproxima⟩ thus being asked in this channel
<queqiao-> ⟨issproxima⟩ But the problem here is not whether it being 🧀
<queqiao-> ⟨blothorn⟩ (And again. “Shielded” tanks are supposed to represent tanks with thermal protection. They’re inaccurate in that it’s not directional, but I don’t think that’s really exploitable.
<queqiao-> ⟨moar ssto⟩ Can anyone explain why there even is such a large difference in rotation physics with or without principia？ Does it do part CoM and inertial tensor calculations independently from what ksp does？
<queqiao-> ⟨Kirk (He/Him)⟩ ⟪moar ssto⟫ Can anyone explain why there even is […] ⮪ KSP calculates angular momentum wrong
<queqiao-> ⟨Kirk (He/Him)⟩ To be more specific, the generic physics engine KSP uses (PhysX) calculates angular momentum wrong because some computer scientist did math wrong 30 years ago and fixing it would break stuff
<queqiao-> ⟨moar ssto⟩ Okay，though that doesn't quite explain the change in attitude stability of some crafts，both methods should spit out an angular momentum close to zero
<queqiao-> ⟨Al₂Me₆⟩ What kind of craft? Can you show a video?
<_whitenotifier-1adf> [Principia] pleroy opened pull request #3739: A variant of BFGS that takes the directional derivative - https://github.com/mockingbirdnest/Principia/pull/3739
<_whitenotifier-1adf> [Principia] pleroy opened pull request #3740: Fix the diurnal build - https://github.com/mockingbirdnest/Principia/pull/3740
<_whitenotifier-1adf> [Principia] pleroy closed pull request #3732: Only allow window shrinking when safe - https://github.com/mockingbirdnest/Principia/pull/3732