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.
* UmbralRaptor feels partially responsible for https://twitter.com/diodebot/status/867529868346617856
<kmath> <diodebot> Geiger-Tesla anti-egglipse duck-conducting tripolar diode
<Iskierka> ... a tripolar diode being a triode, possibly?
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<soundnfury> Iskierka: no, a tripolar diode has only two legs, but conducts in three directions.
<soundnfury> I think it must involve complex-valued current somehow.
* soundnfury gives Iskierka a stellated teapot
<Ellied> that would be a tri-directional diode, no?
<Ellied> I think a tripolar diode would have positive, negative, and ?? poles.
<soundnfury> Ellied: I suppose it could be a circulator?
<UmbralRaptor> red, blue, and green poles.
<UmbralRaptor> (gluonic diode!)
<soundnfury> UmbralRaptor: I'm fairly sure that's not how RGB LEDs work ;)
<UmbralRaptor> No, no. They're totally an application of the strong force!
<soundnfury> "Use the strong force, gluke!"
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<Iskierka> ... going back to that question I don't get it and wikipedia takes a direction I don't follow.
<soundnfury> It's just a simple induction. I even showed you how to make the recurrence relation magically appear
<Iskierka> except I don't follow where that expansion comes from
<soundnfury> multiply out (φ + φhat)(φ^(n+1) - φhat^(n+1))
<soundnfury> then use the fact that φ + φhat = 1 and that φ * φhat = -1
<Iskierka> and where does that first bracket come from?
<soundnfury> It's a thing we pulled out of thin air to try and get something useful
<soundnfury> and we know it equals 1, so we'll be able to work with it
<soundnfury> We're using it to get the next power, it's kinda like difference of two squares.
<Iskierka> ... I stand by that this is nothing like what we've had to do before but the syllabus says this whole question is relevant, so ...
<soundnfury> Iskierka: I still agree that it's a fscking weird thing to ask a compsci to do.
<Iskierka> we have done induction, but never this involved with this much generation of data and funny looking equations. and we do it in the other maths course
<soundnfury> seriously have you actually multiplied out those brackets? from that point on it's really trivial mechanical algebra.
<soundnfury> the only hard thing was guessing that (φ + φhat) might be a good thing to multiply by, and that's just the kind of mathematical intuition that I don't really know how to teach :S
<Iskierka> I was writing them out and I say they're weird in context of suddenly loadsa fractions you're not sure if you need to be keeping in there or what goes where or do I try correlate the 1/rt5 to the rt5 in the equations which is actually possible because φ - φhat = rt5
<Iskierka> it's not the kinda stuff we have in context of computation and it's in no way intuitive looking at that that it actually does give consistent whole number answers and is not just an approximation
<Iskierka> I also say it's way more than 12 minutes of question (as is b preceding it, possibly)
<Iskierka> ... ironically I'd actually say the year before's is nicer, even though it says for that year the similar question part isn't relevant?
<Iskierka> http://studentnet.cs.manchester.ac.uk/assessment/exam_papers/UG_sem2_2014/COMP11212.pdf like we didn't do inequality loop invariants but I have ideas where to start, Q3 there is all directly computation stuff
<Iskierka> anyway I should probably sleep and be doing this tomorrow instead
<soundnfury> Iskierka: it seems like I've communicated poorly
<soundnfury> don't multiply out with the given values of φ and φhat
<Iskierka> I didn't
<soundnfury> just treat them as symbols subject to the identities φ + φhat = 1 and φφhat = -1
<Iskierka> I did, though went through to test the latter
<soundnfury> you shouldn't see a rt5 anywhere (once you've established those identities, which I'm glad to hear you did)
<Iskierka> this does not mean it's in any way intuitive that you can ignore the 1/rt5 surrounding it when this is a 100% curveball question
<soundnfury> you should be able to derive the recurrence φ^(n+2) - φhat^(n+2) = φ^(n+1) - φhat^(n+1) + φ^n - φhat^n
<soundnfury> from which the inductive step naturally follows
<soundnfury> and the basis case is easy, just substitute in n=0 and n=1 into the given equation and show that it gives the correct values of f(n)
<soundnfury> (and of course _that_'s the point at which the rt5 comes in)
<Iskierka> I'd done that at least quite early, figure at least throw some numbers at it even before being certain this f(n) is the previous f(n), as these questions do like to recycle names between parts
<soundnfury> so does it make sense yet, or do I need to walk you through it step-by-step?
<Iskierka> ofc, the lecturer writing the exam changed, so who knows what'll appear.
<Iskierka> I followed it through and it worked and made sense with a starting point. Complaint is purely that any starting point is very poorly indicated and it's not a method expected to be tested in computation
<soundnfury> well, fibonacci is so overplayed - _everyone_ uses it as their go-to example for recursion / induction / etc. - so they probably just expect you to have seen it so many times that you know the 'trick'
<soundnfury> but yeah, 3)c) is definitely a maths question and has bugger-all to do with compsci.
<soundnfury> !wpn Iskierka
* Qboid gives Iskierka a clopen wing
<Iskierka> I've certainly never seen the closed-form version before; I'm ready for correctness, so proof of the actual definition, sure, then this-waitwhatisthis. We not gonna do stuff about termination or anything? Cause this does definitely terminate, can get you a nice loop variant-invariant pair
<Iskierka> but yes, bed and do other papers that get less and less relevant yet somehow easier tomorrow
<kmath> <olivernmoody> When it skulks on a reef And has two sets of teeth ... That's a moray. https://t.co/YoTNyLhGNm
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* UmbralRaptor ? language software.
<UmbralRaptor> So, neither Rosetta Stone nor Duolingo have Bangladeshi as an option.
* UmbralRaptor ? OSX
<UmbralRaptor> Apparently upgrading(?) to Sierra uninstalled Java.
<UmbralRaptor> And it's OSX, so I can't just apt-get it.
* UmbralRaptor sighs, and goes to the Oracle website.
<UmbralRaptor> Ah, DMGs, so consistent in how you work. (not that consistent)
* UmbralRaptor ? Oracle.
<UmbralRaptor> No, I do not want Yahoo as my homepage.
<UmbralRaptor> Oh, the entire JDK is needed to run TOPCAT from the commandline, not just the JRE >_<
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<UmbralRaptor> Anyway, ?? works again.
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<egg> !wpn UmbralRaptor
* Qboid gives UmbralRaptor a principal clutter
<egg> bofh: well if you have Cartesian coords and want to convert to Keplerian elements?
<egg> though if you get the *mean anomaly* that's going to be full of errors/ill-defined near the parabolic case, whereas the time since periapsis is fine
<egg> hmm bofh is zzz again >_>
* egg flattens the earth
<egg> !u ??
<Qboid> U+1F51D TOP WITH UPWARDS ARROW ABOVE (?)
<Qboid> U+1F408 CAT (?)
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<egg> "the Kiwi Sheep Tyranny Combine"
<hattivat> o/ egg
<hattivat> ^ is that some sort of a nightmarish newzealander contraption?
<egg> "the Sub-Tyrant of Shearing in the Otago Region"
<hattivat> combine as in harvester, kiwis and sheeps are self-explanatory I think
<hattivat> thanks, will read after shower
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<kmath> <barrelshifter> flomp https://t.co/QqUufX5wUE
<kmath> <johnregehr> work buddy https://t.co/OzSULLZOBA
<egg> !wa time UTC
<Qboid> egg: current time in UTC: 2:37:53 pm UTC | Thursday, May 25, 2017
<egg> whitequark: https://twitter.com/whitequark/status/867596740190404608 << any details? or lab notebook entry :-p
<kmath> <whitequark> i cooked chicken optimizing for "literally the least amount of effort spent cooking" and accidentally made the most tasty chicken i ever did
<SnoopJeDi> UmbralRaptor, use astropy/matplotlib/seaborn, embrace the ? \o/
<soundnfury> egg, whitequark: that's how I always optimise when cooking ;)
<SnoopJeDi> So, I don't into cosmology, but a nuke friend sent this to me and is quite excited by the prospect: https://arxiv.org/abs/1703.00543
<SnoopJeDi> tl;dr - quantum vacuum fluctuations *are* that large, but they average to ~zero (and a *mumble mumble* resonance biases to slight accelerating expansion)
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<SnoopJeDi> oh right, the upshot: if that's true, you don't need dark energy period.
<Ellied> whoa
<SnoopJeDi> That seems to be the general reaction thus far. I don't know even half as much QFT as I'd have to in order to gauge the sensibility of some of the intuitive jumps they make, but it all seems pretty above-the-belt
<SnoopJeDi> If anything, it's an alarmingly easy to grasp idea
<Ellied> every time I read about cosmology of the quantum vacuum, I have a moment of shock when I realize that all of that is happening right now between my eyeballs and my screen
<SnoopJeDi> Heh, yea. It was a real blastoff moment when "cosmic expansion doesn't happen *in* space" clicked for me, and I tried to mentally picture every piece of me being farther apart from every other piece than the moment before
<Ellied> yeah, what solidified it for me was when I realized you could calculate how much objects even on the human scale moved apart over timel
<Ellied> like, if I'm sitting across a typical table from you, our distance grows by a few nanometers a year
<Ellied> that's the explanation I go for now to respond to the "what is space expanding into?" question.
<soundnfury> !wpn -add:adj expanding
<Qboid> soundnfury: Adjective added!
<soundnfury> !wpn -add:adj stretchy
<Qboid> soundnfury: Adjective added!
<soundnfury> !wpn Ellied
* Qboid gives Ellied a tesseral uranium δ-function
* Ellied backs away quickly
<Ellied> wait, you can't measure hubble expansion in a lab with an interferometer, can you?
<SnoopJeDi> I got into a fierce debate with my ex-postdoc about whether cosmic expansion has a center. I was flabbergasted that he could argue it did.
<SnoopJeDi> well, a center on the manifold
<Ellied> whaaa
<SnoopJeDi> Ellied, I don't think so? I'd assume the errorbars would be a *lot* better if you could
<Ellied> well I mean, your source of photons need not change wavelength with hubble expansion, right? Like, I don't think space getting larger will affect the energy transitions of He-Ne
<Ellied> but it might just be impractical with the amount of different kinds of background noise
<Ellied> vibrations, thermal expansion, etc
<Ellied> and I guess the shortest wavelength you'll get out of a practical laser will be a few hundred nm, while we're talking about roughly 70 pm per meter per year
<Ellied> (I found my Jupyter notebook for that, "a few nanometers" was a gross overestimate of memory)
<soundnfury> Ellied: won't the expansion redshift your laser as it travels through the apparatus?
* soundnfury wonders if that would somehow manage to exactly cancel out so you get nothing
<Ellied> soundnfury: No, since the photons are emitted constantly by a mechanism that is (I think) independent of the expansion, and a single photon only stays in the apparatus for a very short amount of time
<SnoopJeDi> sounds like it'd be a fun read if you wanna stick it on gist Ellied
<Ellied> I think photons only redshift with hubble expansion when they've been traveling through expanding space for eons
<SnoopJeDi> I've been trying to spool up an iypnb-driven blog in lieu of a proper portfolio
<SnoopJeDi> because Nikola is pretty okay as far as flat-file CMS goes
<Ellied> SnoopJeDi: it's nothing much, I just took the best guess for Hubble's constant and converted it from km per second per Mpc to meters per year per meter
<SnoopJeDi> You'd be surprised when it comes to nothing-much, heh.
<SnoopJeDi> Although I should stick the WoW NPC analysis notebook on there too
<egg> !wpn Ellied
* Qboid gives Ellied a tadpole
<Ellied> I guess meters per year per meter is a patently frivolous unit, isn't it? the actual dimensions are just inverse time.
<egg> whee baby amphibian
<Ellied> then again, converting it to Hz would also be pretty silly
* SnoopJeDi pokes egg with T_00
<egg> SnoopJeDi: ??
<SnoopJeDi> egg, an eggciting prospect for maybe-no-dark-energy: https://arxiv.org/abs/1703.00543
<egg> yup, saw your link already
<SnoopJeDi> oh. well, the large-fluctuation business is succintly stated by the authors as |0> being an eigenstate of H, but not T_00
<SnoopJeDi> which is a mode of thinking I'd never considered before: if it's *not* an eigenstate, does that imply it must fluctuate?
<SnoopJeDi> I'm sure there's some really simple Poisson bracket proof of such that has leaked out from the cobwebs between my ears
<egg> Catalan is out!
<SnoopJeDi> Settlers of Catalan
<UmbralRaptor> (may require flash)
<kmath> <DanNerdCubed> Country is on lockdown and the Queen is like "fuck it, I'm gonna go visit some kids in hospital while dressed as Wi… https://t.co/iIpe0oVhMY
<egg> !wpn whitequark
* Qboid gives whitequark a Hermitian circle
<egg> !wpn UmbralRaptor
* Qboid gives UmbralRaptor an associative ship
<egg> !wpn Iskierka
* Qboid gives Iskierka a practical pharmacology
* egg pokes UmbralRaptor with Catalan
<UmbralRaptor> !wpn egg
* Qboid gives egg an antisymmetric pidgin
<UmbralRaptor> At least https://www.nasa.gov/feature/junoteleconference does not require Flash.
<Iskierka> I reaaaaally dislike the diagonalisation argument and using it to prove that there's uncountably many functions. Because, conversely, we have proven that *all* programs* (and therefore computable functions) can be encoded as a single natural number (*that use booleans and natural numbers as variables only)
<Iskierka> so surely by the latter, the number of computable functions *must* be countable
<Iskierka> (functions from ℕ to ℕ, at least)
<Iskierka> (from the practical perspective, all programs involving all datatypes must be countable, as they can all be made into a numerical sequence from converting their binary data to a natural number)
<kmath> <david_kipping> Giants rings + huge number of Trojans as a possible explanation for #TabbysStar on arXiv tonight… https://t.co/l225ip5zLZ
<Iskierka> surely a very large and very dense ring system in that case isn't it?
<UmbralRaptor> The sizes and masses are somewhat questionable.
<UmbralRaptor> And yes, very large.
<Iskierka> seems like it's a way to have a naturally occurring dyson satellite so we don't need to be saying aliens
<SnoopJeDi> I didn't poke at it all that much on Twitter but yes the size/mass seem to be the major critiques
<SnoopJeDi> It does make very specific predictions though, so it's got that going for it
<UmbralRaptor> Yeah.
<Iskierka> either it'll be another clump of activity that we can start looking at over the next few weeks, or 2021 is likely regardless of what it is just because anything big isn't unlikely to have the trojan arrangement
<SnoopJeDi> I feel bad for my astro buddy who sent in a link about it for the happy hour email
<SnoopJeDi> Because it's totally overshadowed by this dark energy hullabaloo
* Iskierka didn't look at that link
<SnoopJeDi> I'll send both out and give her the free-drink bounty, but yea
<SnoopJeDi> It's weird how even free booze can't quite drum up much enthusiasm for anyone to send me some frakkin articles :|
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<egg> UmbralRaptor: go out and observe|stay in and observe through the window|df
<egg> just saw Felger's pet station
<egg> !wpn
* Qboid gives egg a planetary culverin
<UmbralRaptor> egg: go out and observe.
<egg> UmbralRaptor: but I'm principiaing now
<egg> hmm
<egg> UmbralRaptor: go out and observe|stay in and observe through the window|df|principia
<UmbralRaptor> Oh
<UmbralRaptor> Principia then.
<egg> though eventually the build will have run and so will the tests and I can make that pull request
<egg> then I can observe
<egg> UmbralRaptor: but what should I observe
<UmbralRaptor> Saturn?
<egg> can do that, but scope not great at planetary work
<egg> I should get a cat
<egg> or a newt?
<egg> are there any other animals that are scopes
<egg> building principia on linux takes ages >_<
<egg> tests running...
<egg> !seen majiir
<Qboid> egg: I last saw Majiir on [23.05.2017 23:36:10] in #kspmodders saying: "live*"
<egg> !wpn UmbralRaptor
* Qboid gives UmbralRaptor an iron cocycle
<egg> principia#1400
<Qboid> [#1400] title: All NaNs are almost equal | but some NaNs are less equal than others.... | https://github.com/mockingbirdnest/principia/issues/1400
<UmbralRaptor> A 20 cm cat with a sidereal drive is fun.
<UmbralRaptor> Still early for summer DSO…
<UmbralRaptor> Leo triplet? *ducks*
<egg> UmbralRaptor: hmm, I should considery buying a kitty then
<SnoopJeDi> 20 cm is a pretty tiny kitty
<UmbralRaptor> M64? M87? M104?
<egg> UmbralRaptor: but there's the issue of the finder
<egg> my finder is big, how do I fit it on the mount
<egg> probably can't attach it to a 20 cm kitty
<UmbralRaptor> SnoopJeDi: diameter, not length. >_>
<SnoopJeDi> s/tiny/terrifying/
<Qboid> SnoopJeDi meant to say: 20 cm is a pretty terrifying kitty
<UmbralRaptor> egg: so it would need to be a 30-35 cm kitty?
<egg> "diameter of a cat" returns "Corneal thickness and diameter in the domestic cat"
<egg> UmbralRaptor: nah I don't think that's reasonable, at that size it'd be too cumbersome to get out on a whim
<egg> UmbralRaptor: but I guess the finder would have to be side-mounted on a plate?
<UmbralRaptor> Something something dovetail.
<egg> my finder is 80 mm
<egg> yes it has a bigger aperture than the ANBOscope >_>
<egg> UmbralRaptor: this is going to end up being some mechanical monstrosity bolted atop a losmandy isn't it
<UmbralRaptor> Maybe…
<UmbralRaptor> Ultimately the goal should be to see a news article on a new 2 m class scope being commissioned in the mountains outside of Zurich. >:D
<egg> >_>
<Iskierka> thought with the WTF star arxiv thing: wouldn't a planet that large, barring its physical impossibility at non-IR temperatures, also be large enough to create a detectable wobble, even over this period?
<Iskierka> since surely that must have a hell of an impact on the barycentre
<UmbralRaptor> I think so. Not sure how much high precision spectroscopy is available.
<egg> it makes a prediction though, so it's eventually just a case of waiting
<egg> !wpn UmbralRaptor
* Qboid gives UmbralRaptor a sectoral cocycle
<Iskierka> Or going back and seeing if it's in any data that could give wobble given its absurdly large prediction
<UmbralRaptor> !wpn egg
* Qboid gives egg a Hamilton nukular terminal
<soundnfury> !wpn Iskierka
* Qboid gives Iskierka a first/follow espresso
<Iskierka> (and we could always now watch it while waiting for the next trojan pass)
<hattivat> egg: /me sees egg complain about linux
* hattivat is reminded that he never showed egg what his new tricked-out desktop is like ;p
<egg> UmbralRaptor: so I guess I'd need a GM8 to hold that finder + a 20 cm kitty
<Iskierka> interesting throught though: if it is an absurdly large object with a large cloud around it and lots of trojans, that *isn't* completely massive ... nearly Type II civilisation that's completely surrounded a smaller planet and set up shop in the lagrange points
<Iskierka> (for the aliens explanation, anyway)
<egg> hattivat: my desk, custom keyboard, desktop background, laptop background https://goo.gl/photos/Ks9TdaofpEuTerfPA
<hattivat> and right now: http://i.imgur.com/rdBFutt.png
<egg> 3 wavelengths of Andromeda!
<hattivat> egg: sweet keyboard!
* Iskierka changes egg's keyboard layout
<hattivat> I'm still stuck with Microsoft ergonomic, the only Microsoft-branded thing I have anywhere near my desk atm
<egg> hattivat: desktop: PHAT (Hubble ACS F475W+F814W), keyboard: Spitzer MIPS 24 µm, laptop: GALEX FUV+NUV
<egg> Iskierka: it's in dvorak thanks to a physical switch (which means the software can keep believing it's in en-us)
<egg> hattivat: my desktop's hostname is andromeda too :-p
<hattivat> mine is niewolnica dinozaura, a hyper-obscure Polish pun that would be hard to explain
<egg> well andromeda.zrh.corp.google.com
<soundnfury> hattivat: that's a pretty lame uptime you had though, 11:45.
* soundnfury 26 days, 4:02
<hattivat> soundnfury: that's due to steam, it causes my screen to flicker post-hibernation for some reason
<soundnfury> hibernation pah
<Iskierka> I am exactly 6 minutes short of 2 weeks
<Iskierka> not sure why I restarted 2 weeks ago
<Iskierka> ... possibly that might've been the one and only time it ran out of battery and I didn't plug it back in for a few days, given the timing?
<soundnfury> (because I like dark desktops)
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<egg> s/3/5
<Qboid> egg meant to say: 5 wavelengths of Andromeda!
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<egg> UmbralRaptor: so, GM8, and then some sort of plate to hold my finder and a VC200L? I did sort of plan for that, since my finder is mounted on an ad hoc dovetail bar of sorts
<egg> (which gets clamped into an altaz mount
<egg> )
<hattivat> that was weird, I got ninja-disconnected without being notified for a few minutes
<hattivat> was I was trying to say: soundnfury: well, it's a gaming-enabled rig, my electricity bill would not be happy if I kept it on 24/7
<hattivat> egg: I'm impressed by your remembering the exact photo descriptions, my background does not need introduction I think
<hattivat> egg: but I'm more interested in your taskabar, what OS/visuals mod is that?
<soundnfury> hattivat: heh, my system is definitely not built for gaming
<egg> I think it's cinnamon on Ubuntu?
<soundnfury> I'd say it's built for compiling
<egg> hattivat: I'm not the one managing that, I'm busy developing :-p
<hattivat> you mean 64gb of RAM?
<hattivat> egg: ok, I see, the new post-Unity Ubuntu
<hattivat> apparently KSP 1.3 is out
<egg> huh
<hattivat> with more i18n
<egg> (goodness this is going to be done terribly isn't it)
<hattivat> that's what I was about to say ;p
<egg> (but now I know how to do it sort-of-properly)
<egg> (so I can cry more)
* egg proceeds to ignore this release
<hattivat> oh come on, it's the intention that count, blah, blah
<egg> ain't gonna move to that right now, otherwise RSS/RO will never catch up with me
<hattivat> s/intention/intentions
<Qboid> hattivat meant to say: oh come on, it's the intentions that count, blah, blah
<hattivat> that much is true
<soundnfury> hattivat: nah, only 8. It's built for compiling C, not C++ :P
<hattivat> RO seems woefully behind-the-times
<hattivat> part of the reason why I descided to come back
<hattivat> soundnfury: then what's special about it?
<egg> hattivat: well, I blame the de-NKing
<soundnfury> hattivat: it's MINE, that's what's special about it :P
<hattivat> am I the only person whose brain has a problem deciding between "NathanKell" and "North Korea" whenever they see NK?
<Iskierka> I did think best korea when reading that
<hattivat> soundnfury: ok, but you said it was built for compiling, now it just sounds like a regular pet desktop ;p
<hattivat> ok, so I am not the only having trouble parsing that
<UmbralRaptor> hattivat: Don't forget Nikolai Kuznetsov.
<soundnfury> hattivat: sure, it's not anything special, I'm just saying that to the extent it's optimised for anything, it's that
<hattivat> I recall seeing someone say "You are wrong about NK" in a mildily politically-charged discussion on #RO a few days ago
<hattivat> that one sent me English parser into an infinite loop
<hattivat> s/me/my
<Qboid> hattivat meant to say: that one sent my English parser into an infinite loop
<soundnfury> (so, for instance, it doesn't have a graphics card, but it does have an SSD for not-/home)
<hattivat> ah, I get it, so it's more about not having unnecessary stuff
<soundnfury> mmm
<hattivat> yeah, so mine does have a GPU, a rather big one, plus an unlocked i5 that is also rather power-hungry
<soundnfury> i5-3330 here. No idea whether that's good :S
<hattivat> well, the number sure brings back memories
<hattivat> although more of the voicecall-enabled-brick kind
<hattivat> soundnfury: not very, according to userbenchmark, 50% slower than modern models even in single core
<hattivat> wait, 33% slower, silly me
<hattivat> the new ones are 50% faster
<hattivat> anyway, I imagine it is more than adequate
<soundnfury> hattivat: indeed
<hattivat> progress in CPUs has been rather pitiful for years now, little reason to upgrade unless you need to anyway
* soundnfury gives hattivat a slow winter
<hattivat> in GPUs on the other hand, progress has been explosive
<hattivat> just checked, the difference in a similar time frame is 200%
<hattivat> so 4x faster progress than on the CPU front
<egg> !wpn UmbralRaptor
* Qboid gives UmbralRaptor a Ritchey-Chrétien hug
<egg> !wpn hattivat
* Qboid gives hattivat a quartic actinium statistic
<egg> !wpn Iskierka
* Qboid gives Iskierka a sinusoidal diprotodon/photomultiplier tube hybrid
<UmbralRaptor> Aww...
* UmbralRaptor hugs the telescope back.
<hattivat> gtx 560 vs gtx 1060 - 6 times the memory, 6 times the pixel-filling rate, over 3 times the GFLOPS, over 2 times the texture rate, twice the memory clock speed, and 60% higher general clock speed
<hattivat> !wpn egg
* Qboid gives egg a starboard wyvern
<egg> UmbralRaptor: ... should I buy a ritchey-chrétien instead of a kitty >_>
<UmbralRaptor> This is far outside of where I can meaningfully budget. =\
<Iskierka> well egg is now on google budget
<egg> UmbralRaptor: well it's the same price range, so the budgeting isn't the issue
<hattivat> what sort of a kitten is that?
<egg> VC200L
<egg> and probably a Ritchey-Chrétien of similar diametre as the comparison?
<UmbralRaptor> Wait, have we eggsplained enough that hattivat gets the cat jokes in the /topic?
<egg> hmm
* soundnfury gives egg a diopterosaur
<hattivat> I'm afraid I might not
<egg> UmbralRaptor: speaking of /topic jokes, do we have a way of recomputing your quotes file
<UmbralRaptor> I'd need to go through someone's logs.
<hattivat> especially given that egg posted several literal kittens today, so it doesn't seem outside of the realm of possibility for him to contemplate acquiring one
<UmbralRaptor> hattivat: Okay, catadioptric telescopes (mirror + lense components) get shortened to cats.
<egg> UmbralRaptor: there are the Thomas-whitequark logs
<UmbralRaptor> A similiar combination of reflective and refractive optical elemnts exist in the eyes of a number of animals. Notably felidae, dogs, and spiders.
<UmbralRaptor> Therefore dogs are cats, and as spiders have 8 eyes, they must be cat interferometers.
<hattivat> egg: that sounds almost like the Thomas-whitequark codex
<hattivat> UmbralRaptor: ok, that should be enough to follow, thanks!
<UmbralRaptor> The telescopic cats are Schmitt-Cassegrain and Maksutov-Cassegrain, usually. The important difference is that SCTs have a thin lens with fancy curveture, and MCTs (aka Maks) have a thick lens and can in principle be made from all spherical optical elements.
<hattivat> egg: btw, I just noticed that in the picture of your work desk
<hattivat> there is an absurdly position chair behind your desk
<hattivat> is that the back-end developer's seat? ;p
<egg> hattivat: that's the director's chair (my manager's manager)
<egg> my manager is far away, but the director happens to be facing me
<egg> and he has a standing desk
<egg> which is why his chair is visible
<egg> UmbralRaptor: hm, the kitty would be lighter, so that's nice
<Iskierka> ... I am unconvinced of this list of relevant questions which says a 3)f) is relevant on a paper that doesn't have 3)f)
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<egg|df|egg> UmbralRaptor: so what should I use to bind my books
<Iskierka> dwarfskin leather
<egg|df|egg> sadly can't bind books in leather somehow
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<Iskierka> ... surely that is the first thing you would look to?
<Iskierka> interestingly, they did not mess up which year the 3)f) is supposed to be attached to (in the general case at least), as the year before in both relevance and actual paper is the one with more than 4 questions
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<egg|df|egg> hattivat: what should I bind my books with in dwarf fortress
<egg|df|egg> (bone and leather are not options, metals, stones, wood, and glass are)
<hattivat> egg|df|egg: is mercury an option?
<hattivat> or antimony? ;p
<egg|df|egg> nah; stibnite or cinnabar would be if I had any, but there isn't any around here
<egg|df|egg> I have marble
<egg|df|egg> I have shitloads of gold too
<egg|df|egg> and I can probably produce green glass
<hattivat> you could also vary it by topic
<hattivat> gold for neat ones
<hattivat> lead for the nastier titles
<hattivat> and uranium for evil grimoires
<egg|df|egg> I don't have lead, and I don't think uranium is a thing in DF
<egg|df|egg> hattivat: also the books are mostly treatises written by scholars
<hattivat> I don't know what elements are a thing in df, just taking wild guesses
<UmbralRaptor> Pitchblende is a thing.
<egg|df|egg> e.g. Anatomy the easy way, Time spent with the elements, After the lens, The study of the solution...
<egg|df|egg> UmbralRaptor: ah yes; haven't encountered any though
<UmbralRaptor> Dwarven nuclear reactors "should" be a thing.
<hattivat> indeed
<hattivat> especially thorium ones
<hattivat> egg|df|egg: well then, if the above-mentioned dwarven skin is out of the question, then gold sounds good to me
<hattivat> although it would make for a bloody impractical book IRL
<egg|df|egg> "breathing in the modern era"
<egg|df|egg> hattivat: what about glass
<egg|df|egg> or wood
<Iskierka> tbf dwarves have perpetual motion machines so nuclear power isn't that necessary
<egg|df|egg> waxing and waning: before and after
<hattivat> egg|df|egg: glass sounds absurd enough to be appealing
<hattivat> wood sounds like my gf's grandpa's stories about having to him having to mash up a wooden backpack for school by himself
<hattivat> s/having to him/him having to
<Qboid> hattivat meant to say: wood sounds like my gf's grandpa's stories about him having to having to mash up a wooden backpack for school by himself
<egg|df|egg> in the codices that have been brought by other scholars there are plenty of weird bindings: chromite, pipe opal, indigo tourmaline, native aluminium, nickel silver...
<egg|df|egg> UmbralRaptor: I do have a book bound in pitchblende
<hattivat> native aluminium sounds cool, whatever it is
<egg|df|egg> My Thoughts on the Cave of Crewing, a 376 page book on the Cave of Crewing
<egg|df|egg> 3 chapters
<egg|df|egg> 1. the rise of a troll as an enemy of the cave of crewing
<egg|df|egg> (in the early autumn of year 3)
<egg|df|egg> 2. the devouring of a llama by a hydra in the early spring of 31
<hattivat> hahaha
<egg|df|egg> 3. the rise of a cougar as an enemy of the cave of crewing in the midspring of 61
<egg|df|egg> "overall, this is a good source of information"
<egg|df|egg> pitchblende-bound codex \o/
<hattivat> so ~120 pages about a hydra devouring a llama
<egg|df|egg> yup
<hattivat> that must be one long-winded description
<hattivat> I imagine it goes into the tiniest gory details
<egg|df|egg> hattivat: UmbralRaptor: there are plenty of parchment scrolls too, and there you can have exotic skins
<hattivat> or just uses a very large font
<egg|df|egg> Useful bandages, a racoon parchment scroll
<UmbralRaptor> egg|df|egg: studies on $animal bound in $animal's skin!
<egg|df|egg> UmbralRaptor: but you can't bind them, only make parchment scrolls
<UmbralRaptor> bah
<egg|df|egg> the racoon scroll's rollers are made of cryolite
<egg|df|egg> mostly I've been writing on rope reed quires
<egg|df|egg> so plenty of stuff that needs binding now
<egg|df|egg> ... there's a talc-bound codex
<egg|df|egg> it's a 1-page essay
<egg|df|egg> The meaning of honesty
<egg|df|egg> concerns the value of truth
<hattivat> I imagine the reader quickly learns the value of things
<hattivat> if it is literaly talc-bound
<hattivat> especially if you operate with the 'you broke it, you bought it' policy ;p
<egg|df|egg> hattivat: tbh if I start gold-binding my books I'll have issues with dwarves getting slow
<egg|df|egg> they regularly borrow stuff from the library
<egg|df|egg> (even the troops)
<egg|df|egg> (yes, they go to battle with treatises on astronomy)
<soundnfury> egg|df|egg: seems entirely appropriate
<egg|df|egg> if they're carrying a quire it's fine, if they're hauling a gold-bound codex (more than 19x heavier) it's a problem
<hattivat> egg|df|egg: well, that means your colony is a successful civilization as far as I am concerned, very commendable
<egg|df|egg> "two humped camel parchment scroll"
<hattivat> so maybe just use some skin then, I assume it is light?
<egg|df|egg> skin isn't an option to bind things
<egg|df|egg> yes I know it's daft
<egg|df|egg> you can't bind things in leather
<egg|df|egg> uh oh a child has been fighting with a racoon