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> "Now if we have only one quark in the Universe---we turn everything else off---it has inside it *three* degrees of freedom, up, down, and strange"
* egg|zzz|egg stares at whitequark
<bofh> Binomial's Theorem ROFL
<bofh> anyway I've been reading these notes and honestly this is a course I'd love to *teach* someday, it's magnificent
<egg|zzz|egg> bofh: so sadly I don't think I have the prof-provided notes in electronic form
<bofh> Oh of course it's Trubowitz
<egg|zzz|egg> oh you know about Trubowitz? :D
<egg|zzz|egg> bofh: I have printouts of things tho
<bofh> YEP :D
<bofh> also rofl at Lemma ("Your life in Fourier land depends on it.")
<bofh> I am so stealing that
<egg|zzz|egg> paving the way for new generations of trubowitzes I see :-p
<egg|zzz|egg> bofh: his last course here was about the БКЛ conjectures
<egg|zzz|egg> specifically, proving them for homogeneous spacetimes
<egg|zzz|egg> bofh: also about bashing penrose at every turn
<bofh> egg|zzz|egg: so like I know Trubowitz from https://link.springer.com/chapter/10.1007/978-3-0348-9078-6_63 which I think was the 1994 ICCM Plenary in Zürich?
<bofh> hey bashing Penrose isn't hard
<bofh> yes this is a real book
<bofh> yes, Penrose co-authored a book with Deepak Chopra. yes, *that* Deepak Chopra. yes, it is atrociously horrible.
<egg|zzz|egg> "They adroitly sidestep the problem of defining what a singularity acturally is, by saying it is the 'place' where their light rays end. The proofs of incompleteness theorems are not hard. That's good. Unfortunately, they are by their very nature completely non constructive and provide no quantitative information at all about what a 'singularity' really looks like."
<bofh> IV. Uncertainty Principle, Parallel Universes, Wave Functions, Entanglement, Violations of Causality, and Paradoxes of Time Travel 21. Multiverse Scenarios in Cosmology: Classification, Cause, Challenge, Controversy, and Criticism 22. Classical Anthropic Everett Model: Indeterminacy in a Preordained Multiverse 23. Cosmology, The Uncertainty Principle, Wave Function, Probability, Entanglement, and
<bofh> Multiple Worlds 24. Logic of Quantum Mechanics, ...
<bofh> ... Parallel Worlds and Phenomenon of Consciousness
<bofh> yes these are real chapter titles from it
<bofh> egg|zzz|egg: LOL
<Fiora> bofh: ........ . really
<Fiora> woooow
<Fiora> i hope he got paid really well for that.
<egg|zzz|egg> o/ Fiora
<egg|zzz|egg> !wpn Fiora
* Qboid gives Fiora a combustion LALR(1) ghost
<Fiora> yes hi
<UmbralRaptor> Welcome back
<bofh> Fiora: oh in case you were wondering if the chapter contents are as insane as the titles, no, they're not.
<bofh> they're *more* insane
<bofh> like the whole thing is a masterful trainwreck of sciency-sounding new-age woo and unprovable assertions pulled out of someone's arse
<egg|zzz|egg> !%!@$#$%^# why didn't I save those pdfs from trubowitz's lectures
<Fiora> oh, i mean, it's deepak so i would have assumed that.
<UmbralRaptor> Does it include the Final Anthropic Principle?
<bofh> "#251 in Books > Science & Math > Physics > Quantum Theory"
<Qboid> [#251] title: A piece of paper. | Fixes #239.... | https://github.com/mockingbirdnest/principia/issues/251
<bofh> I FUCKING OBJECT
<bofh> egg|zzz|egg: damn
<egg|zzz|egg> bofh: I have printouts only afaict
<Fiora> whenever i think of the final anthropic principle i think of Timelike Infinity
<Fiora> which has a cult that has theorized that the final observer, at time infinity, has the ability to choose the ultimate path of all of history by choosing how the wavefuntion collapses
<UmbralRaptor> Yay, Xeelee.
<Fiora> (see, quantum woo DOES make for good fiction.....)
<egg|zzz|egg> would it be worth dropping contextuality by switching to Bohm's interpretation to get rid of that crap >_>
<egg|zzz|egg> (uh, noncontextuality that is)
<bofh> Fiora: hey that does sound like an actual interesting fiction idea
<Fiora> baxter novels are basically Hey, What If I Wrote A Novel Based On This Entire Stack Of Interesting Physics Fiction Ideas
<Fiora> there's also one where an entire civilization lives inside a neutron star crust.
<bofh> oh man the Baxter/Clarke novels I read were pretty interesting
<bofh> but yeah, I think Baxter is one of my fav SF authors
<bofh> and then there's Greg Egan, which is in a class all of their own.
<bofh> egg|zzz|egg: you should read Egan's Luminous, it's a short SF story around mathematics
Majiir is now known as Snoozee
<bofh> Fiora: actually that cult reminds me a bit of https://en.wikipedia.org/wiki/Schild%27s_Ladder
<egg|zzz|egg> @$%@#$ where did I put the БКЛ lecture notes
<bofh> man I'm rereading Luminous right now and holy shit I forgot how much I liked it
e_14159- has joined #kspacademia
e_14159 has quit [Ping timeout: 383 seconds]
e_14159- is now known as e_14159
<Fiora> bofh: i should really read schild's ladder sometime
<egg|zzz|egg> !choose look for the БКЛ notes in the attic tomorrow morning|why do I only have that stuff on paper|aaaaaaaaa
<Qboid> egg|zzz|egg: Your options are: look for the БКЛ notes in the attic tomorrow morning, why do I only have that stuff on paper, aaaaaaaaa. My choice: aaaaaaaaa
<egg|zzz|egg> ;choose look for the БКЛ notes in the attic tomorrow morning|why do I only have that stuff on paper|aaaaaaaaa
<kmath> egg|zzz|egg: aaaaaaaaa
<egg|zzz|egg> aaaaaaaaa
<bofh> long screaming, I see
<bofh> Fiora: you *might* like the short story I linked too, tho I don't know if foundational mathematics science fiction is your thing. OTOH, it's only 30 pages so.
egg has joined #kspacademia
<egg> !u
<Qboid> What code point do you want me to look up?
<egg> א
<egg> !u א
<Qboid> U+05D0 HEBREW LETTER ALEF (א)
<egg> whitequark: I think you meant to use ℵ https://twitter.com/whitequark/status/902117862801735680
<kmath> <whitequark> @oshepherd @softfennec @gsuberland @hikari_no_yume @parport0 א₀
<egg> bidi madness \o/
egg|zzz|egg has quit [Ping timeout: 383 seconds]
<kmath> <EmilyGorcenski> "Em, you got a page. Someone is trying to riemann integrate over countable discontinuities" "Ugh, have you spun up a lebesgue integral?"
egg is now known as egg|zzz|egg
<egg|zzz|egg> !wpn bofh
* Qboid gives bofh a completely harmless hug
<bofh> :D
xShadowx has quit [Quit: KVIrc 4.9.2 Aria http://www.kvirc.net/]
xShadowx has joined #kspacademia
Technicalfool is now known as TechnicallySleeping
<egg|zzz|egg> !wpn whitequark
* Qboid gives whitequark a ytterbium tardigrade-like ſtabber
<G-Mobile> fun fact, if you take the character codes for the chinese characters life and death, in a system I don't remember, and XOR them, you get the character code for the chinese character for love
<G-Mobile> fun fact, if you take the character codes for the chinese characters cat and dog, in UTF8, and XOR them, you get the kanji for cook, or oven
egg|work|egg has quit [Ping timeout: 180 seconds]
egg|work|egg has joined #kspacademia
<Iskierka> The Sprint missile qualifies as a torchship by atomic rocket's definition (assuming it meets at least 200 seconds Isp)
<Iskierka> at least the first stage does. second stage would need to hit 600s to qualify
<Qboid> 2d 0h 0m 0s left to event #7: IRNSS 1H/PSLV-XL [at 2017-08-31 13:29:00]. Say '!kountdown 7' for details
TonyC1 has joined #kspacademia
TechnicallySleeping is now known as Technicalfool
<kmath> <arcosphere> Surely there are more humane ways of giving academics their retirement. https://t.co/TgEa5Pv2Id
<egg|work|egg> D:
<SnoopJeDi> UmbralRaptor, did you see that LEGO Grad Student filed their dissertation? :D
<UmbralRaptor> I did not. Grats to them!
<SnoopJeDi> Iskierka, that doesn't look like pressure differential to me!
<Iskierka> they're distorted from original shape
* UmbralRaptor is struck by how many sites don't really load when throttled to 128kbps,
* UmbralRaptor ? blackboard
* egg|work|egg gives UmbralRaptor a blackboard
* egg|work|egg gives UmbralRaptor a stabby chalk
* UmbralRaptor ? ?
<Iskierka> why are you throttled to two dialup connections?
<UmbralRaptor> I used all 6 GiB of my plan.
regex has joined #kspacademia
<egg|work|egg> note to egg: have a look at A method of symplectic integrations with adaptive time-steps for individual Hamiltonians in the planetary N-body problem
* UmbralRaptor is starting to think galaxies are all standing waves. http://abc13.com/2347003/
<UmbralRaptor> er
<SnoopJeDi> CERN LIGO colloquium in ~5 min https://webcast.web.cern.ch/event/i656490
<bofh> win 24
<UmbralRaptor> irssi typo detected
<SnoopJeDi> I only recently discovered <mod>+qwerty to access windows 11-20, mindblown.gif
<UmbralRaptor> webcast isn't loading.
<SnoopJeDi> Yea it seems to not work, which is a shame :(
TonyC1 has quit [Ping timeout: 195 seconds]
* UmbralRaptor can haz edurome access.
egg|phone|egg has joined #kspacademia
<egg|phone|egg> !kd next
<Qboid> egg|phone|egg: ID: 7 | Name: IRNSS 1H/PSLV-XL | Time: 2017-08-31 13:29:00 | Unixtime: 1504186140 | Left: 1d 18h 49m 50s
<Qboid> egg|phone|egg: Description: A PSLV-XL rocket will launch the I-1K-based IRNSS 1H navigation satellite (http://space.skyrocket.de/doc_sdat/irnss.htm) from Satish Dhawan Space Centre First Launch Pad into a geosynchronous orbit with a 29° inclination
<kmath> <elakdawalla> Niebur: "Enceladus has no business existing. It is screaming ... 'I completely invalidate all your assumptions about the solar system.'"
<bofh> that's a fairly high inclination.
<bofh> UmbralRaptor: <shrug> there's cryovolcanism on Triton, I honestly don't think volcanic activity on moons is at all unusual.
<bofh> Enceladus just happens to be really picturesque b/c it's mostly ice.
<SnoopJeDi> bofh, I really really really like the way they cut the approach to the planets in The Farthest
<SnoopJeDi> as well as the way they cut/shot most other things; I think it's the best-produced PBS doc I've ever watched
<bofh> SnoopJeDi: agreed
<SnoopJeDi> the music ;_;
Ellied has quit [Quit: WeeChat 1.0.1]
<bofh> the music was phenomenal and the best part IMO
<kmath> <adamjogrady> Just discovered an on-page advert was mining bitcoin in my browser. Remember kids: always use an adblocker
Ellied has joined #kspacademia
<UmbralRaptor> …
egg|cell|egg has joined #kspacademia
egg|phone|egg has quit [Read error: Connection reset by peer]
egg|phone|egg has joined #kspacademia
egg|phone|egg has quit [Client Quit]
egg|cell|egg has quit [Read error: Connection reset by peer]
<egg|zzz|egg> !wpn UmbralRaptor
* Qboid gives UmbralRaptor a greebled thermistor
<egg|zzz|egg> !wpn bofh
* Qboid gives bofh a piston
<UmbralRaptor> !wpn egg|zzz|egg
* Qboid gives egg|zzz|egg a death ray
<egg|zzz|egg> !wpn Fiora
* Qboid gives Fiora a turbo constant with a comma attachment
<egg|zzz|egg> !wpn whitequark
* Qboid gives whitequark an insulating ?
<bofh> Cassini has two orbits left and tbh I'm not ready :(
regex has quit [Remote host closed the connection]
<egg|zzz|egg> !wpn -add:wpn orbit
<Qboid> egg|zzz|egg: Weapon already added!
<egg|zzz|egg> !wpn bofh
* Qboid gives bofh a radial paraboloid
<bofh> well that's sort of like an orbit :P
<egg|zzz|egg> bofh: methinks it is more like an antenna
<bofh> egg|zzz|egg: so yes, a paraboloid is a common emission pattern for directional antennas on an antenna analyzer. but https://en.wikipedia.org/wiki/Parabolic_trajectory#Radial_parabolic_trajectory :P
<bofh> so yes, a highly degenerate orbit, but one nevertheless.
<UmbralRaptor> I'm amused by this class's popularity https://goo.gl/photos/Zru8nPWoRm11Z7jS6
<egg|zzz|egg> um
<bofh> Not unusual, override enrollment cap is common everywhere I've been.
<bofh> The -3 is amusing tho.
* Iskierka cannot parse a popularity from that
<UmbralRaptor> Iskierka: 2 slots available for grad students, 5 signed up, -3 spots left.
<SnoopJeDi> cap 2 o.O
<SnoopJeDi> that constrained by equipment?
<UmbralRaptor> ¯\_(ツ)_/¯
<UmbralRaptor> Maybe there aren't enough planets for every student?
<SnoopJeDi> LOL
<bofh> LOL
<bofh> "Convection blossomed a couple of hours ago, and the center jumped a
<bofh> little northward into the thunderstorm activity."
<bofh> welp here we go again
<SnoopJeDi> Harvey?
<bofh> yep
<bofh> like there are strong shear winds resulting from all the dry air dumped in the gulf that are preventing rapid intensification, but...
<SnoopJeDi> I snuck out to grab some Subway and the sky to the southeast was pretty icky looking. Poor Houston :(
<bofh> the joke tweet about Harvey turning into a permanent fixture in the gulf along the lines of a terrestrial GRS suddenly seems not 100% implausible.
<SnoopJeDi> [deity] forbid
<UmbralRaptor> [screams internally]
<bofh> and yeah, many sympathies for Houston... :/
<SnoopJeDi> I just finished the 3rd book in NOAA/NSF's summer library series, Kim Stanley-Robinson's "Forty Signs of Rain," and the serendipity of it is eerie
<SnoopJeDi> the driving climate event in the book is an ice shelf breakoff (like what we saw last month) that stalls the North Atlantic current and spawns a massive flood event in DC
<bofh> https://mobile.twitter.com/NOAASatellites/status/902634910682316800 oh god it's really obvious on the GOES-14 IR
<kmath> <NOAASatellites> GOES East captured this infrared imagery of #Harvey, now about 80 mi SSE of Port Arthur, TX. Latest forecast info @… https://t.co/ngad69pl93
<SnoopJeDi> the discussion is...gonna be unsettling.
<bofh> oh gods that is disturbingly not outside the realms of plausibility
<SnoopJeDi> Yea his premise is alarmingly well-posed
<kmath> <AP> BREAKING: National Weather Service: Cedar Bayou, Texas, records 51.88 inches of rain from Harvey; new continental U.S. record.
<SnoopJeDi> All that said, I think this storm is well in-bounds for conventional climate, but I'm sure climate change hasn't helped it any
<bofh> that's ~132cm in non-FREEDOM units
<bofh> that's utterly insane
* UmbralRaptor isn't clear on what this means in terms of flooding.
<bofh> and like the worst part is that's not even *close* to done.
<UmbralRaptor> eep
<bofh> like Harvey's going to make landfall again in a day or so for starters :/
<SnoopJeDi> My understanding is that the rainfall totals don't change a huuuge amount vs. the old model, but it's not looking great, yea
<bofh> Yeah, seems the 3-day rainfall forecast is only another 10 inches
<bofh> "only"
<bofh> (~25.4cm)
<UmbralRaptor> So, 60" / 1.4-1.5 m total?
<bofh> According to current NHC outlook.
<SnoopJeDi> UmbralRaptor, the flooding is primarily driven by the watershed and hydrology
<SnoopJeDi> i.e. the highway pictures that people have sent around like crazy are designed to do that
<SnoopJeDi> but the hydrology has not at all matched the pace of development like...ever.
<UmbralRaptor> Fun
<SnoopJeDi> Which is fine *most* of the time, particularly if you're affluent
<UmbralRaptor> I think this question accidentally a word https://goo.gl/photos/cJsRn13HWghC3GGg9
<bofh> SnoopJeDi: so the various posts to the effect of the highway system is designed to carry away excess rainfall in the event of exactly that are more-or-less correct, yeah?
<bofh> http://www.aoml.noaa.gov/hrd/tcfaq/C5c.html WHAT THE HELL PEOPLE ACTUALLY CONSIDERED THIS?!?
<SnoopJeDi> Yea bofh, in a "oh-shit" type of event
<whitequark> is that the tropical cyclone nuke faq
<SnoopJeDi> bofh, good thread by a Houstinite: https://twitter.com/CorbettMatt/status/901960148935114752
<kmath> <CorbettMatt> Houston is on a flat, mostly featureless plain, which is naturally drained by a number of Bayous ("The Bayou City"… https://t.co/mgRxK9xMlx
<whitequark> *clicks*
<whitequark> yes, yes it is
<bofh> SnoopJeDi: thanks
<bofh> https://en.wikipedia.org/wiki/Typhoon_Tip what the hell, barometric pressure of 87.0kPa?!?
<SnoopJeDi> Houstonite? Whatever, the place wot has a good Chinatown
<SnoopJeDi> ...I wonder what happened to the koi and turtles at Ocean Palace...
<kmath> <elisewho> A storm that cripples #Houston affects everyone: Ship channel produces 27% of America's gas, 60% of US aviation fue… https://t.co/Z9wmgGRqI1
<SnoopJeDi> Gas is already up, yep
<bofh> Airline prices are going to go way way way the hell up
<SnoopJeDi> And probably going to keep climbing
<whitequark> shit
<whitequark> I should book a thing
<UmbralRaptor> Bleah, to many unknowns and too little I can do. Can I just tune this out until the rain stops?
<egg|zzz|egg> !wpn whitequark
* Qboid gives whitequark a contingent ham radio
<UmbralRaptor> Oddly relevant.
<bofh> Indeed.
<bofh> Frustrated that HF band propagation is still fucking awful.
<bofh> Speaking of uncooperative weather, *glares at the sun*
<bofh> ooh, Kp is going up
<UmbralRaptor> Oh, right. You're in CA, so you don't need a Kp of like 9.
* UmbralRaptor glares jealously
<bofh> No, I'm in IL.
<bofh> >_>
* UmbralRaptor blinks.
<UmbralRaptor> University of Chicago?
<bofh> U of I at Urbana-Champaign
<bofh> I think I'd need Kp ~ 8 for an aurora here if that's what you were referring to
* egg|zzz|egg gives bofh a télégraphe Chappe
<bofh> LOL
<UmbralRaptor> it is
<bofh> now let's get all Carrington here, egg|zzz|egg
<bofh> +not*
<egg|zzz|egg> bofh: still no mews from atlas?
<egg|zzz|egg> !wpn -add:wpn compressor
<Qboid> egg|zzz|egg: Weapon added!
<egg|zzz|egg> !wpn -add:adj smol
<Qboid> egg|zzz|egg: Adjective added!
<egg|zzz|egg> !wpn -add:adj cute
<Qboid> egg|zzz|egg: Adjective added!
<egg|zzz|egg> !wpn whitequark
* Qboid gives whitequark a Grothendieck antebellum with a cult attachment
<egg|zzz|egg> bofh: could you communicate with Greening by télégraphe Chappe tho
<bofh> https://video.twimg.com/tweet_video/DIbdL0RXkBMYq92.mp4 and video of the final Enceladus flyby
<bofh> egg|zzz|egg: so like I probably could contact Ellied on 5W if I did it on 40m at night.
<bofh> the problem is 40m antennas are fucking huge
<bofh> even a quarter-wave dipole is 10 meters
<egg|zzz|egg> bofh: indeed, so if you're going to be waving huge things around why not Chappe :-p
<bofh> so I don't think that distance still works for visual range :P
<egg|zzz|egg> bofh: hm, you might need a few relays
<egg|zzz|egg> yeah, it's 10-15 km between towers apparently
<egg|zzz|egg> UmbralRaptor: should I stare at the sky
<Iskierka> how many balls of fusion are visible
<egg|zzz|egg> note to self: the top of the roof is at alt. 26.5 deg
<UmbralRaptor> egg: Depends on if we can supply you with good targets. Can you find a flying horse?
<egg|zzz|egg> frankly I don't think I'm going to see much if I don't go out, and I'm too tired to go out
<UmbralRaptor> ☕
<UmbralRaptor> So, no discounts on anything useful?
<UmbralRaptor> Apparently I should GPLv3 all of my works at GMU https://goo.gl/photos/FLhGxyvpkBpavoA19
<UmbralRaptor> (I can get unpaid leave in some cases, if I work > 1250 h/year)
<egg|zzz|egg> UmbralRaptor: I can see where M72 should be, but can't see M72
<UmbralRaptor> Blarg
<UmbralRaptor> egg|zzz|egg: M2?
<egg|zzz|egg> UmbralRaptor: probably a bit high given the window
<egg|zzz|egg> also really should zzz
<egg|zzz|egg> huh, youtube has a new logo
<kmath> <0xabad1dea> My hobby: scrutinizing diagrams in older books for signs that a latex package for this particular subject hadn’t been prepared yet
<kmath> <astronomolly> Iiiiiiiiiiii just learned that "orogeny" is a real word and not one @nkjemisin made up (HT @PamFrostGorder) https://t.co/M9PaB9bK5a