00:30 <UmbralRaptor> Note to self: do not let extragalctic astronomers specify RV instrument features

00:51 <egg> Raptop: um

00:51 <egg> Raptop: what did the eggstragalactic astronomers want

00:53 <raptop> Hrm. Actually it looks like he was non-terrible, and it's an RV person with the most confusing survey

00:54 <raptop> Yes, we're *definitely* going to get 90-100% time on GMT *and* TMT for a 10 year survey

00:55 <raptop> The eggstragalactic is sketching out 50% on Keck + $Chilean_8m

00:57 <raptop> (There's what, Gemini South and the 4 VLTs?)

00:57 <raptop> Yeah, we're implicitly using Gemini South

01:07 <egg|laptop|egg> giant sloth

01:08 <raptop> I'd be worried if I saw a sloth that was 8.2 m in diameter

01:13 <raptop> !choose あや｜おくえ

01:13 <galois> Raptop: Your options: あや｜おくえ. My choice: あや｜おくえ

01:13 <raptop> uh

01:14 <raptop> !u ｜

01:14 <galois> ｜: U+ff5c FULLWIDTH VERTICAL LINE

01:19 <raptop> !choose あや|おくえ

01:19 <galois> Raptop: Your options: あや, おくえ. My choice: あや

01:40 <egg|laptop|egg> Raptop: giant sloths are kinda chonk already

03:48 <mofh> egg: you're looking at a couple thousand minimum, tho I think that's optimistic

03:49 <mofh> it's a weird enough field there are multiple papers on estimating costs (in USD) as functions of field strength & stored energy, see https://inis.iaea.org/collection/NCLCollectionStore/_Public/25/036/25036865.pdf or https://ieeexplore.ieee.org/document/4520240

03:49 <galois> title: The Cost of Superconducting Magnets as a Function of Stored Energy and Design Magnetic Induction Times the Field Volume - IEEE Journals & Magazine

03:51 <mofh> (and this is beside the problem that for anything of reasonable strength you need LHe which will dominate your operating costs, yes you need it even with Cuprates (actually especially with them, since otherwise their critical field values aren't high enough to make them better than conventional superconductors) since you want to get a critical field value as high as possible).

03:51 <mofh> whitequark: &

03:51 <mofh> whitequark: ^ *

13:37 <whitequark> mofh: hm, interesting

13:37 <whitequark> mofh: can i do NMR without superconducting magnets

15:06 <whitequark> btw anyone here plays with SDR?

16:17 <chexoraptop> balloon telescopes with adaptive optics and solar panels o_O

16:19 <chexoraptop> (telescope ballooning != spider ballooning)

16:22 <egg> SDR?

16:22 <galois> SDR: Software Defined Radio

16:22 <egg> !wpn whitequark

16:22 <chexoraptop> !wpn egg

16:23 <egg> um

16:24 <chexoraptop> That seems dangerous

16:39 <chexoraptop> !8 Are they called tellurics because earth's atmosphere is contaminated with tellurium compounds?

16:39 <galois> chexoraptop: no

16:39 <chexoraptop> good bot

16:39 <galois> =]

16:41 <chexoraptop> !wpn egg|cell|egg

16:47 <chexoraptop> !seen armed_troop

16:47 <galois> Sorry, I haven't seen armed_troop around.

16:47 <armed_troop> been a while :/

16:47 <armed_troop> hey egg

16:49 <chexoraptop> hrm

17:00 <egg|cell|egg> Hi armed_troop

17:20 <egg|cell|egg> Whitequark: I cannot read AGC as anything other than Apollo guidance computer https://mobile.twitter.com/whitequark/status/1220736416990355456

17:20 <galois> title: whitequark on Twitter: "good suggestion! i did have AGC enabled. unfortunately, disabling AGC made absolutely no difference wrt #1 https://t.co/H1fct0R9d7"

17:20 <egg|cell|egg> AGC?

17:21 <egg|cell|egg> !acr -add:AGC Apollo Guidance Computer

17:21 <galois> Definition added!

18:25 <armed_troop> !acr -add:AGC Automatic gain control

18:25 <galois> Acronym already defined! Try !acr -redef:WTF When Taylor Fails

18:25 <armed_troop> egg|cell|egg: ^

18:26 <armed_troop> egg: does the bot support multiple defs?

19:21 <egg|cell|egg> Not trivially

19:21 <egg|cell|egg> PAL?

19:21 <galois> PAL: Propulseur d’Appoint à Liquides

19:21 <egg|cell|egg> Hm

19:21 <egg|cell|egg> HD?

19:21 <galois> HD: Henry Draper

19:22 <egg|cell|egg> argh

19:22 <egg|cell|egg> We have some

19:23 <egg|laptop|egg> ERA?

19:23 <galois> ERA: Ephemeris Research in Astronomy | Earth Rotation Angle

19:23 <egg|laptop|egg> armed_troop: just redef it like that with definitions separated by |

19:23 <egg|laptop|egg> DORIS?

19:23 <galois> DORIS: Détermination d’Orbite et Radiopositionnement Intégré par Satellite / Doppler Orbitography and Radiopositioning Integrated by Satellite

19:23 <armed_troop> !acr -add:AGC Automatic gain control | Apollo Guidance Computer

19:23 <galois> Acronym already defined! Try !acr -redef:WTF When Taylor Fails

19:23 <armed_troop> !acr -redef:AGC Automatic gain control | Apollo Guidance Computer

19:23 <galois> Definition added!

19:24 <egg|laptop|egg> NAGU?

19:24 <galois> NAGU: Notice Advisory to Galileo Users | Notice Advisory to GLONASS Users

19:24 <egg|laptop|egg> (note, the GPS one is NANU)

19:24 <egg|laptop|egg> ГЛОНАСС?

19:24 <galois> ГЛОНАСС: ГЛОбальная Навигационная Спутниковая Система

19:25 <armed_troop> !acr redef:PAL Propulseur d’Appoint à Liquides | Phase Alternating Line | Permissive Action Link

19:25 <galois> Invalid command. Valid forms: !acr -add:LMAO Lagrange Made Awesome Orbits, !acr -redef:ROFL Rare Occultations for Life, !acr -del:IEEE

19:26 <armed_troop> !acr -redef:PAL Propulseur d’Appoint à Liquides | Phase Alternating Line | Permissive Action Link

19:26 <galois> Definition added!

19:34 <chexoraptop> !wpn

20:45 <mofh> 13:37:36 <@whitequark> mofh: can i do NMR without superconducting magnets

20:45 <mofh> as long as you don't need high-field, sure

20:45 <whitequark> right, i mean, can i do useful NMR

20:45 <mofh> you can do 70MHz with nothing more than a bunch of NdFeBs

20:45 <mofh> yes, you can still do quite a bit of useful stuff for characterization, especially 1H

20:46 <whitequark> hm

20:46 <mofh> like you won't get weak nuclei and you'll need more than trace amounts of sample but it's still a level of analytical ability far above what anyone currently has outside of a uni / access to aprofessional one.

20:46 <whitequark> aha

20:49 <whitequark> i should read up on basics of NMR instruments sometime, i really have no idea how one looks like inside

20:49 <whitequark> besides "it has a dewar and a magnet" except this one won't have even a dewar

21:14 <_whitenotifier-d13c> [Principia] pleroy pushed 1 commit to master [+0/-0/±1] https://git.io/JvqTE

21:14 <_whitenotifier-d13c> [Principia] pleroy cb48cc3 - Announce Frege.

21:14 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=417

21:14 <_whitenotifier-d13c> [Principia] Pending. queued - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=418

21:14 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=417

21:14 <_whitenotifier-d13c> [Principia] Pending. in progress - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=418

21:51 <chexoraptop> Today in Unique Serial Bus - fellow student has phone with micro-USB, my phone has USB-C. So we can't recharge his phone

22:07 <chexoraptop> !8 is this arguing that the solar system is rather unusual compared with most exoplanet systems?

22:07 <galois> ChexoRaptop: yes

22:10 <_whitenotifier-d13c> [Principia] Success. #418 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=418

22:18 <_whitenotifier-d13c> [Principia] Success. #417 succeeded - https://dev.azure.com/mockingbirdnest/445d7b9d-0318-42e3-857f-b69d40b1ed1b/_build/results?buildId=417