[00:03:54] #KSPOfficial: mode change '+o Dman979' by ChanServ!ChanServ@services.esper.net [00:04:21] https://www.maison-astronomie.com/72-telescopes-newton [00:08:47] well if I get money from my job I will consider getting one [00:08:52] A big part is having a mount that is sufficiently stable and good at tracking. [00:09:28] this shop is in paris so I guess I can just go there and tell them what I want [00:09:43] the telescopes under 200 seem fairly decent [00:10:09] They're very hit or miss. [00:10:27] can't be worse than my current one [00:11:23] actually my friend's telescope could use a new mount [00:16:49] Is the current version of far usable at all with 1.4? or will i encounter game breaking issues? [00:18:35] apparently andromeda is rather large so I will use something else than the 20mm lens for once [00:22:08] nvm i look though teh thread a bit more [01:21:31] Sons and daughters of Kerbin: If you ever lose an online FPS match, it because the other team was hacking. [01:22:27] Though, in the case of Call of Duty titles since Modern Warfare 1, this is likely true. [01:29:10] "Is dark matter made of primordial black holes" - Probably not. https://phys.org/news/2018-04-dark-primordial-black-holes.html [01:30:15] Zhu et al. "Primordial black holes as dark matter: constraints from compact ultra-faint dwarfs" Monthly Notices of the Royal Astronomical Society 2018 https://arxiv.org/abs/1710.05032 [01:31:07] [Continuing reminder that WIMPS beat up MACHOS] [01:32:47] To the article's credit, it admits that black holes with more than 10 and perhaps as little as six stellar masses could likely be excluded. [01:33:08] yay [01:37:29] this is my nicest picture of jupiter yet https://cdn.discordapp.com/attachments/236560222133551104/437064246451240960/DSC_8803.JPG [01:37:58] I managed to see saturn but no photo [01:38:03] was quite dim actually [01:38:30] Action: UmbralRaptop 🔪 cameras that don't let you manually set both ISO and shutter speed, [01:39:19] Fluburtur: That's a flock of geese. [01:41:05] UmbralRaptop: Though, now that I think about it, previous tests for MACHOs involved far, far, far, far less massive objects. [01:41:30] Like, sub-stellar mass remnants. [01:41:50] This may explain why they would mention primordial black holes once and moved on. [01:41:51] well, yes. [01:42:24] Fluburtur: That's a flock of geese. <-- are we playing the little prince game? [01:42:58] Eddi: No, it was swamp gas! [01:43:21] as in "no, that's not a hat, that's a snake which swallowed an elephant" [01:43:38] Action: Scolar_Visari points to flocks of geese being mistaken for alien spacecraft in reality. [01:44:54] so if the earth is flat, how is jupiter round? [01:45:20] I was going to take pics of saturn but I hear some spooky noises and decided I wouldn't not deal with some wild pig [01:45:38] wait no [01:45:49] Eddi: It's also flat, but its moons are oblate spheroids. [01:46:25] also the mount of my telesope is still crap [01:47:11] Action: Scolar_Visari recalls this being an issue in early attempts at telling time by observing the position of the Galilean moons. Easy on land, difficult at sea. [01:49:20] I also saw what is either a binary system or just two stars that look close but I lost it [01:55:03] that's a question i always asked myself about Alkor and Mizar, but that was before you could carry google around with you everywhere you go [01:55:35] I think it was rather close to Vega actually [01:55:50] i mean whether they're binary or just close [01:55:58] yeah [01:56:06] i mean visually close, but actually very far in space [01:56:29] https://en.wikipedia.org/wiki/Epsilon_Lyrae [01:56:32] might be this one [01:58:34] Optical binaries [01:58:54] two sets of binaries apparently [01:59:47] http://en.es-static.us/upl/2015/07/epsilon-lyrae-lg.jpg [02:00:14] my telescope doesn't have such resolution so assuming it's the one I saw, then I only saw a binary system [02:00:31] *Some* actual binaries can be seen with binoculars. [02:00:41] As with red dwarfs, I believe. [02:00:58] Action: Scolar_Visari notes Proxima Centauri was visible to the naked eye during its recent flare. [02:01:36] but would it be visible where I am [02:02:46] well if I manage to get a proper telescope before this summer and if I go to the mountain house where the sky is very clear I could get some fancy pictures [02:04:03] Action: Scolar_Visari ponders that Battletech's mission hub is strangely similar to Dragon Commander's. [02:04:20] Fluburtur: You could always steal the Hubble. [02:04:27] yeah [02:06:54] i'm not as familiar with star positions as i once used to be, but i think Alpha Centauri was pretty southern [02:08:13] Confirmed: Battletech's Argo is indeed the space based version of Dragon Commander's Raven. [02:15:38] Amusingly, it is a DropShip that cannot land. [02:24:53] Action: Scolar_Visari goes off to see if the Space Station is a DropShip [04:17:53] https://cdn.discordapp.com/attachments/205480803340255233/436995613087760415/Firefly_688258_6583480.png [04:21:28] NEOWISE releases 4th year of data https://www.jpl.nasa.gov/news/news.php?release=2018-078 [04:21:49] ok scott, do your thing :) [04:22:03] hah [04:22:31] he has several high res videos with asteroids, and this is part of it [05:12:16] UmbralRaptop: oooo i spotted siding spring [05:15:19] UmbralRaptop: I remember when the first news came out about siding spring. it was all very exciting [06:25:20] https://imgur.com/H1QYpFe [06:25:20] https://i.imgur.com/H1QYpFe.jpg [06:25:43] space train [06:25:55] space train arriving at duna, choo choo [06:26:24] when in bttf 3 the doc sounds the whistle on the train and mentions he always wanted to do that [06:27:54] https://imgur.com/SXaq35I [06:27:54] https://i.imgur.com/SXaq35I.png [06:28:21] why is it that long and that many modules? [06:31:35] Althego: bringing fuel for multiple landings, plus an entire space station [06:32:01] space train station [06:32:25] including farm module for infinite life support despitew its high weight [06:32:43] and a nuclear reactor [06:33:23] i read that china wants a biology experiment on the moon. with growing plants and some caterpilalrs or something [06:57:20] Althego: blegh [06:57:22] china [06:57:37] is that one of your triggers? [06:58:30] Althego: oh no, I love people responsible for the single worst debris causing event in space exploration history [06:58:39] hehe [06:58:39] one that won't be rectified for decades [07:09:55] that is what you are worried about? never mind we collectively doomed earth already [09:28:33] #KSPOfficial: mode change '+o APlayer' by ChanServ!ChanServ@services.esper.net [11:29:34] k time to make the new nozzle mold [11:29:47] then maybe tomorrow I can fire a rocket with the mk3 nozzle [11:38:14] Mold sounds like hot. I don't like "hot" right now [11:38:22] It's not even summer and we have 30° C [11:38:37] yeah im melting [11:38:38] it was 25 yesterday here in Stockholm [11:38:46] summer [11:38:57] I fear that summer was yesterday :) [11:39:21] I don't. I fear that climate change will result in > 40° C here :| [11:39:31] We typically have no AC here [11:39:38] Almost unbearable [11:39:56] And since this is rented I have no idea where to put an AC here :| [11:39:57] apparently having my fuel a bit more oxydizer rich could help stop the oscillations [11:40:06] it's called "chuffing" apparently [11:40:17] Oh, great idea [11:40:20] wanna see that :) [11:40:45] well I already have fuel pre-mixed so I will try with the new nozzle first [11:42:18] also I will try to improve the ignition method [11:43:12] I usually pour some black powder to the bottom of the rocket and put the ignition cord in that but next time I will put some cotton to hold it at the bottom of the engine this way it all burns inside the engine and makes for a cleaner start [11:43:15] And moar screws! [11:43:24] or moe screws :) [11:50:33] the new nozzle should be stronger and have less back presure and smoother flow [11:50:36] so I hope it will work [11:58:33] my back has been killing me all day [11:59:09] kill it [12:13:45] https://www.youtube.com/watch?v=Z5brXkwrAnc [12:13:45] YouTube - NASA EDGE: Low-Boom Flight Demonstration [12:13:54] maybe supersonic planes are making acomeback [12:18:22] looks something like a kerbal would use [12:37:33] I hope they solve the climate impact, before they have a comeback... [12:38:04] not as long as they burn hydrocarbons [12:38:32] you could create that out of thin air and sunshine [12:38:47] would take a long time [12:38:57] nah, just huge solar plants [12:39:06] and that is the issue, we are burning through this stuff that was collected in millions of years [12:39:07] there's enough space in some of our deserts [12:39:14] all plants are solar :) [12:39:31] the other plant :P [12:40:56] there is biodiesel [12:41:18] which needs huge agricultural space and eats a lot of water [12:41:22] but i dont know about biofuels for planes [12:41:36] Bioplanes [12:41:36] probably still more efficient than anything we could come up with [12:41:40] birds [12:41:47] They had them in the Flintstones [12:41:54] there was the weed plane thing [12:41:59] Althego: I'm talking about https://en.wikipedia.org/wiki/Methanation [12:42:05] plane made of hemp fibers and hemp based fuel [12:42:48] use solar energy, split Water in H2 and O2, release the O2, use CO2 from the atmosphere, make methane [12:53:40] That's called Bosch-Haber, isn't it? [12:53:56] Wait, no, it isn't [12:59:17] I should probably start cooking some fuel [13:05:46] do you eat it too? [13:05:58] I rthink I could [13:18:35] I think I will put a metal wire frame inside the nozzle to keep it from cracking [14:23:50] #KSPOfficial: mode change '+o APlayer' by ChanServ!ChanServ@services.esper.net [16:09:16] #KSPOfficial: mode change '+v eriophora' by ChanServ!ChanServ@services.esper.net [17:25:22] Action: APlayer buys a gravestone for #KSPOfficial [17:25:38] lel [17:25:40] Did someone forget to unmute it? [17:25:51] any news on your quad? [17:25:55] Yes [17:26:10] It flew. A bit too enthusiastically, even, heh [17:26:15] nice [17:26:18] do you have video? [17:26:39] I may take a picture of the aftermath, more like [17:26:43] here lies kspo, launched once too many [17:27:34] So we implemented a control algorithm with PID loop. Did run a few tests of the tuning while holding it the hand, also made it successfully take off and cut motor power after 3 seconds [17:28:59] Seemed to be stable. Then we went on and attempted a 10 second hover with thrust slightly below 1 G (so it would ideally descend slowly). 10 seconds was enough to uncover an unstability in the PID loop, so it crashed a bit and a motor ripped off because the propeller collided with a table [17:29:24] well that's pretty nice [17:29:35] didn't you have a soft testing surface? [17:30:07] Propeller kept spinning and tangled itself around its cable, resulting in broken wires where the isolating tube ended and the motors windings began [17:30:20] uh that's bad [17:30:28] time to integrate a safety cutoff then [17:30:34] I don't think that's recoverable, but we ordered spares now. Should be there by the end of next week [17:31:00] Flub2: Safety cutoff currently only reacts to pitch/roll angles of more than 60 deg in either direction [17:31:00] nah when wires are broken too close to the motor is is very hard to fix [17:31:17] should cut if it loses control or if therr [17:31:21] if there is a shock [17:31:21] Should add another one add sudden accelerations [17:31:46] Can't easily detect in-loop if it lost control [17:32:21] Uh, I meant to say "Should add another one for sudden accelerations" [17:33:33] I guess you could make a "lost control" safety if the quad is out of the wanted flight conditions for too long [17:35:52] As for testing surfaces... We went for an indoors test, could have done it outdoors too. Outdoors we have a beach volleyball place with sand, but I fear the sand could damage it. Or we could do it on the grass, which might be uneven. Indoors, there would be a room which is largely empty and carpeted, should probably have used that. Also, there would be the school gym, but it's almost never entirely empty, and [17:35:53] if it's used the vibrations of the floor would interfere with sensor calibration. [17:37:00] I think I'd rather just lower the threshold angle from 60 deg to 20 or so. Because 20 is sufficiently large to be outside of normal and intended if I just want to hover. [17:37:12] yeah [17:37:32] time to fine tune the pid then [17:37:48] Also, high accelerometer or gyroscope readings should be a red flag too [17:38:02] yeah [17:38:48] Though high gyroscope readings almost seem normal. I was surprised to see my KD of the PID to be 0.0002 or so (with min/max output being -0.25/0.25) [17:42:39] I am somewhat lost regarding how to safely test the quad, though. 3 seconds was not enough, apparently, and 10 seconds was way too much. [17:44:01] Also, even in an ideal place where it has nothing to collide with and the surface is soft, such as grass, still consider the scenario where it hits someone of the people who are testing it [17:45:54] well it isn't very big so shouldn't be very dangerous [17:47:34] I guess if you can log flight data it would make it easier to tune the pid [17:47:44] then it should be able to hover stabily forever [17:49:06] I could log data to the EEPROM, actually [17:49:47] It's only 1 kb in size, though, and my loop runs at more than 100 Hz, IIRC [17:51:21] you can only log parts of it then [17:51:31] What I did consider was to start it with an Arduino -> PC cable on it. But that's guaranteed to rip off the Arduino and sensors from the frame, might damage the computer and adds general problems because there would be a cable hanging on its side. [17:51:40] most flight controllers can log flight data and you can set it to log a certain percentage [17:52:03] I could indeed log, for example, once every 200 ms [17:53:58] Quick calculation says I have just enough memory to log two floats every 100 ms for 12.5 seconds [17:54:09] Should be enough, I think [17:54:30] yeah [18:09:04] Took a while but I finally got my hoverjet to Laythe in New Horizons... Derso looks neat over there through Laythe's atmo :O https://puu.sh/A7LNU/8a29a78b12.jpg [19:10:51] https://cdn.discordapp.com/attachments/413109312802521098/437329351394983937/20180421204010_1.jpg [19:46:18] Hey all, Does anyone know, but I think I know the answer... if you do a cheat it will default to sandbox? [19:46:31] Sorry? [19:47:24] if you do a cheat, it will change your "title" that you give your game a "sandbox" default name [19:48:36] even if I do a small change, it changes my title to blah blah_sandbox [19:48:57] What do you mean by "cheat"? [19:49:37] if you modify the paramaters [19:49:50] In the settings? [19:49:53] go into debug.. [19:50:08] That should not turn your game into a sandbox either [19:50:14] hmmm [19:50:23] It does when I change things [19:50:37] takes away my M/C [19:50:50] but I can change everything else [19:51:15] money, points tech [19:53:21] That's weird. I don't know why it does that. [19:53:48] I know, but that's one way of having people become a super player [19:54:06] I mean stopping [19:56:46] I don't think that's intended. The debug menu is for debugging, not for cheating and/or cheat control [19:57:13] Its kind of arguious (However you spell it) to try and accomplish things in normal mode [19:58:42] you would think that for debug, they would have a separate control instead of having access to evrything [19:59:30] you know what I mean [20:00:51] I didn't think this would be this difficult even on easy mode [20:01:25] thanks [20:20:25] https://78.media.tumblr.com/c685dd387ed109afb42e8d32e8777037/tumblr_inline_p70amaHYEf1r9vqxq_500.jpg [20:24:33] looks like someone was inspired by 7 days to die... [20:24:52] "tumblr_inline" in the URL seems appropriate [20:24:58] it's the standard toilets of the scp foundation sites [20:25:07] gotta save space for dem containmetn chambers [20:25:53] That's rare footage from the Astronaut Complex [20:26:51] uh a lot of youtubers are making references to joerg sprave [20:27:04] like "say hello to my little friend" or "let me show you its features" [20:53:48] https://78.media.tumblr.com/aa0ef752c4b88f9d5a1982a2fe560498/tumblr_p7gyu15PJp1r539hzo1_400.gif [21:04:28] Flub2: How did your test go? [21:04:38] didn't test yet [21:04:45] nozzle is still in the mold [21:04:55] I need to let them dry for like 24 hours [21:05:14] so tomorrow I will cook the fuel and will test tomorrow night or maybe the day after [21:05:31] when I get a good nozzle design I will make a lot of molds so I can make a lot of nozzles at once [22:04:43] Mat2ch https://cdn.discordapp.com/attachments/405528003997859842/437372969195536384/DSC_8804.JPG [22:04:54] #KSPOfficial: mode change '+v bathtub_shark' by ChanServ!ChanServ@services.esper.net [23:00:36] Flub2: ok... [23:00:49] wire frame to hold it together [23:01:33] idk if that will do much [23:03:56] it works in reinforced concrete [23:04:09] but you might want to add more or a net like structure [23:04:28] well it won't stop nozzle erosion [23:04:38] it's more like to holt it together while in the mold [23:04:56] and if the nozzle is cracked I doubt I will be able to use it [23:05:11] might prevent it from fracturing while burning [23:06:25] Anyone know how to determine why a mod is considered "Incompatible" on CKAN, even if it's listed as the latest version? [23:08:08] Some mod authors don't upgrade their mods to the newer KSP versions [23:08:33] which means they're incompatible [23:08:55] " even if it's listed as the latest version?" [23:09:08] I wonder where I can buy EPP foam [23:09:17] whatevre they put in the molds to make foam airplanes [23:09:29] yeah, why not? [23:11:14] I mean, my mod is updated to the latest version of KSP...It even shows that on CKAN. But it's still listed as incompatible on the CKAN client [23:28:35] Tortoise767: oh, that's what you mean. Sounds like a bug. Ask in the ckan channel: #ckan [23:29:11] Ah, didn't know there was a ckan channel. Thanks @Mat2ch [23:29:42] :) [23:29:45] Nightynight [23:31:13] MIGHT [23:31:17] caps* [23:31:19] night* [23:45:37] https://78.media.tumblr.com/0187e50e493f677bde4ad2aa2ffbb1b1/tumblr_mfmlyoglOC1r7gy2bo1_540.jpg [23:55:10] #KSPOfficial: mode change '+o UmbralRaptop' by ChanServ!ChanServ@services.esper.net