[00:11] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) joined #highaltitude. [00:11] BrainDamage_ (~BrainDama@unaffiliated/braindamage) joined #highaltitude. [00:14] BrainDamage (~BrainDama@unaffiliated/braindamage) left irc: Ping timeout: 272 seconds [00:14] Nick change: BrainDamage_ -> BrainDamage [00:34] michal_f (~michal_f_@91-145-163-242.internetia.net.pl) left irc: Quit: HydraIRC -> http://www.hydrairc.com <- \o/ [01:09] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Quit: Hunger-the-inner-diva [01:38] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude. [01:52] gartt (~gart@ip68-14-86-104.ri.ri.cox.net) left irc: Ping timeout: 272 seconds [01:53] gartt (~gart@ip68-14-86-104.ri.ri.cox.net) joined #highaltitude. [02:37] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) left irc: Ping timeout: 252 seconds [03:02] d33p3y35 (~d33p3y35@91-145-163-242.internetia.net.pl) left irc: Remote host closed the connection [03:02] d33p3y35 (~d33p3y35@91-145-163-242.internetia.net.pl) joined #highaltitude. [03:28] MhYQen_ (~irc@cpc78041-stav21-2-0-cust252.17-3.cable.virginm.net) left irc: Quit: I couldn't repair your brakes, so I made your horn louder. [03:45] MhYQen (~irc@cpc78041-stav21-2-0-cust252.17-3.cable.virginm.net) joined #highaltitude. [03:55] tweetBot (~nodebot@philcrump.co.uk) left irc: Remote host closed the connection [03:55] tweetBot (~nodebot@philcrump.co.uk) joined #highaltitude. [05:12] YO9GJX (~YO9GJX@109.100.112.75) left irc: Remote host closed the connection [05:37] day__ (~Unknown@unaffiliated/day) joined #highaltitude. [05:40] day (~Unknown@unaffiliated/day) left irc: Ping timeout: 244 seconds [05:40] Nick change: day__ -> day [06:01] petrinm (niemelp1@gateway/shell/tkk.fi/x-tluvzlqnztkldtsn) left irc: Remote host closed the connection [06:01] petrinm (niemelp1@gateway/shell/tkk.fi/x-hitktkukhbyqzqwg) joined #highaltitude. [06:26] OZ7EMA (~emanuel_@151.18.237.1) joined #highaltitude. [06:31] OZ7EMA (~emanuel_@151.18.237.1) left irc: Client Quit [06:37] FireFighter (~firefight@2601:44:4200:ab4f:75d8:24ce:90ef:4500) joined #highaltitude. [07:08] xfce3 (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Read error: Connection reset by peer [07:19] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude. [07:21] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Client Quit [07:22] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude. [07:40] labjg (~labjg@150.203.88.49) left irc: Read error: Connection reset by peer [07:41] labjg (~labjg@150.203.88.49) joined #highaltitude. [09:00] chris_99 (uid26561@gateway/web/irccloud.com/x-fnfyymzsimcnwcli) joined #highaltitude. [09:26] michal_f (~michal_f@212.75.108.114) joined #highaltitude. [09:28] mattbrejza_ (984e8402@gateway/web/freenode/ip.152.78.132.2) joined #highaltitude. [09:32] richrboo (~richrboo@94.197.121.75.threembb.co.uk) joined #highaltitude. [09:36] richrboo (~richrboo@94.197.121.75.threembb.co.uk) left irc: Client Quit [09:37] New position from 03HORUSBINARY after 0311 days silence - 12https://tracker.habhub.org/#!qm=All&q=HORUSBINARY [09:53] Kodar (~Kodar@93-139-214-14.adsl.net.t-com.hr) joined #highaltitude. [10:48] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) joined #highaltitude. [10:49] getting to legitimately discuss rocket engine simulation as part of my OU degree is fun :D [10:49] beats discussing stresses involved in bridges..... [10:50] nice :) [10:51] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Read error: Connection reset by peer [10:51] i wonder if any of the simulations done by say nasa, spacex etc, are open source? [10:51] it's good to build bridges [10:51] chris_99: there is a talk from a couple years ago by 2 spacex engineers about how they do some of their simulations [10:51] oh cool [10:51] I'll find the youtube link [10:51] two [10:51] secs [10:51] cheers [10:51] but it doesn't go into details on actual simulations [10:52] aha [10:52] https://youtu.be/txk-VO1hzBY [10:52] cheers, will watch that later [10:54] AndyEsser: Is it a concept that might take off? [10:55] New vehicle on the map: 03DC2EH-6 - 12https://tracker.habhub.org/#!qm=All&q=DC2EH-6 [11:00] i rather liked that atomic rocket for pure silliness (project orion iirc) [11:02] cm13g09: :D [11:03] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) left irc: Ping timeout: 268 seconds [11:06] New position from 03IV3SRD-11 after 038 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11 [11:08] New vehicle on the map: 03BZ0LOR - 12https://tracker.habhub.org/#!qm=All&q=BZ0LOR [11:09] chris_99: quite a lot of nasa stuff is published [11:09] or else just uses Fluent or some other standard package [11:09] ah, neat! [11:10] but the techniques are published [11:10] ntrs.nasa.gov is a goldmine, provided you have some incling of what you're looking for [11:12] that video AndyEsser linked is good [11:13] New vehicle on the map: 03SITS-5 - 12https://tracker.habhub.org/#!qm=All&q=SITS-5 [11:13] it's not really about rockets at all, just a much more sensible way of generating adaptive meshes to simulate fluids problems [11:13] intriguing, the fluid being the atmosphere? or.. [11:14] chris_99: both [11:14] they use it for say the aerodynamics of the Dragon capsule on re-entry [11:14] and the fluid within a combustion chamber [11:14] ah gotcha neat [11:16] OZ7EMA (~emanuel_@151.34.95.54) joined #highaltitude. [11:17] any gas or liquid is a fluid [11:19] my OU assignment is now discussing hypothetical costs with choosing waste disposal companies [11:19] less fun.... [11:20] "bin-a-gogo" vs "we-want-your-waste-plc" [11:20] *sigh* [11:25] dump4u [11:25] any company with "4u" in their name should be banned [11:31] sumie-dh (~sumie-dh@78.108.102.220) left irc: Ping timeout: 240 seconds [11:35] heh, i guess you're not a patron of phones 4u 4 less, if they're still going ;) [11:36] no definity not. I have standards [11:37] hehe [11:40] edmoore: dont gases behave fundamentally different than fluids? [11:41] as in the resistance they exert against a moving object ramps up slower in fluids than it does in gases. [11:41] no, they behave fundamentally the same way [11:41] the difference is just in details [11:41] Kodar (~Kodar@93-139-214-14.adsl.net.t-com.hr) left irc: Ping timeout: 252 seconds [11:42] day: the resistence a fluid exerts on an object is 99% governed by its density [11:42] that's it [11:42] i guess you could argue it away as a material property [11:43] that is what you do. the governing principles are the same [11:43] edmoore: but a higher density leads to lower resistance at high speeds sounds rather odd [11:43] OZ7EMA (~emanuel_@151.34.95.54) left irc: Quit: My MacBook has gone to sleep. ZZZzzz& [11:43] the maths has knobs in it for the properties - viscosity, density, etc [11:43] day: it doesn't [11:43] your sentence is wrong [11:43] day> as in the resistance they exert against a moving object ramps up slower in fluids than it does in gases. [11:44] i thought theres a speed after which an object sees less resistance in water than it does in air [11:45] almost certainly not [11:45] i can't think of a scenario where that would be true, unless there's some other big variable [11:46] Kodar (~Kodar@93-136-239-158.adsl.net.t-com.hr) joined #highaltitude. [11:47] i always found it odd too. but im absolutely sure i got that info from a source that i assumed to be reliable otherwise i would have dismissed it long ago. will dig a little [11:54] but it's also a bit meaningless [11:54] which is why we have the concept of a fluid [11:56] a human on the earth's surface who is at 20C and thinking about 'water' and 'air' thinks there's a fundamental difference, but really the differences are not that fundamental for the purposes of modelling anything [11:56] water behaves like air, just 1000x more dense and much less compressible [11:56] and other properties that are all captures by the navier-stockes equations [11:57] inside a rocket engine combustion chamber much of that earth-surface-human intuition goes out of the window anyway [12:27] woo - assignment submitted [12:27] I really need to get better at doing them _before_ the day of the deadline [12:28] haha [12:31] do you do practical assignments too, out of interest? [12:38] sumie-dh (~sumie-dh@cst2-62-95.cust.vodafone.cz) joined #highaltitude. [12:45] New position from 03SP9UOB after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=SP9UOB [12:50] charlesnw (~charlesnw@158.69.183.161) left irc: Quit: ZNC 1.6.3+deb1ubuntu0.1 - http://znc.in [12:53] charlesnw (~charlesnw@158.69.183.161) joined #highaltitude. [12:53] sumie-dh (~sumie-dh@cst2-62-95.cust.vodafone.cz) left irc: Quit: Lost terminal [12:54] sumie-dh (~sumie-dh@cst2-62-95.cust.vodafone.cz) joined #highaltitude. [12:54] New vehicle on the map: 03JOAL09 - 12https://tracker.habhub.org/#!qm=All&q=JOAL09 [13:10] charlesnw (~charlesnw@158.69.183.161) left irc: Ping timeout: 246 seconds [13:14] mattb2 (0546ffa4@gateway/web/freenode/ip.5.70.255.164) joined #highaltitude. [13:15] mattb2 (0546ffa4@gateway/web/freenode/ip.5.70.255.164) left irc: Client Quit [13:16] charlesnw (~charlesnw@158.69.183.161) joined #highaltitude. [13:41] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude. [13:41] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Client Quit [13:42] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude. [13:45] Good afternoon. Did anyone ever try an autofocus camera like https://www.ebay.com/itm/5MP-CMOS-OV5640-USB-Camera-Module-Board-For-Raspberry-Pi-30Degree-Autofocus-Lens-/221980456195 on a Pi flight ? [13:46] I'm sure I've seen video from an autofocus camera before. it kept loosing focus when it got pointed at the sky [13:47] Makes sense... [13:47] the grease in the mechanism can freeze too [13:50] Let´s first test the 2 camera´s which should arrive tomorrow for less lens distortion.... [13:50] https://www.ebay.com/itm/CMOS-Camera-Video-5MP-170-Fisheye-Autofocus-Lens-Webcam-for-Raspberry-PI-Windows/323365685445?hash=item4b4a18c8c5:g:2DcAAOSwn6dbWBfs:rk:2:pf:0 [13:50] That one I would like to test :-) [13:51] Pointing downwards, test on a drone at first maybe [13:54] Although no frost below 200 m [13:54] autofocus seems a bit wasted on a fisheye lens [14:06] FireFighter (~firefight@2601:44:4200:ab4f:75d8:24ce:90ef:4500) left irc: Ping timeout: 260 seconds [14:07] Well, my problem is that it´s almost to adjust focus from my home and from the launch location I have a nice view 10 - 16 km but I cannot connect a hdmi monitor to he PI when I am there... [14:09] it´s almost ? impossible :-) [14:13] FireFighter (~firefight@2601:44:4200:ab4f:65b9:3627:b834:cf8) joined #highaltitude. [14:29] FireFighter (~firefight@2601:44:4200:ab4f:65b9:3627:b834:cf8) left irc: Quit: Leaving [14:30] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Remote host closed the connection [14:32] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude. [14:33] YO9GJX (~YO9GJX@109.100.112.75) joined #highaltitude. [14:36] use the moon, that's basically infinity :) [14:38] FireFighter (~firefight@2601:44:4200:ab4f:60e1:7b41:1f00:f2d7) joined #highaltitude. [14:50] jarod (~jarod@85.93.177.177) left irc: Ping timeout: 250 seconds [14:52] jarod (~jarod@85.93.177.177) joined #highaltitude. [14:54] New vehicle on the map: 03NLS1 - 12https://tracker.habhub.org/#!qm=All&q=NLS1 [14:57] New vehicle on the map: 03PD8MAH-11 - 12https://tracker.habhub.org/#!qm=All&q=PD8MAH-11 [15:29] sumie-dh_ (~sumie-dh@cst2-62-95.cust.vodafone.cz) joined #highaltitude. [15:37] New vehicle on the map: 03TEST02 - 12https://tracker.habhub.org/#!qm=All&q=TEST02 [15:55] sumie-dh_ (~sumie-dh@cst2-62-95.cust.vodafone.cz) left irc: Ping timeout: 252 seconds [16:21] stilldavid (~stilldavi@stilldavid.com) left irc: Quit: ZNC - 1.6.0 - http://znc.in [16:27] stilldavid (~stilldavi@stilldavid.com) joined #highaltitude. [16:39] SP9UOB-Tom (~verox@2a01:1df:1:b001::dead:beef) joined #highaltitude. [16:39] evening [16:39] howdy [16:40] fsphil: :-) [16:51] sumie-dh (~sumie-dh@cst2-62-95.cust.vodafone.cz) left irc: Quit: Lost terminal [16:53] The20YearIRCloud (uid38883@gateway/web/irccloud.com/x-vushgdmcbgrdqyzn) joined #highaltitude. [16:55] SP9UOB-Tom (~verox@2a01:1df:1:b001::dead:beef) left irc: Quit: rebooooot [16:58] New position from 03HABISRAEL after 035 days silence - 12https://tracker.habhub.org/#!qm=All&q=HABISRAEL [17:04] michal_f (~michal_f@212.75.108.114) left irc: Quit: HydraIRC -> http://www.hydrairc.com <- Nine out of ten l33t h4x0rz prefer it [17:07] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Quit: Hunger-the-inner-diva [17:21] OZ7EMA (~emanuel_@151.38.148.58) joined #highaltitude. [17:22] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude. [17:23] OZ7EMA (~emanuel_@151.38.148.58) left irc: Client Quit [17:30] happysat (~katpoep@s5594c83f.adsl.online.nl) left irc: Remote host closed the connection [17:33] Ian_ (4d66af83@gateway/web/freenode/ip.77.102.175.131) left irc: Ping timeout: 256 seconds [17:38] sumie-dh (~sumie-dh@78.108.102.220) joined #highaltitude. [17:41] Ian_ (4d66af83@gateway/web/freenode/ip.77.102.175.131) joined #highaltitude. [17:54] michal_f (~mfratczak@91-145-163-242.internetia.net.pl) joined #highaltitude. [18:09] happysat (~katpoep@s5594c83f.adsl.online.nl) joined #highaltitude. [18:29] New vehicle on the map: 03SSTAR0273 - 12https://tracker.habhub.org/#!qm=All&q=SSTAR0273 [18:36] OZ7EMA (~emanuel_@151.38.150.53) joined #highaltitude. [18:57] OZ7EMA (~emanuel_@151.38.150.53) left irc: Read error: Connection reset by peer [18:58] OZ7EMA (~emanuel_@151.38.150.53) joined #highaltitude. [19:00] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) left irc: Read error: Connection reset by peer [19:00] FireFighter (~firefight@2601:44:4200:ab4f:60e1:7b41:1f00:f2d7) left irc: Remote host closed the connection [19:13] chandroid (~chandroid@brc107.neoplus.adsl.tpnet.pl) left irc: Ping timeout: 246 seconds [19:13] chandroid (~chandroid@bwk114.neoplus.adsl.tpnet.pl) joined #highaltitude. [19:19] OZ7EMA (~emanuel_@151.38.150.53) left irc: Read error: Connection reset by peer [19:19] OZ7EMA_ (~emanuel_@151.38.150.53) joined #highaltitude. [19:24] OZ7EMA_ (~emanuel_@151.38.150.53) left irc: Quit: My MacBook has gone to sleep. ZZZzzz& [20:28] xfce (~anony@cpe-85-10-26-226.dynamic.amis.net) joined #highaltitude. [20:34] chris_99 (uid26561@gateway/web/irccloud.com/x-fnfyymzsimcnwcli) left irc: [20:43] https://www.spacelaunchschedule.com/launch-schedule/launch-details.php?id=1306&fbclid=IwAR2rTG91IsC48AupVoON3VqH2lbc-oTpLR8Wsbzl1UB4UxC4uE1y16AFH5Y [20:43] In real units: 2 lbs = 907 g [20:43] EsHail sat launch t - 2 minutes [20:44] some people have spent a lot of money on gear to use this satellite. hope it all goes well :) [20:44] I allready bought a 1 meter dish ;-) [20:47] off it goes [20:47] that never gets old [20:48] nice shot [20:48] Quite a speed for a HAB [20:48] I was about to write it's only 50km but by the time I'd wrote that it was 60km [20:49] pb0ahx is 3 seconds ahead with faster Internet [20:50] oh you can see the moon [20:52] huh waht did they just fly past [20:53] very choppy video this time [20:54] nice [20:55] damn I missed that [20:55] didn't miss much, the landing wasn't streamed [20:55] I've seen stuff fly past before, obviously aliens [20:57] that landing looks pretty accurate [21:01] Glasstree (~Glasstree@82-71-48-195.dsl.in-addr.zen.co.uk) joined #highaltitude. [21:09] New position from 03PD8MAH-11 after 036 hours silence - 12https://tracker.habhub.org/#!qm=All&q=PD8MAH-11 [21:12] toasty [21:14] With this speed.... 1 hour to the Clark belt :-) [21:14] wonder how bright the lamps are, if you could see them easily from the ground [21:15] What QRG is the video link on :-) [21:16] hah. I bet it's satellite based [21:16] pun intended ? [21:16] always [21:17] it'll be fun to try and get a bit of ssdv through this satellite [21:18] Slow Satellite Digital Vision [21:18] weee [21:19] Bye bye [21:19] Kryczek (~kryczek@about/security/staff/Kryczek) left irc: Read error: Connection reset by peer [21:19] oh it's shy [21:20] ok now it's safe to spend money :p [21:24] Kryczek (~kryczek@about/security/staff/Kryczek) joined #highaltitude. [21:38] bertrik (~bertrik@rockbox/developer/bertrik) joined #highaltitude. [21:46] https://twitter.com/Raspberry_Pi/status/1062978502981500928 [21:46] pff [22:01] there goes their entire PR budget [22:03] I don't see the point of a Pi 3A, that's way higher power consumption than I would like [22:04] (that's a really bad joke, btw) [22:24] Glasstree (~Glasstree@82-71-48-195.dsl.in-addr.zen.co.uk) left irc: Quit: Leaving [22:36] New position from 03BSS18 after 03a day silence - 12https://tracker.habhub.org/#!qm=All&q=BSS18 [22:39] Kodar (~Kodar@93-136-239-158.adsl.net.t-com.hr) left irc: [22:46] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) joined #highaltitude. [23:06] bertrik (~bertrik@rockbox/developer/bertrik) left irc: Quit: "This incident will be reported" [23:07] New position from 03IV3SRD-11 after 039 hours silence - 12https://tracker.habhub.org/#!qm=All&q=IV3SRD-11 [23:13] buzz53 (~alan@databuzz.plus.com) joined #highaltitude. [23:23] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) left irc: Ping timeout: 268 seconds [23:24] Laurenceb124 (~laurence@host86-149-71-110.range86-149.btcentralplus.com) joined #highaltitude. [23:54] michal_f (~mfratczak@91-145-163-242.internetia.net.pl) left irc: Quit: Leaving [00:00] --- Fri Nov 16 2018