--- Log opened Tue Nov 30 00:00:47 2021 01:07 -!- darsie [~darsie@84-113-55-200.cable.dynamic.surfer.at] has joined #hplusroadmap 02:09 < fenn> so and so recommends weighted blankets for better sleep 02:10 < fenn> less time asleep, more energy on waking and throughout the day, no more exhaustion. it weighs 7 kg and costs 30-60 EUR 02:12 < L29Ah> i wonder what's used as heavy filler 04:00 < sknebel> various things: glass or steel beads, sand/pebbles, grains 04:02 < L29Ah> grain sounds like a good way to get a biohazardous blanket 04:09 < sknebel> yeah. I guess I could see that as a temporary thing if someone wanted to try it - few kg of dried beans or something is easy to get and easy to cleanly dispose of, not sure how it's supposed to work long-term 04:47 -!- Codaraxis [~Codaraxis@user/codaraxis] has joined #hplusroadmap 04:50 -!- Codaraxis_ [~Codaraxis@user/codaraxis] has quit [Ping timeout: 264 seconds] 07:00 < jrayhawk> a 12kg weighted blanked was the single biggest quality of life improvement i have made in the past year 07:03 < jrayhawk> i am generally very dopamine deficient, though 07:03 < jrayhawk> YMMV 07:15 -!- Malvolio [~Malvolio@user/malvolio] has joined #hplusroadmap 07:21 -!- Malvolio is now known as Guest9385 07:26 -!- Malvolio [~Malvolio@user/malvolio] has joined #hplusroadmap 07:31 -!- x88x88x [~cheeg@gateway/vpn/pia/x88x88x] has joined #hplusroadmap 07:34 -!- Malvolio [~Malvolio@user/malvolio] has quit [Killed (NickServ (GHOST command used by Guest9385))] 07:35 -!- Guest9385 is now known as Malvolio 07:38 -!- Malvolio [~Malvolio@user/malvolio] has left #hplusroadmap [] 07:40 -!- Malvolio [~Malvolio@user/malvolio] has joined #hplusroadmap 08:43 -!- SDr5 [~SDr@li1189-192.members.linode.com] has joined #hplusroadmap 08:43 -!- SDr [~SDr@user/sdr] has quit [Ping timeout: 256 seconds] 08:44 -!- heath [~heath@user/heath] has quit [Ping timeout: 256 seconds] 08:44 -!- muurkha [~kragen@adjuvant.canonical.org] has quit [Ping timeout: 256 seconds] 08:45 -!- x88x88x [~cheeg@gateway/vpn/pia/x88x88x] has quit [Ping timeout: 256 seconds] 08:46 -!- muurkha [~kragen@adjuvant.canonical.org] has joined #hplusroadmap 08:46 -!- heath [~heath@user/heath] has joined #hplusroadmap 08:55 -!- Malvolio [~Malvolio@user/malvolio] has quit [] 08:58 -!- Malvolio [~Malvolio@user/malvolio] has joined #hplusroadmap 11:19 < nsh> kanzure, et al. might enjoy the short story by Charles Stross called Antibodies 11:21 < docl> .title https://www.cnn.com/2020/01/13/us/living-robot-stem-cells-intl-hnk-scli-scn/index.html 11:21 < saxo> Xenobots: First living robots created from stem cells - CNN 11:21 < docl> self replicating life forms with custom shapes made from frog stem cells 11:22 < docl> er, non self rep 11:22 < docl> .title https://cdorgs.github.io/ 11:22 < saxo> About | CDOs 11:25 < docl> CDO = computer designed organisms 11:25 < docl> " 11:25 < docl> The organisms live in standard freshwater and can survive in temperatures ranging from 40 degrees to 80 degrees fahrenheit. " 11:28 < docl> .title https://www.pnas.org/content/117/4/1853 11:28 < saxo> A scalable pipeline for designing reconfigurable organisms | PNAS 12:35 -!- balrog [~balrog@user/balrog] has quit [Quit: Bye] 12:39 -!- balrog [~balrog@user/balrog] has joined #hplusroadmap 13:08 -!- spaceangel [~spaceange@ip-78-102-216-202.net.upcbroadband.cz] has joined #hplusroadmap 13:50 < kanzure> what range of shapes can they make? 13:50 < kanzure> "... Pluripotent stem cells are first harvested from blastula stage Xenopus laevis embryos, dissociated, and pooled to achieve the desired number of cells. Following an incubation period, the aggregated tissue is then manually shaped by subtraction using a combination of microsurgery forceps and a 13-μm wire tip cautery electrode" 13:52 -!- mrdata [~mrdata@user/mrdata] has quit [Ping timeout: 245 seconds] 13:55 -!- mrdata [~mrdata@135-23-182-185.cpe.pppoe.ca] has joined #hplusroadmap 13:56 -!- mrdata [~mrdata@135-23-182-185.cpe.pppoe.ca] has quit [Changing host] 13:56 -!- mrdata [~mrdata@user/mrdata] has joined #hplusroadmap 14:56 < lsneff> .tw https://twitter.com/lsparrish/status/1465812486028996614 14:57 < saxo> IDK why there's not more talk of building orbital rings for the sheer global transit value. With a big one you could traverse the globe at 6x orbital velocity (or whatever you can handle in g forces) // It's like an airport that's also a railway that's also a space launcher (@lsparrish) 14:57 < lsneff> docl: 14:59 < lsneff> sounds like something that could be VC funded into existence 15:09 < docl> Yeah... I keep thinking that 15:11 < docl> If $35/kg turns out to be real with Dragon, 180,000T can be launched for $6.3B 15:13 < docl> if smaller is workable maybe it's less expensive to start. I wish there was more work on establishing the lower bound / likely engineering hurdles 15:18 < kanzure> there seems to be no gwas study for genotype of hubris :/ 15:19 < lsneff> with starship you mean? 15:20 < lsneff> I think it'd be politically unviable rn unfortunately 15:28 < lsneff> Many countries wouldn't want a ring over their heads 15:29 < docl> possibly. starlink is sort of that already though, and we've had satellites for a long time 15:30 < lsneff> that's true 15:30 < lsneff> hmm 15:31 < lsneff> this seems surprisingly feasible 15:48 -!- spaceangel [~spaceange@ip-78-102-216-202.net.upcbroadband.cz] has quit [Remote host closed the connection] 16:30 -!- gnusha [~gnusha@user/gnusha] has joined #hplusroadmap 16:30 -!- Topic for #hplusroadmap: biohacking, nootropics, transhumanism, open hardware | pardon the dust | this channel is LOGGED: http://gnusha.org/logs | https://diyhpl.us/wiki | not quite sponsored by george church | banned by the MIT media lab and the FDA 16:30 -!- Topic set by fenn [~fenn@user/fenn] [Wed May 19 15:37:47 2021] 16:30 [Users #hplusroadmap] 16:30 [ ^ditto ] [ Codaraxis ] [ greenz1[m]] [ livestradamus] [ potatope ] [ sknebel ] 16:30 [ _flood ] [ cpopell ] [ heath ] [ lsneff ] [ ptrcmd ] [ soundandfury] 16:30 [ abe ] [ Croran ] [ helleshin ] [ maaku ] [ redlegion ] [ srk ] 16:30 [ acertain ] [ deltab ] [ Hooloovoo ] [ Malvolio ] [ rndhouse[m]] [ strages ] 16:30 [ andytoshi] [ docl ] [ HumanG33k ] [ mgxm ] [ RubenSomsen] [ streety ] 16:30 [ archels_ ] [ dustinm- ] [ Jenda ] [ mrdata ] [ s0ph1a ] [ superkuh ] 16:30 [ balrog ] [ EnabrinTain] [ jrayhawk ] [ muurkha ] [ saxo ] [ TMA ] 16:30 [ berndj ] [ FelixWeis ] [ juri_ ] [ nsh ] [ SDr5 ] [ xaete[m] ] 16:30 [ catalase ] [ fenn ] [ kanzure ] [ otoburb ] [ sgiath ] [ yuanti ] 16:30 [ chiastre ] [ gnusha ] [ L29Ah ] [ pasky ] [ sivoais ] 16:30 -!- Irssi: #hplusroadmap: Total of 59 nicks [0 ops, 0 halfops, 0 voices, 59 normal] 16:30 -!- Channel #hplusroadmap created Wed May 19 06:51:36 2021 16:32 -!- Irssi: Join to #hplusroadmap was synced in 128 secs 17:00 < muurkha> I feel like making grain or beans inedible is not a terribly difficult problem. soak it in enough of virtually any salt, even NaCl, and then dry it 17:00 < muurkha> but sand or gravel might be cheaper 17:28 < docl> muurkha: hadn't heard of electrolytic codeposition before, interesting 17:29 < docl> does it result in layers of metal/ceramic, or is it a mixture? 17:29 < muurkha> my notes on the Pareto optimality curve for heavy fillers say: water, .06¢/kg, 1 g/cc; quartz, 3¢/kg, 2.6 g/cc; magnetite, 10¢/kg, 5.17 g/cc; steel scrap, 21¢/kg, 7.9 g/cc; lead scrap, 95¢/kg, 11.3 g/cc; tungsten carbide, ???; tungsten, US$30/kg, 19.3 g/cc; osmium, US$13000/kg, 22.65 g/cc 17:30 < muurkha> apparently it's a mixture but I haven't done it 17:32 < muurkha> that is, I don't know of anything that's denser than water but cheaper than quartz, denser than quartz but cheaper than magnetite, denser than magnetite but cheaper than steel scrap, denser than steel scrap but cheaper than lead scrap, etc. 17:32 < muurkha> I'm having a hell of a time finding out what the price of tungsten carbide is 17:35 < muurkha> https://articulo.mercadolibre.com.ar/MLA-903136072-arandela-plana-de-hierro-zincada-de-38-x-1kg-_JM seems like it would probably be an easier way to make a weighted blanket than trying to sew ball bearings or beans into a blanket 17:37 < muurkha> 1kg for US$3.30, which is a lot more than 21¢ 17:39 < muurkha> but it's a manageable price, and the washers are presumably free of asbestos dust, motor oil, butyric acid, pyrolysis products of polyurethane, and the other miscellany that come with scrap steel 18:54 < fenn> i don't expect the density to matter at all 18:55 < fenn> pea gravel seems fine 18:55 < fenn> washers would clank and scratch you and tear cloth 18:56 < fenn> apparently they use glass beads 19:01 < fenn> or steel beads 20:44 < muurkha> well, there are some "weighted blankets" that are just heavy cotton 20:45 < muurkha> but that ① is more expensive than glass, steel, or gravel and ② seems like it would be hot and sweaty 20:45 < muurkha> these washers look relatively deburred, maybe they won't tear cloth: https://articulo.mercadolibre.com.ar/MLA-881665977-arandelas-planas-de-hierro-zn-1-18-en-caja-de-1-kg-18-uni-_JM 20:47 < muurkha> they won't clank if they're sewn onto cloth that separates them, and they won't scratch us if they're enveloped in cloth 20:56 < fenn> i still think it would feel hard and poky 20:56 < fenn> not characteristics i want in a blanket 20:56 < fenn> i guess your goal is to avoid having pockets of beads 20:57 * fenn mumbles about chainmail 21:28 < muurkha> yeah 23:09 -!- darsie [~darsie@84-113-55-200.cable.dynamic.surfer.at] has joined #hplusroadmap --- Log closed Wed Dec 01 00:00:48 2021