--- Day changed Fri Mar 28 2008 00:34 -!- fenn [n=pz@adsl-76-252-191-250.dsl.bltnin.sbcglobal.net] has joined #hplusroadmap 00:34 -!- Topic for #hplusroadmap: happy bunny day - day of the replicator! 00:34 -!- Topic set by fenn [] [Sun Mar 23 22:34:25 2008] 00:34 [Users #hplusroadmap] 00:34 [ Enki-2] [ epitron] [ fenn] 00:34 -!- Irssi: #hplusroadmap: Total of 3 nicks [0 ops, 0 halfops, 0 voices, 3 normal] 00:34 -!- Channel #hplusroadmap created Sat Mar 22 15:44:12 2008 00:35 -!- Irssi: Join to #hplusroadmap was synced in 25 secs 01:02 -!- fenn_ [n=pz@adsl-75-62-115-69.dsl.bltnin.sbcglobal.net] has joined #hplusroadmap 01:02 -!- Topic for #hplusroadmap: happy bunny day - day of the replicator! 01:02 -!- Topic set by fenn [] [Sun Mar 23 22:34:25 2008] 01:02 [Users #hplusroadmap] 01:02 [ Enki-2] [ epitron] [ fenn] [ fenn_] 01:02 -!- Irssi: #hplusroadmap: Total of 4 nicks [0 ops, 0 halfops, 0 voices, 4 normal] 01:02 -!- Channel #hplusroadmap created Sat Mar 22 15:44:12 2008 01:03 -!- Irssi: Join to #hplusroadmap was synced in 29 secs 01:16 -!- fenn [n=pz@adsl-76-252-191-250.dsl.bltnin.sbcglobal.net] has quit [Read error: 110 (Connection timed out)] 05:05 -!- You're now known as fenn 07:34 -!- kanzure [n=bryan@70.113.54.112] has joined #hplusroadmap 08:23 -!- kanzure [n=bryan@70.113.54.112] has quit ["Leaving."] 12:48 -!- fenn_ [n=pz@adsl-99-133-188-140.dsl.bltnin.sbcglobal.net] has joined #hplusroadmap 12:48 -!- Topic for #hplusroadmap: happy bunny day - day of the replicator! 12:48 -!- Topic set by fenn [] [Sun Mar 23 22:34:25 2008] 12:48 [Users #hplusroadmap] 12:48 [ Enki-2] [ epitron] [ fenn] [ fenn_] 12:48 -!- Irssi: #hplusroadmap: Total of 4 nicks [0 ops, 0 halfops, 0 voices, 4 normal] 12:48 -!- [freenode-info] if you need to send private messages, please register: http://freenode.net/faq.shtml#privmsg 12:49 -!- Channel #hplusroadmap created Sat Mar 22 15:44:12 2008 12:49 -!- Irssi: Join to #hplusroadmap was synced in 31 secs 13:15 -!- fenn [n=pz@adsl-75-62-115-69.dsl.bltnin.sbcglobal.net] has quit [Read error: 110 (Connection timed out)] 17:12 -!- Enki-2 [n=weechat@c-71-234-190-248.hsd1.ct.comcast.net] has quit [Read error: 104 (Connection reset by peer)] 17:18 -!- Enki-2 [n=weechat@c-71-234-190-248.hsd1.ct.comcast.net] has joined #hplusroadmap 17:20 -!- Enki-2 [n=weechat@c-71-234-190-248.hsd1.ct.comcast.net] has quit [Read error: 104 (Connection reset by peer)] 17:26 -!- Enki-2 [n=weechat@c-71-234-190-248.hsd1.ct.comcast.net] has joined #hplusroadmap 17:28 -!- Enki-2 [n=weechat@c-71-234-190-248.hsd1.ct.comcast.net] has quit [Read error: 104 (Connection reset by peer)] 17:44 -!- kanzure [n=bryan@70.113.54.112] has joined #hplusroadmap 17:46 < kanzure> fenn_: New idea. If you can't think of a solution off the top of your head, you are framing the problem incorrectly. 18:12 < kanzure> fenn_: So we have to decide if we want to go with the automated (open source) analytical toolchain methodology (with public 'access ports' for calibration before we accept results), plus your wiki idea at the same time. 18:14 < kanzure> epitron: I was talking with some buddies in my cal 2 class today, it turns out that a significant percentage of them want eugenics, population control, and to kill off stupid people. And they quite literally believe this. 18:14 < kanzure> (obviously we need lots of people for *variation* and *viability*) 18:14 < epitron> hahhaha 18:14 < epitron> well it makes sense 18:14 < epitron> those memes trickle down from the highest levels of society 18:14 < kanzure> I was genuinely freaked. I used to want to kill stupid people too, but that was only because I was 11 and angry ;) 18:14 < epitron> yeah 18:15 < epitron> it's a tricky meme though because it sticks 18:15 < kanzure> yes 18:15 < epitron> think about it 18:15 < kanzure> it's quite deceptive 18:15 < epitron> i guess you have :) 18:15 < kanzure> you think it solves the problem 18:15 < kanzure> but then you realize it doesn't 18:15 < kanzure> because you are shooting yourself in the foot 18:15 < epitron> exactly 18:15 < kanzure> I am not saying that those people are the foot, but merely that they are in fact a part of our body 18:16 < epitron> haha 18:16 < epitron> the "body model of society"? 18:16 < kanzure> Perhaps :) 18:16 < epitron> that's the most arcane meme ever 18:16 < kanzure> epitron: I have been trying something interesting for the past half year 18:16 < epitron> i bet that's what the ruling class teach their children still 18:16 < kanzure> I've decided to purge the word "intelligence" from my working vocabulary 18:16 < epitron> interesting 18:16 < kanzure> indeed 18:16 < kanzure> so the same goes with stupidity 18:16 < epitron> how's it been working out? 18:16 < epitron> cool :) 18:16 < kanzure> hard to communicate with others 18:17 < kanzure> but it works out on my end 18:17 < epitron> you ever tried speaking E'? 18:17 < kanzure> erm, elojanban? 18:17 < kanzure> longbjan? 18:17 < kanzure> lonjan? 18:17 < epitron> no, english-prime 18:17 < kanzure> oh, not at all 18:17 < epitron> english without the verb "to be" 18:17 < kanzure> I was thinking of the created langs 18:17 < kanzure> ooh 18:17 < epitron> it's basically the way scientists speak 18:17 < epitron> :) 18:17 < epitron> "seems like" "similar to" etc 18:18 < epitron> instead of "is" 18:18 < kanzure> yes, I try writing that way from time to time 18:18 < epitron> it's difficult! :) 18:18 < epitron> ^ 18:18 < epitron> definitely gets you to think more precisely though 18:19 < kanzure> the language peculiarities preclude cognizant preprocessing of pre- and post translational barriers in the removal of grammatical guiding elements, such as to be verbs, in thought identification processes; however, removing such preprocessing allows faster problem solving, and possibly quicker correct solution finding. 18:19 < kanzure> hurray for sounding scientific 18:20 < kanzure> Personally, I use Elizier Yudkowsky's stance on death: "PLEASE STOP DYING". 18:20 < kanzure> but calling that out in a high school calculus class just doesn't work ;) 18:20 < kanzure> *Eliezer 18:21 < epitron> in what sense does he mean dying 18:21 < kanzure> as in the most terrible of senses: in that when you die, you opt to *burn* your information (your body), you opt to burry it away under the ground to rot and dissipate 18:21 < kanzure> as well as not doing enough science during your lifetime to help figure out how to stop aging (if possible) 18:22 < epitron> why would you yell that in calculus 18:22 < epitron> :) 18:22 < epitron> also, there is a reason for people to die. it's the same reason we have to keep deleting and reinstalling windows 18:22 < epitron> people's brains get cluttered 18:22 < kanzure> Again, note that the topic of conversation included population control, eugenics, sterilization, etc. 18:22 < kanzure> Then simply wipe their brains. 18:23 < epitron> why not also be reborn then? 18:23 < epitron> you get a fresh body :) 18:23 < epitron> i'm not saying our current way of life is optimal 18:23 < kanzure> note that I don't use Windows. :) 18:23 < epitron> i'm just saying there IS a reason for it 18:23 < epitron> exactly 18:23 < kanzure> Haven't had to reinstall my Linux installation in four years. 18:23 < epitron> we just need a better windows ;) 18:23 < epitron> a better organizational system 18:24 < kanzure> right, but we need to be around long enough to set it all up 18:24 < kanzure> and so far nobody has done this 18:24 < epitron> you ever read about that stragen phenomenon in physics where as soon as one generation of physicists dies, a whole bunch of new discoveries are made? 18:24 < kanzure> No, I didn't know I could read about it 18:24 < epitron> haha 18:24 < kanzure> but yes, I've observed as much 18:24 < epitron> well, some wise physicists talk about it 18:24 < epitron> i think feynman talked about it 18:24 < epitron> he probably heard it from bohr or something 18:25 < epitron> bohr was always stickin' it to the man 18:25 < kanzure> Feynman had a source for everything, just very well hidden 18:25 < epitron> sure 18:25 < kanzure> I've extracted as much information on Feynman as humanly possible, 18:25 < epitron> i know feynman pretty well :) 18:25 < kanzure> so I have a pretty good idea of how to replicate a Richard Feynman 18:25 < epitron> haha 18:25 < kanzure> such as the pattern-tilesets during infancy, 18:25 < epitron> he also liked to tell you how he did things 18:25 < kanzure> the encyclopedia sets, etc. 18:25 < epitron> he liked doing the trick, then telling you how it was done 18:26 < kanzure> yep 18:26 < kanzure> good method 18:26 < kanzure> Alright, I need to get to work 18:27 < kanzure> Can't figure out where I want to start this evening. 18:27 < epitron> haha 18:27 < epitron> start with what makes you happy 18:27 < kanzure> re: self-replication, I've been wondering if the method that fenn and I proposed will be of any good 18:27 < kanzure> since it's a very large, nearly hopeless effort IMO 18:27 < epitron> ah 18:27 < kanzure> don't know if you saw the logs, but basically we had the idea of using automated machinery to do it 18:27 < kanzure> and then letting people build this machinery and make measurements on all sorts of material 18:27 < epitron> well, reduce the scope of the problem then 18:27 < kanzure> and have them automatically submit data to a database 18:27 < epitron> implement a small bit 18:28 < epitron> implement something that others can build on 18:28 < kanzure> the problem though is that you can't just implement a small bit 18:28 < kanzure> yeah 18:28 < kanzure> so, let me explain 18:28 < epitron> well, everything is made of small bits :) 18:28 < epitron> ok 18:28 < kanzure> the thing is that you need to do an entire simulation with all of the different materials 18:28 < kanzure> there's something called a closed-dependency loop, a directed cyclical graph 18:28 < kanzure> in the sense that these materials, when combined in a certain way, can produce each other 18:28 < kanzure> obviously if you put sand in a bucket, you're not going to get a second bucket with sand in it 18:29 < kanzure> so that's not a closed-dependency-loop system :) 18:29 < kanzure> we were thinking of loading up tons of materials and systems into a massive database 18:29 < kanzure> and then use some graph-analysis software to find the loops 18:29 < kanzure> but that would require very explicit specifications on the interconnectedness of all of the parts 18:29 < kanzure> to the extent that each time you add a new part, you have to go through the entire database and say how it connects 18:29 < kanzure> or how the variables are related 18:30 < kanzure> or if there is any interface at all between two parts 18:30 < kanzure> so this is exponentially growing 18:30 < kanzure> *not* good 18:30 < kanzure> but how else are you going to be able to find the materials that can work together? 18:30 < kanzure> what's worse, you need exponential growth **done by human hand** since we don't have computers to do it 18:30 < kanzure> ah, maybe we can have a giant neurofarm of brains inserting the data 18:30 < kanzure> but the problem with this is that you need self-replication for giant neurofarms 18:30 < kanzure> (for the industrial infrastructure) 18:30 < kanzure> so we are back to square one 18:30 < kanzure> hehe 18:31 < kanzure> you see how that happens? ending right back where you started? 18:33 < epitron> hmm 18:34 < epitron> if it's an exponential problem, the universe is a good computer 18:34 < epitron> physical systems are incredibly interconnected and information dense 18:34 < epitron> o_O 18:35 < kanzure> yes, 18:35 < kanzure> Moshe Sipper cited a proof that some other guys came up with showing that self-replicators can be evolved 18:35 < kanzure> which is incredibly weird since evolution requires self-replication 18:35 < kanzure> or preservation of a code 18:36 < kanzure> I need to go get that ref, because that's pretty funky ;) 18:40 < kanzure> so either way we hit a hard problem though 18:40 < kanzure> a physical environment is not good -- you can't search for results 18:40 < kanzure> a digital simulation is not good -- we have no Grand Unified Theory, we can't magically install a database of millions of different materials and systems 18:40 < kanzure> therefore the problem is incorrectly framed 18:40 < kanzure> or it's the wrong problem when considering self-replication 18:44 < kanzure> maybe we should just pick a bunch of materials to work with and then constrain our search-space 18:44 < kanzure> i.e., deployal in a certain niche 18:45 < kanzure> this would constrain search space to specific minerals and then ways of working with those minerals 18:45 < kanzure> but then we still need to detail systems for working with those minerals 18:45 < kanzure> unless we come up with our own insights for working with different minerals 18:45 < kanzure> usually that requires specific testing and experimentation ... I wonder if it can be done from first principles, i.e. not knowing anything about the mineral in the first place 18:45 < kanzure> maybe there exists a book to detail this sort of minerology information 18:46 < kanzure> there can only exist so many different ways of processing materials, right? 18:46 < kanzure> perhaps I'll go through some of the minerals and figure out the manufacturing processes (perhaps a complementary page to my analytical instrumentation page) 18:46 < epitron> haha 18:46 < kanzure> and then make some broad generalizations and mention what features of the mineral necessitated the variations in the mining and processing machinery 18:47 < kanzure> already have a list of minerals - http://heybryan.org/mediawiki/index.php/Elements (just hit an element and see a list) 18:50 < kanzure> Transformation of Ba-Al-Si precursors to celsian by high-temperature oxidation and annealing - all 4 versions » 18:50 < kanzure> HJ Schmutzler, KH Sandhage - Metallurgical and Materials Transactions B, 1995 - Springer 18:50 < kanzure> ... mineralizer-free processes that are capable of yielding celsian in modest ... final ceramic 18:50 < kanzure> phase, by mechanical alloying; (2) deformation processing to produce a ... 18:50 < kanzure> Cited by 15 - Related Articles - Web Search - Find it at UT 18:50 < kanzure> yeah, Google Scholar seems to have lots of information on the minerals 18:50 < kanzure> tis good 18:52 < epitron> ok 18:52 < epitron> anyhow, if the project is too intractable, i'm sure you can reduce its scope somehow 18:52 < kanzure> "Introduction to Mineral Process Engineering" hurray 18:53 < epitron> just focus on a skeletal mathematical verison of a simplified self-replicator 18:53 < epitron> or something :) 18:53 < epitron> using virtual materials 18:53 < kanzure> Acidophiles in bioreactor mineral processing 18:53 < epitron> ones that don't exist 18:53 < kanzure> virtual materials requires a GUT (Grand Unified Material) 18:53 < kanzure> would require a massive physical framework and models extracted from many papers 18:53 < epitron> i mean, you make up a symmetric set of materials 18:53 < kanzure> many, many papers, the last 80 years of physics 18:53 < kanzure> hm 18:53 < kanzure> perhaps 18:53 < epitron> imaginary materials 18:53 < kanzure> but then how do you search for materials that satisfy those properties 18:54 < epitron> you create them that way ;) 18:54 < epitron> like creating a RSA keypair 18:54 < kanzure> material science --> material engineering ? 18:54 < epitron> i mean... 18:54 < epitron> abstract it more 18:54 < kanzure> so given a set of properties, engineer a material to satisfy the requirements 18:54 < epitron> no, you just say that "this material satisfies them" 18:55 < epitron> and model what happens if that imaginary material exists 18:55 < epitron> it's like a thought experiment 18:55 < kanzure> right 18:55 < kanzure> but then you need to implement it 18:55 < kanzure> and you need to be able to make the material 18:55 < kanzure> or find it 18:55 < epitron> ok 18:56 < epitron> what if you made a universe that made it easy to make self-replicators 18:56 < kanzure> huh? 18:56 < kanzure> make it in *our world* 18:56 < epitron> a universe that you could simulate really easily 18:56 < epitron> say, remove a dimension 18:56 < kanzure> I understand the imaginary/virtual materials idea 18:56 < epitron> and certain laws of physics 18:56 < kanzure> and it is a good idea of course 18:56 < kanzure> and that's what we are doing anyway 18:56 < epitron> alright :) 18:56 < kanzure> but I am saying that there is a divide between our simulations 18:56 < kanzure> and reality 18:56 < kanzure> in that if we did come up with something that worked in a simulation 18:56 < kanzure> with those "virtual materials" that gave some specs for the materials 18:56 < epitron> yeah, because reality requries that you have terraflop computers 18:56 < kanzure> we can't easily correlate those to materials in our world 18:56 < kanzure> no 18:57 < kanzure> that's bullshit 18:57 < epitron> what? :) 18:57 < kanzure> look, let's say that you have sets A, B, C, D on your computer 18:57 < kanzure> and you have a collection of balls in a bag 18:57 < kanzure> how do you correlate A-D and 1-4 (balls) together ? 18:57 < kanzure> you have to have some way to have a one-to-one correspondence 18:57 < kanzure> and nobody says that you have those specific balls 18:57 < kanzure> or even know of their existence 18:57 < epitron> hmmm 18:57 < kanzure> and even if you assumed they did exist, how would you find that ? given your simulation of sets A-D? ;) 18:58 < kanzure> thus, materials engineering 18:58 < epitron> this is getting to abstract 18:58 < kanzure> *or* material restriction (as I mentioned above) 18:58 < kanzure> http://heybryan.org/mediawiki/index.php/Materials_engineering 18:58 < epitron> i've actually just been acting like a rorshach blot, saying vague things because i don't knwo what you're talking about ;) 18:58 < epitron> seeing what sticks 18:58 < kanzure> then just ask questions 18:58 < epitron> haaha 18:58 < kanzure> indeed 18:58 < epitron> i don't wanna know 18:58 < kanzure> that's how I work with programming somehow 18:58 < kanzure> *sometimes 18:58 < epitron> not right now 18:58 < kanzure> rubber ducky method 18:58 < kanzure> ask somebody else to try explaining what I am saying 18:58 < kanzure> and then they spit out something so terribly stupid 18:59 < kanzure> that it makes me smarter 18:59 < kanzure> hehe 18:59 < kanzure> oops 18:59 < kanzure> I mean, makes me find the solution 18:59 < kanzure> not smarter 18:59 < epitron> o snap u used the word 18:59 < epitron> btw, you seen muxtape.com? 18:59 < kanzure> no? 19:00 < epitron> it's pretty crazy 19:00 < kanzure> looks like a color chart 19:00 < epitron> giant pile of free music 19:00 < kanzure> what's a mixtape? 19:00 < kanzure> ooh 19:00 < kanzure> food, brb 19:00 < epitron> really big :) 19:00 < kanzure> Microbial mineral processing: The opportunities for genetic manipulation. - all 3 versions » 19:00 < kanzure> AA Nicolaidis - Journal of Chemical Technology and Biotechnology, 1987 - csa.com 19:00 < kanzure> Microbial mineral processing: The opportunities for genetic manipulation. AA Nicolaidis 19:00 < kanzure> Journal of Chemical Technology and Biotechnology 38:33, 167-186, 1987. ... 19:01 < kanzure> Hydrodynamics of Bubble-Mineral Particle Collisions 19:01 < kanzure> HJ Schulze - Mineral Processing and Extractive Metallurgy Review, 1989 - informaworld.com 19:01 < kanzure> haha 19:01 < kanzure> quite specific 19:19 -!- You're now known as fenn 19:21 < kanzure> Method for purification and production of saline minerals from trona 19:21 < kanzure> Hydrometallurgical extraction process 19:21 < kanzure> Purification of kaolin clay by froth flotation using hydroxamate collectors 19:22 < kanzure> PURIFICATION OF ALUMINUM SULPHATE 19:22 < kanzure> PURIFICATION OF SAND 19:25 < kanzure> http://rruff.geo.arizona.edu/AMS/amcsd.php American mineralogist crystal structure database 19:27 < kanzure> Surface-mediated mineral development by bacteria 19:27 < kanzure> D Fortin, FG Ferris, TJ Beveridge - Reviews in Mineralogy and Geochemistry, 1997 - Mineral Soc America 19:30 < fenn> "detail systems" 19:30 < fenn> packages are really just code objects 19:31 < fenn> when i say [[human:power]] it refers to a class in a module 19:31 < fenn> that class inherits from the built-in "power" class 19:31 < kanzure> ah 19:31 < fenn> in this way you can add functionality for specifications that wouldn't exist without tedious enumeration of everything that could ever be done 19:31 < kanzure> ah 19:32 < kanzure> so we still have to do it by hand though 19:32 < kanzure> Steps toward interstellar silicate mineralogy. II. Study of Mg-Fe-silicate glasses of variable … - all 2 versions » 19:32 < kanzure> J Dorschner, B Begemann, T Henning, C Jaeger, H … - Astronomy and Astrophysics, 1995 - adsabs.harvard.edu 19:32 < kanzure> Title: Steps toward interstellar silicate mineralogy. II. ... 300, 503-520 (1995) ASTRONOMY 19:32 < kanzure> AND ASTROPHYSICS Steps toward interstellar silicate mineralogy II. ... 19:32 < fenn> for example, module "geartrain" would have a "backlash" property (and ways to define it) 19:32 < fenn> why are you giving me all these minerology links? 19:32 < kanzure> hm? 19:32 < kanzure> I'm doing some background research 19:33 < fenn> mineralogy* :) 19:34 < fenn> that still doesnt look right.. stupid mineralogists 19:35 < kanzure> no kidding 19:35 < kanzure> I am trying to find a good paper that reviews mineral engineering techniques 19:35 < kanzure> and see if I can make up any generalizations 19:35 < kanzure> hehe: Reflectance spectroscopy and asteroid surface mineralogy - 1989 19:36 < fenn> kanzure: are you related to forrest bishop? 19:36 < kanzure> fenn: nope 19:36 < kanzure> but I have had others ask me the same question 19:36 < fenn> seen his page? iase.cc 19:36 < kanzure> IIRC, he does awesome electronics 19:36 < kanzure> and other h+ stuff 19:37 < kanzure> ah, right, space propulsion 19:37 < fenn> the 'bishop rings' of orion's arm were apparently his idea 19:38 < fenn> so anyway, small world, big deal 19:39 < kanzure> right 19:39 < kanzure> but still good stuff 19:39 < fenn> yep 19:40 < fenn> he did a lot of freitas' early illustrations 19:40 < kanzure> fenn: any ideas on how to search for mineralogy papers? I can't find anything in general, that reviews a wide range of mineral engineering techniques 19:40 < fenn> what specifically are you looking for? like how to get the stuff out of the ground and turn it into refined products? 19:41 < kanzure> refining 19:41 < kanzure> getting it out of the ground is just mechanical motion + scooping + drilling + etc. 19:41 < kanzure> big giant drills, hehe 19:41 < kanzure> plus exploding asteroids, collecting the materials and then melting them down 19:41 < kanzure> which is the refining process 19:42 < kanzure> hm, maybe I should look at the patent databases 19:43 < fenn> actually there are a wide variety of leaching methods 19:43 < kanzure> see patent 3886259 - process for mineral refining 19:43 < kanzure> leaching methods? 19:43 < kanzure> oh 19:43 < kanzure> good 19:43 < fenn> dissolve stuff while it's underground and pull it up 19:43 < fenn> generally nasty and bad for the environment 19:43 < kanzure> assume we don't have to deal with an environment though 19:43 < kanzure> i.e., asteroid mining 19:44 < fenn> bad for the ecosystem i mean 19:44 < fenn> there's always an environment 19:44 < kanzure> as for local testing, we've already been doing it for years so we know it works 19:47 < fenn> seeing as i know next to nothing about geology and earth-based mineral refining, i'll leave that one up to someone else 19:48 < fenn> maybe we can get a grad slave assigned to the project, once we reach critical mass :) 19:49 < fenn> who wrote all the asteroid mining and orbital algae farming pages? 19:51 < kanzure> me 20:00 < fenn> you have much to learn, young grasshopper :) 20:03 < fenn> there's a lot in common between analytical chemistry instruments and asteroid mining techniques 20:04 < fenn> dont underestimate the economy of solar reflectors 20:04 < kanzure> hm 20:04 < kanzure> I've realized that all that we really have to worry about is mineral purification at this point 20:04 < kanzure> analytical instrumentation is useful for determining how 'pure' a sample is 20:04 < kanzure> but as for purifying it, 20:05 < kanzure> I'm still looking. 20:05 < kanzure> somehow, no matter the method, you have to separate the elements 20:05 < fenn> a neat idea is to distribute 'laser beams' of purified minerals, straight out of the (bulk) mass spectrometer 20:05 < kanzure> how does that work? 20:05 < fenn> instead of packets, you just beam the atoms where you want them to end up 20:05 < kanzure> I know about mass spectrometry -- basically accelerate some ions and throw 'em at a recording utility 20:05 < kanzure> oh 20:06 < kanzure> you don't mean for purification 20:06 < fenn> since they're in free fall in an orbit, the only thing that can screw up the beam is solar wind 20:06 < kanzure> hehe 20:06 < kanzure> right, and we can probably set up a warning network for solar wind storms 20:06 < fenn> it's purification and distribution at the same time 20:07 < fenn> then at the other end, you have plates that get atoms condensing onto them, which you can scrape off (or presumably you can do something with the beam directly) 20:07 < kanzure> I don't see how that would work, can you describe how to do the mass spectrometer -> mineral laser -> purification already done method ? 20:07 < fenn> ok, take an asteroid 20:07 < fenn> heat it up really frickin hot, so that everything is a plasma 20:07 < kanzure> oh 20:08 < kanzure> in mass-spec you separate ions by charge 20:08 < fenn> now set up a voltage gradient, you get separation of mass vs charge ratio 20:08 < kanzure> so since everything should have a different charge, you're done 20:08 < kanzure> then what? 20:08 < fenn> then recombine the electrons with the beam so it doesn't spread out 20:08 < fenn> after focusing of course 20:08 < fenn> uh, that's the hard part :) 20:08 < kanzure> hm 20:09 < kanzure> well 20:09 < kanzure> there's always the idea of using a matter beam 20:09 < kanzure> i.e., BEC, but we havent' achieved BEC for molecules or large samples yet 20:09 < kanzure> and then we'd just shoot a beam of atoms out 20:09 < fenn> a beam of BEC's? 20:09 < kanzure> yep 20:09 < fenn> or a really long BEC? 20:09 < kanzure> either way 20:09 < kanzure> I guess we'd do separate BECs 20:09 < kanzure> for the different materials 20:10 < fenn> a really long BEC would probably have super-weird unexpected physics 20:10 < kanzure> once separated, the materials are all cooling down, right? 20:10 < fenn> they're superconductors right? 20:10 < kanzure> so we need to encapsulate them 20:10 < kanzure> BECs? Don't remember. 20:11 < kanzure> oh 20:11 < kanzure> originally my idea was to process each asteroid individually 20:11 < kanzure> and have the equipment attached to the asteroid 20:11 < kanzure> but it looks like mass-spec of asteroids might require larger equipment 20:11 < kanzure> as in, equipment in which the asteroids could be maneuvered into 20:11 < fenn> why's that? 20:11 < kanzure> because this way you can capture the materials as they are separated 20:11 < kanzure> just like in normal mass-spec 20:11 < fenn> you'd need a bag to keep all the dust bits from flying off and getting lost (and making a mess) 20:12 < kanzure> sure 20:12 < fenn> besides that it wouldnt really matter how big the asteroid is 20:12 < kanzure> hm 20:12 < fenn> there's a problem with the drilling concept -- how are you going to anchor into the asteroid? 20:12 < fenn> there's nothing to push against 20:12 < fenn> cant use suction cups because it's a vacuum 20:13 < kanzure> ideally, you start drilling in the direction opposite of its motion 20:13 < kanzure> you need to be able to withstand the impact force 20:13 < fenn> sticky tape might work if you can blow away dust - but there's static electricity messing up that idea 20:13 < kanzure> the impulse, I believe. 20:13 < kanzure> alternatively, 20:13 < kanzure> I was thinking of biofuels 20:13 < kanzure> just sprinkle the bacteria on the surface 20:14 < kanzure> and then come back to scoop them up 20:14 < kanzure> presumably they are metabolizing off of the minerals 20:14 < fenn> uh.. 20:14 < kanzure> and then we need a way to melt them down and extract the metals 20:14 < kanzure> we can engineer bacteria to eat metal 20:14 < fenn> that seems more practical on mars or somewhere with water and an atmosphere 20:15 < kanzure> extremophiles can survive on an asteroid =) 20:15 < kanzure> that's the beauty of it 20:15 < fenn> survive, but can they flourish? 20:15 < fenn> i dont think they can 20:15 < fenn> not enough water, not enough mineral diversity 20:16 < kanzure> http://heybryan.org/mediawiki/index.php/Moontank (but not just for the moon) 20:16 < kanzure> ah, that's true, there's not enough resources 20:16 < kanzure> you need to leave a package of nutrients 20:16 < kanzure> that can dispense extra nutrients as needed 20:16 < fenn> sure, if you can demonstrate a bacterial colony flourishing in a vacuum tank, i might believe it 20:16 < kanzure> but importantly, you can't let them get too greedy 20:16 < kanzure> because it'd be genetically easier to just eat the minerals from the provisional tank 20:17 < fenn> if it were possible, then why dont we see bacteria in moon rock samples already? (earth meteors do hit the moon quite often) 20:17 < kanzure> meteors from earth hit the moon? 20:17 < kanzure> as in, rocks from earth break off and hit the moon? 20:18 < fenn> yes, after an asteroid hits earth 20:18 < kanzure> have we confirmed this by tracking such a rock? 20:18 < fenn> no, but we have meteors from mars on earth 20:18 < fenn> i dont really see the difference 20:19 < kanzure> perhaps there is something that can be done via engineering to make life more viable in such environments 20:19 < fenn> yes 20:19 < kanzure> I am pretty sure it's the resource diffusion problem 20:19 < kanzure> or availability problem 20:19 < kanzure> since you can't get nitrogen when your asteroid is just carbon heh 20:19 < fenn> i just dont think it's worth the extra complexity 20:20 < fenn> if all you want is pure elements 20:20 < kanzure> true 20:20 < kanzure> why not just mimic what the bacteria would do anyway 20:20 < fenn> just throw up a multi-km aluminum foil reflector 20:20 < kanzure> ? 20:20 < fenn> er, toss up 20:20 < kanzure> ? 20:20 < kanzure> but still, what would that do? 20:20 < fenn> well, it depends how you use it 20:20 < kanzure> sunlight reflection? 20:20 < fenn> you can sputter off rock-vapor onto a conveyor belt 20:21 < kanzure> ah 20:21 < fenn> or you can use it like a pulsed laser to blast out areas 20:21 < kanzure> okay 20:21 < fenn> through thermal cracking and gas generation 20:21 < kanzure> how's that? 20:22 < fenn> when you get something hot enough it turns into a gas 20:22 < fenn> the gas pressure would tend to push on the sides of the crack, blasting the rock apart 20:22 < fenn> on a microscopic level of course 20:22 < fenn> you would need a quick shutter to turn the beam on suddenly 20:22 < fenn> the sunlight beam 20:24 < fenn> heck you could just use a huge co2 laser if you wanted 20:24 < kanzure> wait, what? 20:24 < kanzure> so you quickly 'snap' at the rock 20:24 < kanzure> and it breaks apart 20:24 < kanzure> and then you have what, a collection of broken up particles 20:24 < fenn> yes 20:25 < kanzure> if you have a supermassive co2 laser, you would aim it at the rock (ahead of time), and fire? 20:25 < kanzure> and then you would, what, push the materials somewhere? 20:25 < fenn> the whole rock doesn't explode at once 20:25 < kanzure> that's a large, centralized system 20:25 < fenn> you just get a stream of smoke and dust and vaporized rock 20:25 < kanzure> oh 20:25 < kanzure> and out of that 'stream crack' you put your machinery 20:25 < kanzure> which would package the materials and send 'em off? 20:25 < fenn> right 20:26 < fenn> though this all seems somewhat primitive to me :) 20:26 < kanzure> if it works ;) 20:26 < kanzure> a giant km aluminum sheet for hitting a rock does not sound that good 20:26 < kanzure> how would you snap the sheet exactly? 20:26 < fenn> snap the sheet? 20:26 < kanzure> you'd need some awesome acceleration on the edges 20:26 < kanzure> yeah 20:26 < kanzure> that's what you said, right? 20:26 < fenn> no 20:27 < fenn> you've read about point-focus mirror arrangement? 20:27 < kanzure> http://kmr.nada.kth.se/wiki/Main/PointFocus ? 20:27 < fenn> http://kmr.nada.kth.se/wiki/Main/PointFocus 20:27 < fenn> yep 20:28 < kanzure> oh, it's a solar concentrator 20:28 < fenn> ok, so that's basically the structure we're building in zero-g 20:28 < kanzure> a giant mirror-funnel 20:28 < fenn> just because it's easy to make 20:28 < fenn> now, the sunlight becomes more and more focused as you approach the focal point 20:28 < fenn> there's presumably a plane somewhere between the focal plane and the mirror, where you'd put the shutter 20:28 < kanzure> that's okay, you can cycle cold rocks 20:29 < kanzure> on the other side of the mirrors 20:29 < fenn> so, even though you have multi-TW/cm^2 on the asteroid face, the shutter only experiences, say, a few MW/cm^2 20:30 < kanzure> is TW/cm^2 enough to melt the materials? 20:30 < kanzure> I guess it has to be, nevermind. 20:30 < fenn> it doesnt matter 20:30 < kanzure> that's quite a number of watts 20:30 < kanzure> no? 20:30 < fenn> you dont want to melt the rocks anyway 20:30 < fenn> you want to induce thermal shock, and vaporize a thin surface layer 20:30 < fenn> these two processes operate on different timescales 20:31 < kanzure> http://en.wikipedia.org/wiki/Thermal_shock 20:31 < fenn> so i guess there'd be one frequency modulated by another one 20:32 < fenn> or you could just use thermal shock and hope the momentum carries the particle outwards 20:32 < fenn> or maybe just blow gas on it 20:33 < kanzure> TW/cm^2 should be able to move an object in space 20:33 < kanzure> especially if we have slowed it down 20:33 < fenn> yeah but is it fast enough to get out of the way? otherwise smoke will be covering the area we're focusing on 20:35 < fenn> damn wikipedia.. every time i read it i find some new tangent to run down 20:35 < kanzure> the solution is to take the integral 20:36 < fenn> no i believe you must use the arc-tangent 20:36 < fenn> tan^-1 20:38 < kanzure> that'll just give you the angle, not the set of all tangents 20:38 < kanzure> wait 20:38 < kanzure> I should have said you should take the derivative again 20:38 < kanzure> to get a picture of all of the tangents 20:52 < fenn> what's the point of having different desktops in KDE if window titles from all desktops pile up onto the same task bar? 20:53 < kanzure> don't know 20:53 < kanzure> I dislike the KDE scrolling method for the taskbar 20:53 < fenn> yuck, that is bad 20:53 < kanzure> I pile up 50 to 70 tabs a night for different windows (mostly papers that I'm reading) 20:54 < fenn> scroll wheel is so easy to hit on accident, especially with a laptop touchpad 20:54 < kanzure> okay, for dissipating the gas quickly enough 20:54 < kanzure> to get out of the way of the sunlight 20:54 < kanzure> just have an angular momentum of the asteroid 20:55 < kanzure> such that it'll create a spiral of gas that we can harvest above or below it 20:55 < fenn> the asteroid is spinning around the focal point? 20:55 < kanzure> no 20:55 < kanzure> I was thinking of a case where there's a shutter 20:55 < kanzure> a hole 20:55 < kanzure> through which the light will come 20:55 < kanzure> and on the other side we have the rock 20:55 < kanzure> and this rock will be spinning in place 20:55 < kanzure> the light will hit it and evaporate a layer 20:56 < kanzure> and that layer will also retain the angular momentum, ideally 20:56 < kanzure> I see no reason why it would not 20:56 < fenn> the asteroid will be rough, but i guess it's sorta like turning rough stock on a lathe 20:56 < fenn> so eventually it'll become a nice neat cylinder 20:56 < kanzure> sure 20:56 < kanzure> oh 20:56 < kanzure> the shavings from a lathe 20:56 < kanzure> also spiral, right? 20:57 < kanzure> I've never actaully used one. 20:57 < kanzure> *actually 20:57 < fenn> it depends, on a lot of things 20:57 < fenn> sometimes you get long stringy ribbons, sometimes you get dust 20:57 < fenn> sometimes it melts into a glob :( 20:58 < kanzure> as you increase the distance of your contraption from the sun, the greater the surface area you need 20:58 < kanzure> I bet we'll want this thing pretty close, no where near the asteroid belt 20:58 < kanzure> not to mention the extraction processes we will need to get the km^2 of aluminum in the first place 20:58 < fenn> i think the mirror is going to be the least expensive part of the system 20:59 < fenn> hurr 20:59 < fenn> ok, so it's a bit more than i thought 20:59 < kanzure> hm? 20:59 < fenn> 1*km^2 by 1 micron thick is ~6tons of aluminum 20:59 < kanzure> yeah ... 20:59 < kanzure> also, if we want to get energy through another way 20:59 < kanzure> I was thinking of the orbital algae farms 21:00 < kanzure> using these to get biofuel 21:00 < kanzure> which would power the mining machinery 21:00 < fenn> no no no no NO! 21:00 < kanzure> on this note I found an awesome document 21:00 < fenn> i dont care about your document, it's crap 21:00 < kanzure> that explained how to get a metal forge up and running on vegetable oil 21:00 < kanzure> hm? 21:00 < fenn> ok, on earth, maybe 21:01 < kanzure> bacteria grow on their own, as long as you provide the nutrition 21:01 < kanzure> we can bootstrap the nutrition with sea water 21:01 < fenn> oh, sea water 21:01 < fenn> yes, ON EARTH 21:01 < kanzure> hehe 21:01 < kanzure> yes, but think about it 21:01 < kanzure> how much water is in the atmosphere 21:01 < kanzure> the rest of the sea water contents are what we need to export 21:01 < kanzure> there's water that is accessible from the other side of the atmosphere 21:02 < fenn> how exactly are the bacteria going to grow in a giant chunk of nickel and iron? 21:02 < kanzure> no, this is not the same idea 21:02 < kanzure> this is for photosynthesis and storage of energy 21:02 < fenn> oh 21:02 < kanzure> the reason why biofuels do not work on earth is surface area 21:03 < kanzure> in space we have all the freakin' surface area we want 21:03 < fenn> lots of ways to store energy in space 21:03 < kanzure> you need to scale up the surface area 21:03 < kanzure> it's not for storing energy 21:03 < kanzure> it's for collecting it 21:03 < fenn> not really 21:03 < kanzure> yes, I've considered solar cells 21:03 < kanzure> but you'd need to be able to manufacture the solar cells 21:04 < fenn> algae is only really good for intricate molecular reactions we can't do otherwise 21:04 < kanzure> i.e., photosynthesis 21:04 < fenn> it's only considered in the context of supporting human "exploration" 21:04 < kanzure> ? 21:04 < kanzure> oh 21:04 < kanzure> solar cells? 21:04 < fenn> algae 21:05 < kanzure> I don't think you read the orbital algae farm article 21:05 < fenn> photosynthesis is only like, 3% efficient 21:05 < kanzure> the idea is to have giant tanks of algae 21:05 < kanzure> in water 21:05 < kanzure> wtf? 21:05 < kanzure> I'm pretty sure it's much more 21:05 < kanzure> our solar cells do 20% 21:05 < kanzure> and they are supposed to be less efficient 21:05 < fenn> Sugarcane is an exception as it can have almost 8% efficiency. 21:05 < kanzure> from Wikipedia - The light energy is converted to chemical energy using the light-dependent reactions. This chemical energy production is more than 90% efficient with only 5-8% of the energy transferred thermally. 21:06 < kanzure> http://en.wikipedia.org/wiki/Photosynthesis#Molecular_production 21:06 < fenn> Trees convert light in to chemical energy through the process of photosynthesis with a photosynthetic efficiency of approximately 0.2-0.5%. 21:06 < kanzure> hm 21:07 < fenn> it may be a matter of genetic engineering 21:08 < fenn> Through photosynthesis, sunlight energy is transferred to molecular reaction centers for conversion into chemical energy with nearly 100-percent efficiency. The transfer of the solar energy takes place almost instantaneously, so little energy is wasted as heat. However, only 43% of the total solar incident radiation can be used (only light in the range 400-700 nm), 20% of light is blocked by canopy, and plant respiration requires about 33% of the stored energy, which brings down the actual efficiency of photosynthesis to about 6.6% 21:08 < kanzure> Technology Review: Fuel from AlgaeUnfortunately this immediately means that the efficiency is going to be much less than 0.5%, as no crops (other than photosynthetic algae) capture more than ... 21:08 < kanzure> "and plant respiration requir" 21:09 < kanzure> so, at most 43% efficiency 21:09 < fenn> the 20% blocked by canopy is not really fair 21:09 < fenn> right, because plants are green, not black 21:09 < fenn> but anyway, this is compared to a micron thick layer of aluminum foil 21:10 < kanzure> puncturability? 21:10 < fenn> so what? 21:10 < kanzure> swarmer-fixing robots? 21:10 < fenn> just let it degrade 21:10 < kanzure> and where are you going to get this aluminum? 21:10 < fenn> it's not like a tether where you care if a bit of it breaks 21:11 < fenn> well, you dont have to use aluminum, it's just that there's a lot of it on the moon, and aluminum has a very high (highest?) reflectivity 21:11 < fenn> actually probably silver has the highest 21:11 < fenn> oh, i'll consult the oracle 21:11 < kanzure> eh, I'd prefer to stay away from the moon, there's lots of requirements for landing on the moon that are best avoided in my opinion 21:12 < kanzure> but if that's what's required ... 21:12 < fenn> it has something to do with the conductivity 21:12 < fenn> sure, moon makes sense in some scenarios, not so much in others 21:13 < fenn> http://en.wikipedia.org/wiki/Reflectivity <- look at the graph 21:13 < kanzure> odd dip 21:17 < kanzure> so how do we mine for aluminum 21:17 < kanzure> I'm guessing we need to use oxygen or hydrogen fuel 21:17 < fenn> why? 21:17 < kanzure> my LOX fractional distillation ideas? 21:17 < kanzure> because we need to get the aluminum 21:17 < kanzure> LOX is accessible from LEO 21:18 < kanzure> in the sense that we have the other side of the atmosphere 21:18 < fenn> chemical fuels are only good for high thrust, which you only need to get into orbit 21:18 < kanzure> Hall effect thrusters still need a gas fuel 21:18 < kanzure> so you have your gas there ;) 21:18 < fenn> eh.. 21:18 < fenn> sorta 21:18 < kanzure> Halls are slow, though 21:18 < kanzure> slow acceleration 21:18 < fenn> it doesnt matter 21:19 < fenn> there are a bazillion different proposals for mass launchers from the surface of luna 21:19 < fenn> i happen to like the rotovator concept 21:20 < kanzure> I've never seen a complete proposal/schematic for any type of launcher, anywhere 21:20 < kanzure> (I am angry about this.) 21:20 < fenn> what do you mean complete? 21:20 < fenn> like, tested debugged and packaged for sale? 21:20 < kanzure> okay, 'sufficient' to get the idea 21:21 < kanzure> I haven't seen any schematics, really 21:23 < fenn> ok, i see what you mean 21:23 < fenn> here's a picture http://www.permanent.com/t-massdr.htm 21:24 < kanzure> hahah 21:24 < kanzure> catapult 21:24 < fenn> cool site btw 21:24 < kanzure> that's easy enough to design 21:24 < kanzure> is it a rail gun? 21:24 < fenn> yes 21:25 < fenn> there are other schemes, like slingatron 21:25 < kanzure> there are many pages on the net on railguns 21:25 < fenn> er.. actually it's not a rail gun 21:25 < fenn> it's a gauss gun 21:25 < fenn> but wuteva 21:25 < kanzure> http://en.wikipedia.org/wiki/Coil_gun 21:32 < fenn> there are a number of papers on tethers.com but i think they might be too long and detailed for you 21:35 < fenn> this one appears to be most relevant to the current discussion: http://www.tethers.com/papers/CislunarAIAAPaper.pdf 21:36 < kanzure> hm, I have not explored the prospects of tethers on the moon 21:37 < fenn> the most appealing aspect of course is that we can do it with today's materials and technology 21:38 < fenn> compared to certain other tether concepts :) 21:38 < fenn> you can't de-orbit something with a mass driver 21:41 < fenn> something i almost never see mentioned is that vacuum tubes are amazingly inexpensive in outer space 21:41 < fenn> so something like a big rail gun suddenly costs a lot less to build 21:42 < fenn> and flywheel energy storage, etc 21:44 < fenn> if you decelerate the bucket at the end and have a loop of bucket track, you can think of the launcher as a giant flywheel 21:52 < fenn> fenn's corrolary to clarke's third law: any sufficiently undeveloped sci-fi technology is indistinguishable from magic 21:54 < kanzure> insufficiently developed, how about? 21:56 < fenn> havent worked out the details 21:57 < fenn> like, the author was too lazy to go and learn about physics and do the math to see if the idea would work at all 21:59 < kanzure> yep 21:59 < kanzure> and if you can't work out the math 21:59 < kanzure> then you should at least propose a way for somebody else to get started on the problem space 22:00 < kanzure> I am pretty sure that the only way we are going to be able to do the autogenix+self-replicator project is if we can do materials-engineering 22:00 < kanzure> where we can engineer materials to meet certain specifications 22:01 < kanzure> based off of their matter and energy requirements 22:01 < kanzure> but, I fear this might require a Grand-Unified-Theory or something 22:01 < kanzure> some 'mega theory' for predicting what the substrate of a certain property has to be 22:01 < kanzure> which is generally not good :( 22:01 < kanzure> I've never heard of something like that in materials science. 22:02 < kanzure> unless 22:02 < kanzure> unless we can possibly prove that self-replication can be done within a certain parameter space of materials 22:02 < kanzure> that way, we know which machines to build to automatically test materials for a certain property 22:03 < kanzure> but if the requirements turn out to be something weird like flows and viscosity and deformation, then that's not good for automated testing of a variety of different substances 22:08 < fenn> would you consider bio molecules like amino acids to be 'materials'? 22:08 < kanzure> yes, but not for the macroscale replicators we want 22:08 < kanzure> we're above the level of Brownian diffusion here 22:08 < kanzure> heh 22:08 < fenn> when i was laying out the clay-sand-salt replicator, there was a lot of chemistry going on 22:09 < fenn> not just gears and beams 22:09 < kanzure> right 22:09 < kanzure> but those were batch chemical reactions 22:09 < fenn> and electrodynamic plasma stuff too (maybe) 22:10 < fenn> the AMTEC electricity generator 22:10 < fenn> maybe i can get around that complexity with a sodium battery or something 22:11 < fenn> ok, and then you have control stuff, presumably a standard silicon computer chip 22:12 < kanzure> or graphene molecules 22:12 < fenn> i dont know much about the processes involved, but we can consider materials involved as trace elements for the most part 22:12 < fenn> well, graphene doesnt come from sand 22:12 < kanzure> graphene comes from carbon 22:12 < kanzure> hurray 22:12 < kanzure> and it's really easy to process 22:12 < kanzure> let's not include silicon fabrication 22:12 < fenn> ok, but the point was to do it with silicon 22:12 < fenn> i understand it's possible with carbon and maybe easier 22:13 < kanzure> the amount of machinery required to do silicon fabrication is more than you can afford 22:13 < fenn> bah 22:13 < kanzure> in the sense of dependency loops 22:13 < fenn> dependency loops are good remember? :) 22:13 < kanzure> but not if they exponentially add material requirements 22:13 < kanzure> i.e., the machinery to do si fabbing might add 2 new materials 22:13 < kanzure> and those 2 new materials might each add 2 new materials ... 22:13 < kanzure> but I guess you'll never know unless you scout it out 22:13 < fenn> ok so that's not a loop 22:14 < fenn> that's a tree 22:14 < kanzure> there's a good wikibook on chemical etching and silicon fabbing 22:14 < kanzure> ah, right 22:14 < kanzure> good point 22:14 < kanzure> but anyway, wikibooks has a great article 22:14 < kanzure> I mapped it out at 22:14 < kanzure> http://heybryan.org/notes.html I think 22:14 < kanzure> including the chemicals 22:14 < kanzure> so we can go figure out what elements are in the chemicals 22:20 < fenn> ok that's too much to do right now 22:20 < kanzure> but obviously it's possible to do it 22:20 < kanzure> so that's good :) 22:21 < fenn> there is some wiggle room too, but industry has naturally settled on the optimum 22:21 < fenn> so you'll never read about NaOH etching of silicon, for example 22:21 < kanzure> I want to experiment with graphene transistors. But I don't know how to make an excuse to distract myself from my other projects and ideas. 22:22 < kanzure> I can go buy the parts to do it, plus the chemicals, but shouldn't I be focusing on the other projects ? 22:22 < fenn> dunno.. actually doing something is good for publicity ;) 22:22 < kanzure> we don't need publicity, just damn good ideas 22:23 < fenn> 'hackaday: high school student makes carbon semiconductors in his basement from recycled pop-tarts' 22:23 < kanzure> that's instant "hire this kid" material 22:23 < kanzure> btw, I discovered today that hackaday is blocked from school 22:23 < kanzure> as "criminal skills" 22:23 < fenn> naturally 22:24 < fenn> dont you know the internet is full of sick demented people who like to fuck dogs? 22:24 < kanzure> yes, I do actually 22:24 < kanzure> admittedly, I've explored various regions of the internet in my travels 22:24 < fenn> besides, hackaday has a black background, and a skull, so it must be evil 22:24 < kanzure> ah, of course 22:29 < kanzure> http://www.ridgenet.net/~do_while/toaster.htm The Breakfast Food Cooker (only because I linked to this in #neuroscience a few moments ago, but it is also relevant to skdb) 22:33 < fenn> heh, "Specifically, we need an object-oriented language with multiple inheritance." 22:33 < kanzure> obviously this inheritance is the same as the dependency-loop specifications hehe 22:33 < kanzure> what we need is a simplified way of diagramming 22:33 < kanzure> this is how Feynman did QED 22:34 < kanzure> and he claimed it's the secret to solving any good problem 22:34 < fenn> we already have computer toasters (application-specific programs) 22:35 < fenn> i want a breakfast food cooker! an AutoCook 9000 22:39 < fenn> ah, mediaglyphics 22:40 < fenn> (feynman diagrams) 22:47 < fenn> Then, one evening, after working at CERN, I stopped on my way back to my apartment to visit some friends living in Meyrin where I smoked some illegal substance. Later, when I got back to my apartment and continued working on our paper, I had a sudden flash that the famous diagrams look like penguins. 22:51 < fenn> ok, aside from the wavy lines and curlicue lines, graphviz has all the same functionality 22:54 < fenn> http://www.mediawiki.org/wiki/Extension:GraphViz 23:29 < fenn> this type of diagram looks useful http://en.wikipedia.org/wiki/Image:Calvin-cycle3.png 23:40 < fenn> carbon dioxide to diamond via metallic sodium http://pubs.acs.org/cgi-bin/abstract.cgi/jacsat/2003/125/i31/abs/ja035177i.html 23:41 < fenn> i bet the same mechanism can yield different phases of carbon depending on the conditions 23:45 < kanzure> btw, I'll also install the export-db extension while I'm at it 23:46 < fenn> while you're at what? 23:47 < kanzure> the Graphviz extension ;) 23:53 < kanzure> fenn: http://heybryan.org/mediawiki/index.php/Graphviz -- done 23:54 < kanzure> http://heybryan.org/mediawiki/index.php/Special:ViewXML Export db as XML. 23:56 < kanzure> http://dbpedia.org/About "way to extract structured data from Wikipedia"