--- Day changed Sat Apr 04 2009 00:09 < kanzure> geodesic distance from curvature extrema based on growing regions associated to local Gaussian curvatures on seed vertices 00:09 < kanzure> http://en.wikipedia.org/wiki/Gaussian_curvature 00:14 < kanzure> an integral is the limit of the sum, is it really valid for them to call an integral a sum? 00:19 < kanzure> it's something like: find the curvature extrema of a shape; then for each of those points, take the sum of the geodesic distances to those points. Regular intervals made up of those sums (for each of the points) are then defined as a 'region' and any touching 'region' becomes a node in the Reeb graph. 00:24 < kanzure> I guess there's some threshold value that they're using for considering the mu function to be similar or something 00:24 < kanzure> and then those are the 'region intervals' 00:24 < kanzure> (the mu function is the sum of the geodesic distances at each of the selected points (local extrema)) 01:00 < ybit> for the record: "being back" for me is following along with the community, i'm going to have time to contribute eventually, but when and how much i don't know. i can give you a better estimation of what and how much when this this calendar is created. 01:19 < kanzure> this calendar thingy, is it real? 01:37 < ybit> yup 01:44 -!- xp_prg [n=xp_prg3@c-24-130-14-113.hsd1.ca.comcast.net] has joined #hplusroadmap 03:06 -!- xp_prg [n=xp_prg3@c-24-130-14-113.hsd1.ca.comcast.net] has quit ["This computer has gone to sleep"] 05:59 -!- splicer_ [n=patrik@h187n1c1o261.bredband.skanova.com] has joined #hplusroadmap 06:27 -!- jm|earth [n=jm@p57B9DC38.dip.t-dialin.net] has joined #hplusroadmap 06:55 -!- davidnunez [n=davidnun@209-6-203-217.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com] has joined #hplusroadmap 07:14 -!- jm|earth [n=jm@p57B9DC38.dip.t-dialin.net] has quit [Read error: 113 (No route to host)] 08:12 < fenn> reminds me of "where's waldo" http://www.gigapan.org/viewGigapan.php?id=17217 08:41 < fenn> haruhi eat your heart out http://share.gigapan.org/viewGigapan.php?id=6499 09:25 < splicer_> http://www.gamerevolution.com/images/misc/image/waldo.jpg 09:32 -!- davidnunez [n=davidnun@209-6-203-217.c3-0.smr-ubr1.sbo-smr.ma.cable.rcn.com] has quit [] 10:21 -!- cis-action [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 10:23 < fenn> i think i want to make one of these http://www.lockheedmartin.com/news/press_releases/2009/MFC_022609_LockheedMartinUnveilsExoskeleton.html 10:24 < fenn> with spring stilts though, so i can run 30 mph 10:25 -!- cis-action is now known as has100ideas 10:28 < fenn> anyone have numbers on power usage for various exoskeleton usage scenarios? 10:29 < kanzure> no :( 10:29 < kanzure> wasn't there a book that analyzed how much energy Superman and Goku would have to have in order to do the various things that they do? 10:29 < kanzure> such as blowing up planets and crashing through mountains? 10:30 < fenn> eh.. 10:31 < fenn> i just want to throw some cop cars around.. not blow up mountains 10:33 -!- has100ideas is now known as cowell 10:34 < kanzure> http://ask.slashdot.org/article.pl?sid=09/04/04/1338228 <- I think this is a bad sign 10:34 < kanzure> there's so many people posting saying "You have no choice" 10:34 < fenn> To help its engineers better understand the challenges that the elderly have behind the wheel (and feed the fears of Japan's midlife crisis population), Nissan has developed an "old suit" simulating stiff movements, blurred vision, bad balance and extra weight (probably to simulate weaker strength). 10:35 < kanzure> opposite direction 10:35 < fenn> "JUST publish it" 10:36 < cowell> I think you really just want a couple of these (http://digg.com/d1m5SJ) instead of a suit 10:37 < fenn> huh. http://en.wikipedia.org/wiki/Statutory_invention_registration 10:37 < kanzure> is that like statutory rape? 10:37 < fenn> basically 10:37 < fenn> all the pain of applying for a patent without actually getting a patent 10:38 < kanzure> "dear mr. president, .." 10:38 < kanzure> basically the only way for this to get done is for something to get passed in the government I think 10:38 < fenn> grrr flash video 10:38 < kanzure> fight it with fire. 10:38 < fenn> i wish i had a command line flash extractor 10:38 < kanzure> (the flash video, I mean) 10:38 < fenn> right now i have to use firefox to do it 10:39 < kanzure> oh, there was something I saw on slashdot the other day 10:39 < kanzure> it was a full javascript+HTML unit testing engine thingy for web scraping 10:39 < kanzure> if you combine that with wireshark and a flash plugin, then you should be good to go 10:39 < kanzure> why are we talking about DNA extraction on diybio again? What's wrong with the protocols that we talked about before? 10:43 < cowell> probably because it is the first thing everyone always things about and we got new members? 10:43 < fenn> time to write a faq 10:43 < kanzure> why haven't you assembled a FAQ yet? 10:43 < kanzure> seriously though 10:43 < kanzure> please don't make me do it. 10:43 < kanzure> I'll be all cranky for the rest of the day 10:43 < cowell> why haven't *you* assembled a faq? ha ha 10:43 < fenn> and it'll just be a huge pile of irrelevant links 10:43 < cowell> ok 10:43 < cowell> ha ha ha 10:43 < kanzure> aw 10:43 < kanzure> come on 10:44 < cowell> ok I'll start a faq. Jason Morrison and I actually started rebuilding the website and we've got FAQ on our list 10:45 < kanzure> http://htmlunit.sourceforge.net/ 10:45 < kanzure> also, can I say 'I told you so' about the multiple mailing lists deal? 10:45 < kanzure> diybio-nyc, diybio-sf, diybio-chicago, diybio-london, and nobody knows to post to the other lists or what's going on at the other places, when it's better if they did 10:46 < fenn> ah the old "to crosspost or not to crosspost" argument 10:47 < kanzure> cowell: I think a good start to the FAQ would just be to go through the archives and categorize posts into different threads 10:47 < kanzure> http://heybryan.org/om.html 10:47 < kanzure> that's what I did for the openmanufacturing list 10:47 < kanzure> it's not quite a FAQ 10:47 < cowell> no, I'm not sure an I-told-you-so is a good idea 10:47 < cowell> I agree with you 10:48 < cowell> Bobe does not - he actually wanted to scold you for cross posting 10:48 < cowell> so I don't know what is better 10:48 < cowell> let's not have a holy war about it 10:48 < kanzure> you're about to get yourself a holy war with the forum idea too :p 10:48 < kanzure> but one step at a time I guess 10:49 < cowell> so do you have a similar list of links at heybryan.org/diybio.html? 10:49 < fenn> forums are evil 10:49 < cowell> ok 10:49 < kanzure> cowell: no :( 10:49 < cowell> well, here's the goal 10:49 < cowell> with the forum 10:49 < fenn> allow people to use animated avatars and smiley icons? 10:49 < kanzure> cowell: IT'S ON MY TODO LIST 10:49 < cowell> basically, there are about 1000 undergraduate igem students actually building biological systems for iGEM right now 10:49 < kanzure> oh, sorry, caps 10:49 < kanzure> didn't mean to yell that 10:49 < fenn> wtf does iGEM have to do with diybio 10:50 < fenn> srsly 10:50 < fenn> they have an entire lab just offered to them 10:50 < fenn> with access to professional staff 10:50 < fenn> that's not DIY 10:51 < cowell> lots of things. but in particular, they practically have a lot of the same technical problems anyone starting with bio101 and trying to do bioengineering has. So they get help from their local experts, and that's it. 10:51 < cowell> The idea is that we also have the same problems, and we could tap into their expertise by helping bridging the two communities to share technical help and tips 10:51 < cowell> and iGEM HQ isn't going to start them a mailing list or forum. 10:52 < kanzure> but there already is an igem mailing list 10:52 < kanzure> what are you talking about? 10:52 < cowell> oh really 10:52 < kanzure> igem-interest is a completely legit list 10:52 < cowell> does anyone ever ask questions on it? 10:52 < kanzure> no, nobody uses email 10:52 < fenn> so let's make a forum for them! :( 10:52 < kanzure> gah 10:52 < kanzure> fenn: so basically the way that I've approached this 10:52 < cowell> stop being so negative 10:52 < kanzure> is that I've scolded them for wanting to use forums 10:52 < kanzure> but 10:53 < kanzure> if they implement a mail2forum gateway, I will not be as negative 10:53 < fenn> cowell: i can't help it, i'm trapped on this planet 10:53 < cowell> ok 10:53 < kanzure> if they won't use a mailing list, why would they use a forum? 10:53 < kanzure> http://heybryan.org/forums.html 10:53 < kanzure> http://heybryan.org/mailing_lists.html 10:53 < cowell> I'm leaving and going to the diybio room. thanks for the talk. bryan, if you want to constructively help me figure out how to engage the large igem biohacking community to help us do diybio sb work, come on over 10:54 -!- cowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has left #hplusroadmap [] 10:54 < kanzure> wow 10:54 * fenn shrugs 10:54 < kanzure> I don't think engaging the igem people is the way to go though 10:54 < kanzure> I mean, there are alternatives that are more related to diybio 10:56 < fenn> i think these boston people dont understand what the rest of the country is like 10:56 < kanzure> time warp bubble manifold around boston dealy? 10:56 < fenn> there's just so much wealth spilling out the seams there it's a different world 10:57 < kanzure> heh 10:57 < kanzure> "wealth" 10:57 < fenn> technical know-how and access to tools and materials 10:57 < fenn> and money 10:57 < kanzure> right 10:57 < fenn> but there's money lots of places 10:57 < kanzure> I'm still trying to transition to university life 10:58 < kanzure> "oh, we just spent a thousand dollars on a bullshit filter design? no big deal, btw do you want a job? ok, great!" 10:58 < fenn> dont get too comfy :) 10:58 < kanzure> actually I'm getting to stay another year 10:58 < kanzure> these two semesters "never happened" 10:58 < fenn> what does that mean exactly? 10:58 < kanzure> my record is reset to zero 10:59 < fenn> how did you manage that? 10:59 < kanzure> dad died 10:59 < fenn> ooo sneaky 10:59 < kanzure> mischevious of me, eh? 10:59 < kanzure> also, the psychiatrist (pre-scheduled visit yesterday) was able to convince mom not to put me into the home 11:00 < fenn> dont waste another $1e4 +- 50% 11:00 < kanzure> he has patients that go to that program and he thinks I'm too functional to get anything of value out of it 11:00 < kanzure> right 11:00 < kanzure> I'm pretty sure I'm going to be able to take a ridiculously small course load 11:00 < kanzure> maybe something like 2 classes? 11:00 < kanzure> and with the income from the two labs, things might be good 11:01 * kanzure goes down to eat 11:02 < fenn> netlist import for stripboard cad http://jukumagic.googlecode.com/svn/wiki/screenshot-r36.png 11:03 < fenn> stick that in your graph minimization algorithm 11:04 < kanzure> my what minimization? 11:04 < kanzure> doesn't geda do netlists? 11:05 < fenn> geda doesn't do stripboard 11:05 < fenn> all electronics cad software does netlists (unless it really really sucks) 11:05 < fenn> not sure what sort of netlist this is importing 11:05 < fenn> probably gEDA though, knowing the dev 11:06 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 11:06 < macowell> ha ha, so much for making a point. 11:08 -!- amaruk [n=amaruk@p4FDC220A.dip0.t-ipconnect.de] has joined #hplusroadmap 11:11 < fenn> my beagleboard showed up today 11:11 < fenn> waiting on SD card and serial cable 11:11 < fenn> guess i could use the microsd in an adapter 11:11 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has left #hplusroadmap [] 11:12 -!- cowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 11:16 < fenn> looks like berkeley exoskeleton averages 250W 11:16 < kanzure> cowell: what were you laughing about? just wondering 11:16 < fenn> that's only ... 70 lithium batteries :\ 11:17 < cowell> that I left in a huff and then came back. I am kind of grouchy today 11:17 < kanzure> fenn: did you see the virus-assembly-electrodes papers I added? 11:17 < fenn> $300 bucks worth.. not as bad as i thought 11:17 < kanzure> cowell: happens to the rest of us. 11:17 < fenn> no, i've read about that before though. angela belcher right? 11:17 < kanzure> http://heybryan.org/books/papers/Fabricating%20Genetically%20Engineered%20High-Power%20Lithium%20Ion%20Batteries%20Using%20Multiple%20Virus%20Genes.pdf 11:17 < kanzure> http://heybryan.org/books/papers/Virus-Enabled%20Synthesis%20and%20Assembly%20of%20Nanowires%20for%20Lithium%20Ion%20Battery%20Electrodes.pdf 11:18 < kanzure> yes 11:19 < fenn> cowell: my 10-minute impression of igem is that they almost never finish anything 11:20 < fenn> so good luck getting them to actually document anything, if they can't even finish the project in time 11:20 < kanzure> that's what jonathan cline argues, fenn 11:20 < kanzure> he's here in austin, we should meet up with him sometime 11:20 < fenn> what's he doing in austin? 11:20 < kanzure> he moved here 11:20 < fenn> oh. why? 11:20 < cowell> fenn: ok. it sounds like you're trying to convince me not to deal with igem. 11:21 < kanzure> I think it might be okay to deal with igem, I don't see too much harm coming from being friendly 11:21 < kanzure> however 11:21 < fenn> cowell: i just think they're the wrong place to invest a lot of effort, when you should be focusing on the needs of "real" diy-bio people 11:21 < kanzure> isn't there other things to be doing? 11:22 < fenn> where you = diybio people 11:22 < cowell> fenn: how many "real" diy people are there? 10? 700? 11:22 < fenn> i have no idea 11:22 < fenn> at least 20 looking at the mailing list 11:22 < cowell> I would estimate 20-ish as well 11:23 < fenn> so by the 80/20 rule that means you have 100 "active" members :) 11:23 < fenn> and that aint bad 11:24 < fenn> kanzure: somehow i doubt gold nanowires are going to be cost effective 11:25 < kanzure> how much gold is in the ambient environment? in such a way that cells could find it, and then offload it to viruses 11:25 < cowell> fenn: cool igem projects from last year 11:26 < cowell> 1. http://2008.igem.org/Team:BCCS-Bristol/Modeling 11:26 < fenn> kanzure: ambient environment? there's a sizable concentration in seawater, it's not falling out of the sky though 11:26 < cowell> 2. http://2008.igem.org/Team:Slovenia 11:27 < cowell> 3. http://2008.igem.org/Team:Imperial_College/Project 11:27 < cowell> 4. http://2008.igem.org/Team:MIT/Lactobacillus 11:27 < cowell> 5. read this: http://www.the-scientist.com/blog/display/55178/http://2008.igem.org/Team:BCCS-Bristol/Modeling 11:28 < fenn> pretty computer 11:29 < fenn> too bad they are running matlab and java on it.. 11:30 < fenn> this doesn't seems like a supercomputer-class problem to me 11:31 -!- davidnunez [n=davidnun@140.247.241.205] has joined #hplusroadmap 11:32 < cowell> well, you could have told them that using the igem-discuss list. Oh wait, it's moderated, so no you couldn't 11:33 < fenn> moderated or closed to outsiders? 11:33 < fenn> their simulations look more like gas dynamics than blobs of goo 11:33 < fenn> was expecting something like myxobacteria 11:34 < kanzure> cowell: it's simply that there are some people who do not know how to communicate using computers 11:34 < kanzure> or don't understand the importance of it 11:34 < fenn> ok, vaccines; can DIYers actually do this? won't we get arrested for "practicing medicine without a license"? 11:37 < fenn> biofabricator subtilis makes what? or is it just a general platform for making other stuff? 11:38 < fenn> seems kind of strange to build a factory without a general idea of what sort of product you'll be making 11:39 < splicer_> There is probably a division of labor... some build the organism and others test it in the target. 11:40 < fenn> Chloramphenicol Acetyltransferase (antibiotic resistance enzyme) was their "biomaterial"? 11:41 < kanzure> cowell: another idea for the FAQ would be to post and ask people for which threads they found the most helpful in the past 11:41 < fenn> registration required to the-scientist.com 11:42 < fenn> ah the lactobacillus thing is cool 11:42 < fenn> i had the same idea like 10 years ago 11:43 < fenn> then school beat the interest in genetic engineering out of me 11:43 < fenn> another idea in similar vein is an anti-stinky-fart culture 11:44 < fenn> selectively favor anaerobic bacteria that don't produce H2S 11:45 < fenn> so, now i'm wondering why i read all that 11:46 < kanzure> cowell was trying to convince you that igem was so cool that it made it diybio 11:47 < fenn> igem is a great idea and i wish it were around when i was in school 11:47 < fenn> but it's like comparing computer science projects to open source development 11:48 < fenn> except.. less so 11:48 < fenn> because even the poorest programmer has a (theoretically equivalent) computer 11:50 < cowell> ok 11:50 < fenn> anti-pimple culture (kill staph aureus) 11:50 < fenn> well, not kill it, but out-compete it with non-pathogenic varieties 11:52 < cowell> I hold a different perspective than you, fenn. I like igem. I think igem projects are an existence proof of the viability of small teams of relative newcomers with a "small" amount of capital and access to some kind of mentorship repeatably accomplishing interesting results with synthetic biology. 11:53 < fenn> they still have the institutional public image though 11:54 < cowell> who cares! 11:54 < fenn> "students from did such n such cool thing" is totally different from "students from did cool thing" 11:54 < fenn> regardless how much money they actually have 11:54 < cowell> public image is a means to an end 11:55 < fenn> most of the stuff that comes out of MIT is totally doable by the amateur basement hacker 11:55 < cowell> yay! we agree. 11:56 < cowell> and by MIT, do you mean iGEM? or actually all of MIT? 11:56 < fenn> but the way it's framed, and the lack of funding sources and infrastructure for amateur research make it much more difficult 11:56 < fenn> well, mostly i was thinking of the media lab 11:57 < fenn> i realize it's a huge place 11:57 < fenn> i'd like to see some sort of community science labs, open to people without credentials for a small fee 11:58 < cowell> [working on it] 11:58 < kanzure> I thought we were already working on that? 11:58 * fenn grumbles 11:58 < kanzure> cowell: could you send me an email to bug me to write the diybio.html page or diybio FAQ? if you send me an email, I'll get around to it later today maybe, or something 11:58 < cowell> seattle open labs, noisebridge/langton labs in SF, whatever we can build here in boston 11:58 < kanzure> I'm about to go apartment hunting 11:58 < cowell> ok 11:58 < cowell> good luke, kanzure 11:58 < cowell> err 11:58 < kanzure> skywalker? 11:58 < fenn> there's only so many different directions i can gallop at once; personally i won't be collecting any bio equipment any time soon 11:58 < cowell> luck* 11:59 < kanzure> fenn: cline wants to though, so I mentioned that I know of a good place to put the equipment if he wants. 11:59 < fenn> ah, cline would be welcome 11:59 < kanzure> you really need to meet up with him. 11:59 < kanzure> just because. 11:59 < fenn> i wasn't really impressed by his student projects :x 11:59 < kanzure> hm? his what? where? 11:59 < fenn> um, on the internet somewhere 12:00 < cowell> 88proof? 12:00 < kanzure> cowell: so anyway, did you recently see the physicaldesignco company? 12:00 < fenn> anyway i doubt my student projects were very impressive either 12:00 < kanzure> basically what they are is a group out of MIT from the Digital Design Lab (or something) in the architecture department 12:00 < kanzure> Physical Design Co. allows users to upload drawings of buildings 12:00 < fenn> http://88proof.com/hardware/ 12:01 < cowell> cool 12:01 < kanzure> ack 12:01 < kanzure> need to go, but please do check out my post to OM about it 12:01 < kanzure> automatic instruction generation and such, kind of important for diybio 12:01 < fenn> physical design co is basically a shape grammar interfaced to a cnc plywood router 12:01 < kanzure> right right 12:01 < fenn> their grammar could be useful for a lot of other things besides houses 12:01 < fenn> like, that lasercut acrylic stuff, for example 12:02 < cowell> hey fenn, who are you anyway? 12:02 < fenn> some mad scientist 12:02 < fenn> ben lipkowitz 12:02 < cowell> kiko gels? 12:02 < kanzure> oh, I have two more minutes 12:02 < fenn> yeah i posted in that thread 12:03 < cowell> fablab austin? 12:03 < fenn> i think everyone missed the point of what i was saying though 12:03 < fenn> "fablab" or something like it 12:03 < cowell> great 12:04 < kanzure> it's not quite the same thing though. 12:04 < cowell> I met one of the guys who flies around and helps boot-up fablabs recently, and he and I were thinking about approaching the fablab group formally about establishing some kind of basic biotech module for fablabs 12:04 < fenn> last night we were discussing market segments for sex robots 12:04 < kanzure> cowell: Todd? 12:05 < fenn> the MIT fablab (i say MIT to distinguish it from a generic hacker space) approach is to throw a bunch of money at something and hope it works 12:05 * kanzure turns the key 12:05 < fenn> instead of letting things grow organically 12:05 < kanzure> a good cite on that would be eric's post 12:05 < fenn> now, i'm not sure which is better :\ 12:05 < kanzure> http://groups.google.com/group/openmanufacturing/msg/2fccdde02f402a5b 12:05 < kanzure> http://groups.google.com/group/openmanufacturing/msg/f456aebde5952d03? 12:05 < kanzure> http://groups.google.com/group/openmanufacturing/msg/2279e9a23f644639 12:05 < kanzure> http://groups.google.com/group/openmanufacturing/msg/d488e3b75671da7f 12:05 < fenn> but if you don't have people throwing money at you, there's not much choice 12:06 < cowell> kanzure: no, it was an amateur biohacker working at microsoft redmond named mez. (twitter: @ramez) 12:06 < fenn> so when i talk about a fablab on every block, i'm not considering the MIT approach as feasible 12:06 < kanzure> ok, I think fenn can handle this for now 12:07 < fenn> cowell: if you are at all interested in openmanufacturing, at least read all the posts by eric hunting 12:07 < cowell> I think community is important. 1:1 person-fabricator is a fine long-term goal, but there are strong economical and pedagogical reasons for building semi-sentralized fablabs, right? 12:07 < cowell> I read one by erc. 12:07 < fenn> pedagogical, no 12:08 < fenn> that's just academia not "getting it" 12:08 < cowell> I disagree 12:08 < cowell> there is an educational compenent - you have to teach users how to use the equipment 12:08 < fenn> mass production is going to always benefit from centralization; simple geometry 12:08 < fenn> of course you have to teach users to use it 12:09 < cowell> small communities formed around common workshops seems like a great way to do that 12:09 < fenn> but you might have missed the fact that we're living in the future.. we can stream video on demand, auto-generate 3d VR animations 12:09 < cowell> instead of a basement lab for everyone 12:09 < fenn> and we're talking in real time several thousand miles apart 12:09 < fenn> well, 1.5k 12:09 < cowell> it's not technological, it's societal 12:09 < fenn> i didn't say basement, btw 12:10 < fenn> fablab on every block was meant to imply a community space 12:10 < cowell> oh 12:10 < cowell> ok 12:10 < cowell> I think that is a great plan 12:11 < fenn> eric always talks about how you have to design for urban environments if you want something to be scalable 12:11 < fenn> so expecting everyone to have a fully equipped machine shop in their apartment is not scalable 12:11 < fenn> even though there are people with private machine shops 12:12 < fenn> i'm dismayed by how few people are even thinking about automation 12:13 < fenn> when you can buy an automated printing robot for $30, manual pipetting is a crime 12:14 < fenn> benefits from automation extend to so many different areas it's impossible to even think of it all at once 12:15 < cowell> I agree! 12:15 < fenn> are there any standard formats for pipetting procedures? 12:15 < fenn> i remember seeing some files on oww but couldnt download them or something 12:15 < fenn> more important is that the format is open and extensible 12:21 < fenn> kanzure: the amp*hour numbers on those nanowire papers are insane, if the electrode is a significant portion of battery mass 12:23 < fenn> the gold/cobalt ones 13:03 -!- samrose [n=samrose@adsl-99-147-180-206.dsl.lgtpmi.sbcglobal.net] has joined #hplusroadmap 13:03 < fenn> i've only read the "power armor" article but it looks like a good index of interesting articles: http://www.dcr.net/~stickmak/JOHT/ 13:16 < cowell> hey, I'm giving a talk on diybio right now with kay aull and jason morrison for xorcon.org 13:16 < cowell> here's the streaming video 13:16 < cowell> http://www.ustream.tv/channel/berkman-center-video-fishbowl 13:48 -!- willPow3r [n=will@cpe-66-75-6-181.san.res.rr.com] has joined #hplusroadmap 13:53 < wrldpc> GO DIYBIO GO! 13:55 < fenn> huh. "Several chemical research companies are experimenting with diamond-coating fine wires. Tests have shown that the resulting diamond coating approaches the strength of perfect diamond whiskers. All we have to do is set up a process to make these diamond-coated wires in continuous lengths, with the metal substrate etched out, and we have Beanstalk material." 13:56 < fenn> this was written before space elevators started being hyped 13:56 < wrldpc> is this being archived? (the diybio berkman center feed?) 13:58 < willPow3r> link? 13:59 -!- xp_prg [n=xp_prg3@c-24-130-14-113.hsd1.ca.comcast.net] has joined #hplusroadmap 13:59 < wrldpc> http://www.ustream.tv/channel/berkman-center-video-fishbowl 14:01 < willPow3r> thx 14:09 < willPow3r> lol wtf 14:19 -!- wrldpc [n=worldpea@pool-173-48-214-204.bstnma.fios.verizon.net] has quit [Read error: 113 (No route to host)] 15:19 -!- cowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has quit [] 15:20 -!- xp_prg [n=xp_prg3@c-24-130-14-113.hsd1.ca.comcast.net] has quit ["This computer has gone to sleep"] 15:21 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 15:21 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has quit [Client Quit] 15:22 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 15:23 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has left #hplusroadmap [] 15:32 -!- amaruk [n=amaruk@p4FDC220A.dip0.t-ipconnect.de] has quit ["ChatZilla 0.9.84 [Firefox 3.0.8/2009032608]"] 15:40 -!- samrose [n=samrose@adsl-99-147-180-206.dsl.lgtpmi.sbcglobal.net] has quit [Read error: 110 (Connection timed out)] 16:14 < kanzure> found something 16:15 < kanzure> fenn, insane in a good way? 16:18 < kanzure> the prices are kind of outrageous for apartments, but I guess I can afford something halfway decent 16:20 -!- samrose [n=samrose@c-24-11-214-181.hsd1.mi.comcast.net] has joined #hplusroadmap 17:07 -!- cis-action [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 17:07 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has joined #hplusroadmap 17:18 -!- samrose [n=samrose@c-24-11-214-181.hsd1.mi.comcast.net] has quit [Read error: 110 (Connection timed out)] 17:39 -!- wrldpc [n=worldpea@c-76-19-107-75.hsd1.ma.comcast.net] has joined #hplusroadmap 17:52 -!- wrldpc [n=worldpea@c-76-19-107-75.hsd1.ma.comcast.net] has quit [] 17:59 < kanzure> so I was up until 3 am finishing some work for Campbell, it's not particularly interesting work, but if anyone is interested in glancing over it, check out this: http://sata.serveftp.org/~bryan/3000CFGs_complete.zip 18:00 < kanzure> basically it's the thousand-by-thousand matrix of distances between different designs, where a distance is defined as the euclidean norm of a 'component matrix' (actually, what's called a 'dsm' where array[i][j] represents the number of connections between components of type [i] and of type [j]) 18:00 < kanzure> and then some extra stuff like sorting for the top 50 "most different designs" 18:10 -!- davidnunez [n=davidnun@140.247.241.205] has quit [] 18:20 -!- cis-action [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has quit [] 18:20 -!- macowell [n=cis-acti@dhcp-0000018522-23-6e.client.student.harvard.edu] has quit [] 18:33 -!- xp_prg [n=xp_prg3@mf80f36d0.tmodns.net] has joined #hplusroadmap 18:52 -!- xp_prg [n=xp_prg3@mf80f36d0.tmodns.net] has quit ["Leaving"] 18:56 < kanzure> so I sent out the email about the diybio faq, please don't kill me 19:18 -!- wrldpc [n=worldpea@c-98-217-194-116.hsd1.ma.comcast.net] has joined #hplusroadmap 19:25 -!- gene [n=chatzill@wireless-128-62-92-192.public.utexas.edu] has joined #hplusroadmap 19:34 -!- willPow3r [n=will@cpe-66-75-6-181.san.res.rr.com] has quit [Remote closed the connection] 19:36 -!- willPow3r [n=will@cpe-66-75-6-181.san.res.rr.com] has joined #hplusroadmap 19:40 -!- xp_prg [n=xp_prg3@me00f36d0.tmodns.net] has joined #hplusroadmap 19:47 -!- fenn [n=fenn@cpe-72-177-52-180.austin.res.rr.com] has quit [Read error: 110 (Connection timed out)] 19:59 < kanzure> http://heybryan.org/books/papers/Using%20assembly%20representations%20to%20enable%20evolutionary%20design%20of%20Lego%20structures%20-%20Regli.pdf 19:59 < kanzure> Using assembly representations to enable evolutionary design of Lego structures 20:01 -!- wrldpc [n=worldpea@c-98-217-194-116.hsd1.ma.comcast.net] has quit [] 20:01 < kanzure> huh, they have a shape grammar for lego assemblies. how nice of them. 20:02 < kanzure> heh, 'for now our program can only operate on 3 types of legos: beam, brick and plate' 20:02 < gene> is this the evolutionary algorithm that made a bridge? 20:04 < kanzure> no? 20:07 -!- cis-action [n=cis-acti@dhcp-147-144.harvard.edu] has joined #hplusroadmap 20:07 -!- macowell [n=cis-acti@dhcp-147-144.harvard.edu] has joined #hplusroadmap 20:24 < kanzure> gah, success! the correct keyword to search for is "compliant mechanisms" 20:26 < kanzure> oops, nevermind. those are just for elastic deformation. 20:26 < gene> what are you searching for? 20:27 < kanzure> topology decomposition and evaluation of male/female connection geometries 20:48 < gene> that sounds sort of funny 20:52 -!- jm|earth [n=jm@p57B9DC38.dip.t-dialin.net] has joined #hplusroadmap 21:05 < kanzure> yeah, lots of papers have funny sounding papers 21:05 < kanzure> *funny sounding titles 21:06 < kanzure> I guess I can just use the Reeb graph method except take the CSG subtraction of a port in a prism and then compute the Reeb graph of that inverted structure, and then check for geometrically compatible thingies 21:20 < kanzure> http://heybryan.org/books/papers/The%20analysis%20of%20potential%20mating%20trajectories%20and%20grasp%20sites%20-%201993.pdf 21:20 < kanzure> The analysis of potential mating trajectories and grasp sites 21:21 < gene> hahahaha 21:21 < gene> what discipline is this under? 21:22 < willPow3r> robotics 21:22 < gene> really 21:24 < kanzure> hm, there seem to be a few trajectory planners in the literature 21:24 < kanzure> not what I'm looking for. you need to answer "what to target" 21:27 < kanzure> oh, one method might be to analyze interfences between two parts and find the least-volume combination of the two parts with zero interferences. 21:27 < kanzure> does that make sense to anyone but me? 21:31 < kanzure> http://heybryan.org/books/papers/Geometric%20reasoning%20about%20assembly%20tools.pdf Geometric reasoning about assembly tools (also good) 21:40 < willPow3r> are there any good note-taking apps for linux? 21:40 < willPow3r> i'm looking for something that could be used in a lecture 21:47 < gene> huh 21:48 < gene> CO2 turns into a liquid at 75 PSI 21:52 < kanzure> willPow3r: I just use kwrite or whatever I have installed 21:52 < kanzure> however, I hear LyX is useful for latex notes (especially math) 21:52 < kanzure> it's not optimized for lecture note taking, however 21:54 < willPow3r> tomboy looks good but its so slow for some reason 21:56 < willPow3r> lyx == 231 MB download?? i hope its good 21:59 < kanzure> don't count on it 21:59 < kanzure> argh, why is Elsevier down? 21:59 * kanzure wants to get "A gap-based approach to capture fitting conditions for mechanical assembly" 22:01 < kanzure> "Assembly-part automatic positioning using high-level entities of mating features" 22:05 < willPow3r> vym looks promising 22:11 -!- xp_prg [n=xp_prg3@me00f36d0.tmodns.net] has quit ["Leaving"] 22:12 < kanzure> hrm. another method would be to define a bounding box for a given model, and then volumes are defined for regions that extend from the model to the bounding box as regions for inputs/connectors/thingies- much like styrofoam protection in packaging I guess 22:12 < kanzure> or maybe there's a way to specify it in OCC. 22:13 -!- jm|earth [n=jm@p57B9DC38.dip.t-dialin.net] has quit [Read error: 60 (Operation timed out)] 22:17 < kanzure> http://www.ceremade.dauphine.fr/~peyre/numerical-tour/tours/fastmarching_mesh/ geodesic meshes with scilab 22:17 < kanzure> http://code.google.com/p/geodesic/wiki/ExactGeodesic 22:17 < kanzure> yay 22:23 < kanzure> http://www.cs.jhu.edu/~misha/Fall04/ good papers on shape analysis and retrieval 22:35 < kanzure> "Spatial reasoning for the automatic recognition of machinable features in solid models" 22:41 < kanzure> http://www.visionbib.com/bibliography/twod293.html Use of Skeletons for Recognition and Representation (all hail Keith Price) 23:38 < drazak> kanzure: hey 23:47 -!- cis-action [n=cis-acti@dhcp-147-144.harvard.edu] has quit [] 23:47 -!- macowell [n=cis-acti@dhcp-147-144.harvard.edu] has quit [] 23:51 < willPow3r> LyX is pretty damn good.