--- Day changed Fri Mar 20 2009 00:01 < kanzure> (12:01:38 AM) Amy Sun: nah, we had some lawyers craft a "ok for personal and experimental use" generic thing 00:02 < gene> you know I don't even know if afghanistan has IP laws yet 00:03 < kanzure> I don't think you understand how backwards that is 00:06 < gene> hmmmm... I wonder if micronesia has IP laws 00:06 < fenn> what is wrong with standard licenses? why did they make their own license? 00:07 < kanzure> (12:02:24 AM) Amy Sun: as far as i'm told by the smari's of the world, nothing comprehensive exists 00:07 < kanzure> (12:05:27 AM) Amy Sun: no one i've ever met - that's academic, industry, defense, or hacker community - bats an eyelash to ask if they are allowed to use something 00:07 < kanzure> (12:06:35 AM) Amy Sun: it's like having a rigid schedule to follow at burning man 00:08 < fenn> it matters if i'm going to share designs based on your work 00:09 < fenn> copyright applies to publishing/distribution, not use 00:10 < kanzure> (12:10:12 AM) Amy Sun: you either keep a idea completely secret 'cause you're a dumbass and think that no one else could have that idea, or you get over it and start engaging with others 00:10 < kanzure> blah 00:10 < kanzure> she doesn't get it. 00:11 < fenn> it's about enabling people to take your idea and extend it 00:11 < fenn> if you have a custom license that restricts people's use to personal and experimental use only, you'll only get mediocre involvement from hobbyists (if that) 00:12 < fenn> it's really not even about ideas, it's infrastructure 00:12 < fenn> i can say "parametric associative solid modeler" but it doesn't mean I have one running in another window 00:12 < kanzure> :11 < fenn> it's about enabling people to take your idea and extend it 00:12 < kanzure> 00:11 < fenn> it's about enabling people to take your idea and extend it 00:12 < kanzure> (12:12:43 AM) Amy Sun: that'd be great if more than 3 people could agree on which license 00:12 < kanzure> blah 00:13 < fenn> any license 00:13 < kanzure> I told her that 00:13 < fenn> sorry to turn you into a transponder :\ 00:13 < kanzure> (12:13:27 AM) Amy Sun: which license, bryan 00:13 < kanzure> what if I say GPL? 00:13 < gene> hey what chat app are you using kanzure? 00:13 < kanzure> go away 00:13 < kanzure> pidgin 00:14 < fenn> i think GPL is fine for fab lab's mission 00:14 < fenn> i dont understand MIT's insistence on non-commercial-use licenses for everything 00:15 < kanzure> (12:14:53 AM) Amy Sun: not all people, and it turns out there are open * people that are vehemently against some part of the GPL 00:15 < kanzure> (12:15:08 AM) Amy Sun: I can't tell you what, i just know they flooded my inbox and have all kinds of chats with each other about it 00:15 < fenn> you can't please all of the people all of the time 00:15 < kanzure> right 00:15 < kanzure> (12:15:35 AM) Amy Sun: no, i'm letting any maker chose their own thing 00:15 < kanzure> (12:15:48 AM) Amy Sun: that's what's in our charter, if you come in a lab we don't inflict anything on you 00:16 < kanzure> (12:16:04 AM) Amy Sun: if we fund your project, we give up the right to inflict anything on you 00:16 < fenn> ok whatever, i'm talking about hired programmers that are writing fablab software 00:16 < fenn> is that different? 00:17 < fenn> stuff like cad.py 00:17 < fenn> or fablib 00:17 < kanzure> (12:17:32 AM) Amy Sun: we don't have anything that we're releasing that's code only 00:17 < kanzure> (12:17:40 AM) Amy Sun: we = larger fab projects 00:18 < kanzure> (12:18:03 AM) Amy Sun: everything i know of, like cad.py or whatever, has been licensed however the author(s) wanted 00:21 < fenn> i want to force (yes force) anyone who creates a derivative of my mechanical designs to publish their code and/or cad files, but it's not possible in the current US legal system AFAIK 00:22 < fenn> i don't see why a circuit board should qualify but a laser cut piece of acrylic does not 00:23 < fenn> I want standard licenses for hardware designs just like in software 00:23 < fenn> hmm i worded that wrong , i dont care if someone makes things for personal use without redistributing their code, it's when they are redistributing the physical objects themselves that they have to redistribute the code 00:23 < kanzure> fenn, why do they have to care about licenses? 00:24 < kanzure> I mean, ultimately? 00:24 < fenn> they == MIT and friends? 00:24 < kanzure> why does anyone with a fablab have to care about licenses 00:24 < fenn> because it lets you know what you are allowed to do 00:24 < kanzure> what if they just do it 00:24 < kanzure> and then they build a super laser and kill you if you speak up 00:25 < fenn> then you are at risk for getting sued and have no defense 00:25 < kanzure> sued? they'll just build a machine gun and kill your lawyers 00:25 < fenn> try building a machine gun, i dare you 00:25 < kanzure> well, suppose the design files are out there :) 00:25 < fenn> they are, i almost bought the book 00:25 < gene> I believe there is an open source machine gun 00:25 < gene> no it's no the Ak47 00:25 < fenn> its a smooth bore SMG 00:26 < fenn> fires 22 caliber i believe 00:26 < gene> hmm... why no use a motor to spin the bullet up 00:26 < fenn> anyway, guns are not much use against tanks and cruise missiles 00:27 < fenn> and we dont really want to get into a war over copyrights do we? 00:27 < fenn> i mean really 00:27 < gene> yeah but you could make a [REDACTED] 00:27 < kanzure> well supposedly the only people that would be involved would be those that are really into this 'just give it away' stuff 00:27 < fenn> you dont get any advantage from copyright-free society until you have a whole heck of a lot of people participating 00:29 < fenn> kanzure: not everyone in a fablab will "just give everything away" as we've seen from amy's "non commercial use" license 00:30 < kanzure> (12:30:12 AM) Amy Sun: i'm looking for hundreds of thousands of $ to send people off to do fabulous things in various ways, running a lab in a freaking war zone, and doing a phd... licensing stuff is really really low on my list of thing I care about 00:30 < fenn> fair enough 00:31 < gene> start development on laser force fields 00:31 < gene> or AB domes 00:31 < kanzure> (12:31:34 AM) Amy Sun: spekaing of which, we're funding undergrad proposals to have the mobile lab go to places in the lower 48 and do stuff 00:31 < gene> domes for protection against missiles 00:32 < gene> real easy and cheap to make 00:32 < kanzure> (12:32:19 AM) Amy Sun: technically you'll have to find an mit undergrad collaborator 'cause most of tmoney will have "mit ugrad involvemnt" strings 00:33 < gene> wait, Amy's from Mit? 00:33 < kanzure> yes 00:33 < kanzure> all fablab people are 00:34 < kanzure> heh: "come down here to austin so that we can rip off your epilog laser cutter" 00:34 < kanzure> (12:34:17 AM) Amy Sun: oops did i fail to mention that we'll put priority on proposals that involve some audience/community and basically make it necessary for the lab to go to them instead of you to the lab 00:35 < fenn> i dont think mobile fablab can really help us, beyond showing how things should be done 00:35 < fenn> limited time access to tools.. i can buy that locally from a job shop 00:36 < fenn> i would have a backlog of jobs for a laser cutter but I DONT HAVE THE SOFTWARE 00:37 < fenn> specifically a timing pulley outline script 00:37 < kanzure> http://scripts.mit.edu/~emu/fab/?p=1152 00:38 < kanzure> http://scripts.mit.edu/~emu/fab/?p=1198 00:39 < fenn> now that is cool 00:39 < fenn> progress towards a self replicating fab (well, replicating from cheap commodities at least) 00:40 < gene> fabs that can build fabs that can build fabs 00:40 < gene> sweet 00:40 < fenn> i made some chip programmers for the robotics club and they were the single most useful project there 00:40 < kanzure> they didn't have burners/flashers? 00:41 < fenn> i guess that says more about how sucky the club was than anything :P 00:41 < fenn> the commercial burners didnt work right 00:41 < fenn> there were several models to choose from too 00:41 < kanzure> (12:41:21 AM) Amy Sun: feel free to come to me with mostly-fully-baked ideas 00:41 < kanzure> (12:41:39 AM) Amy Sun: if we can't help directly, we mightbe able to point you to grant sources 00:42 < gene> chip burners? 00:42 < gene> burn wires into the chips? 00:42 < kanzure> no, microcontroller programmers 00:42 < kanzure> you have to send the program to it 00:42 < gene> it makes the program permanent correct? 00:42 < kanzure> "permanent" 00:43 < fenn> plz add http://www.ladyada.net/make/usbtinyisp/ to the DIY electronics bench 00:43 < gene> runs faster that way I hear 00:46 < fenn> gene you're thinking ASIC vs FPGA which is a totally different issue 00:47 < fenn> microcontrollers that use flash for program instructions are rate limited by the time to load data from the flash memory (compared to an equivalent ram-based processor) 00:47 < gene> ok 00:47 < gene> corrected 00:48 < fenn> what does she mean 'come to me with ideas'? 00:49 < gene> build an AB dome! 00:50 < gene> let me pull the paper from arxiv 00:50 < fenn> the electron gas thing? 00:51 < gene> no, but by the same guy 00:51 < gene> http://arxiv.org/ftp/arxiv/papers/0802/0802.1871.pdf 00:52 < fenn> oh yes i remember this 00:52 < fenn> ball bearings right 00:52 < gene> this might work better for protecting the fab lab 00:52 < gene> http://arxiv.org/ftp/arxiv/papers/0802/0802.0315.pdf 00:53 < gene> this would work better for protecting the city around the fablab 00:53 < fenn> different paper, same idea 00:53 < fenn> i was reading something about defense from nuclear ICBM's 00:53 < gene> very different idea 00:54 < fenn> using an inflatable dome with ball bearings attached 00:54 < gene> same idea as last paper 00:54 < gene> well on the the first paper you've got weird net things 00:54 < gene> not inflatable 00:54 < gene> or is it? 00:54 < fenn> he doesnt say anything about nuclear weapons though 00:55 < gene> same basic principle 00:55 < gene> I love to see one of these IRL 00:56 < fenn> 1) get some tefzel film 00:56 < fenn> 2) inflate 00:56 < fenn> did i miss anything? 00:57 < gene> I don't think so 00:57 < gene> that's the basic Idea 00:58 < gene> or something like that 00:58 -!- xp_prg [n=xp_prg3@c-24-130-14-113.hsd1.ca.comcast.net] has quit ["This computer has gone to sleep"] 01:00 < fenn> huh? fablab.af projects is password protected? 01:01 < fenn> http://scripts.mit.edu/~emu/fab/?page_id=868 01:05 < fenn> heh "undo send" for gmail 01:05 < fenn> now THAT's innovation! 01:06 < fenn> now we just need an undo for CNC 01:07 < fenn> and trailer parks 01:09 < gene> undo CNC is what some reprap people are trying to do 01:11 < fenn> sweet, the new pythonocc script caches swig operations 01:16 < kanzure> fenn: I sent an email about how to implement that to the mailing list 01:16 < kanzure> so yeah. 01:17 < gene> hmmmm... it's early in afghanistan 01:23 < fenn> now the build is dying on g++ BRepBlend_wrap.cc and i cant seem to get an error message out of g++ 01:23 < fenn> it just dies silently 01:24 < fenn> oh heh, no space left on device 01:25 < fenn> i guess i should buy a hard drive now that i have some money 01:27 < fenn> oh sure now it gives me the error 01:37 < kanzure> heh. I've found a good use for all of those finger prints on scotch tape. 01:37 < kanzure> I wonder how wide these lines are. 01:38 < fenn> now you just need to genetically engineer fluidic fingerprints 01:38 < fenn> ...or something 01:41 < kanzure> I'm not sure if CD patterning works. 01:42 < kanzure> I mean, with the 0.2 micron microchannels 01:42 < kanzure> guess I'll have to bring in this piece of tape+sharpie+CD thingy to the lab's scope 01:49 < kanzure> http://hackaday.com/2005/05/01/making-new-fingerprints/ 01:50 < kanzure> oh, an original 01:50 < kanzure> "The goal is to get an exact image of the fingerprint, for further use as mold, out of which the dummy is made. The easiest way is to print the image on a transparency slide (the ones normally used for an overhead projector) with a laser printer. The toner forms a relief, which is later used similar to letter press printing. Wood glue is suitable for producing the dummy (Figure 7)" 01:50 < kanzure> http://www.ccc.de/biometrie/fingerabdruck_kopieren.xml?language=en 01:52 < kanzure> so you're printing it out anyway 01:55 < gene> oh saw that 01:55 < gene> thinking of making me some ALL YOUR BASE ARE BELONG TO US PRINTS just for the lulz 02:00 < gene> 0.2 micron eh? 02:01 < gene> hmmm.... I'd like to see how small one could make a fluidic amplifier with channels that size.... 02:01 < gene> 0.2 micron is about the size of old transistors on an old IC 02:43 -!- faceface_ [n=dbolser@bioinformatics.org] has quit [Remote closed the connection] 02:44 -!- faceface_ [n=dbolser@bioinformatics.org] has joined #hplusroadmap 02:58 -!- xp_prg [n=xp_prg3@c-24-130-14-113.hsd1.ca.comcast.net] has joined #hplusroadmap 03:04 -!- gene [n=chatzill@pool-71-164-238-185.dllstx.fios.verizon.net] has quit [Read error: 113 (No route to host)] 04:35 -!- ybit [n=heath@unaffiliated/ybit] has quit [Remote closed the connection] 04:36 -!- ybit [n=heath@unaffiliated/ybit] has joined #hplusroadmap 06:25 -!- elias` [n=me@resnet-nat-049.ucs.ed.ac.uk] has joined #hplusroadmap 06:44 -!- jm [n=jm@p57B9EED0.dip.t-dialin.net] has joined #hplusroadmap 09:16 < kanzure> "the google founder's wife started 23andme, Esther is the venture capitalist who invested in them + she is behind space commercialization efforts/some of Diamandis projects" 09:17 < kanzure> fuuuck 09:19 -!- nsh [n=nsh@host217-43-230-27.range217-43.btcentralplus.com] has joined #hplusroadmap 11:18 -!- gene [n=chatzill@pool-71-164-238-185.dllstx.fios.verizon.net] has joined #hplusroadmap 11:37 < bkero> Yea 11:37 < bkero> You didn't know that? 13:58 -!- tarbo2_ [n=me@unaffiliated/tarbo] has quit [No route to host] 15:41 -!- tarbo2 [n=me@unaffiliated/tarbo] has joined #hplusroadmap 15:53 -!- elias` [n=me@unaffiliated/elias/x-342423] has quit ["leaving"] 16:04 -!- elias` [n=me@resnet-nat-049.ucs.ed.ac.uk] has joined #hplusroadmap 16:11 -!- kanzure_ [n=bryan@user-0vvd95g.cable.mindspring.com] has joined #hplusroadmap 16:12 < kanzure_> Hello world. 16:12 < kanzure_> Geir Helleloid suggests looking into 'convergence accelerators' but otherwise keeps away from partial differential equations. 16:14 < gene> hey kanzure figure out what this means: 16:14 < gene> http://www.whatsinthebox.nl/anti.jpg 16:14 < gene> part of an ARG 16:15 < kanzure_> gah, a triple integral? 16:15 < kanzure_> do I have to? 16:15 < gene> is it really a triple integral? 16:15 < gene> from -n to n? 16:15 < gene> or is it technobabble? 16:15 < kanzure_> yes, there is such thing as a triple integral if that's what you ask 16:16 < gene> the ABS things and -n to n freaked me out though 16:16 < gene> http://www.youtube.com/watch?v=IU_reTt7Hj4&eurl=http%3A%2F%2Fgadgets.boingboing.net%2F2009%2F03%2F20%2Fshort-film-whats-in.html&feature=player_embedded 16:16 < gene> related to this 16:17 < gene> www.whatsinthebox.nl 16:19 < gene> all links are somehow related 16:20 < gene> it could be an ARG 16:24 -!- gene_ [n=chatzill@pool-71-164-238-185.dllstx.fios.verizon.net] has joined #hplusroadmap 16:27 -!- kanzure_ [n=bryan@user-0vvd95g.cable.mindspring.com] has quit [Read error: 54 (Connection reset by peer)] 16:41 -!- gene [n=chatzill@pool-71-164-238-185.dllstx.fios.verizon.net] has quit [Read error: 110 (Connection timed out)] 17:03 -!- wrldpc [n=worldpea@pool-173-48-214-204.bstnma.fios.verizon.net] has quit [] 17:07 < fenn> interesting way to make a TV display http://en.wikipedia.org/wiki/Nipkow_disk 17:07 < fenn> perhaps a good use for photochemical milling? 17:08 < gene_> hmmmmm.... 17:08 < gene_> make a nipkow disk with a nipkow disk? 17:12 < fenn> not enough resolution 18:04 < bkero> http://socghop.appspot.com/org/show/google/gsoc2009/opencog 18:42 -!- kanzure_ [n=bryan@user-0vvd95g.cable.mindspring.com] has joined #hplusroadmap 18:44 -!- PeerInfinity [n=someone@216.36.180.162] has joined #hplusroadmap 18:45 < kanzure_> Any help on gnome themes? I'm trying to get the taskbar to work like it does on my KDE installations, but the font isn't easily configurable via gconftools-2 or the other obvious configuration panels. 19:23 < kanzure_> heh. watching some television. one of the commercials was for a vehicle, and they were demonstrating musical notes being played by traveling down a road with bumps at specific intervals 19:23 < kanzure_> I guess that says more about their crappy suspension than anything else? 19:29 < gene_> hahahahaha 19:30 < gene_> THEIR MIND CONTROL BEAMS CLEAR DO NOT WORK ON US, AS WE STILL RETAIN LOGIC WHILST WATCHING TV 19:34 < kanzure_> but still, that does sound like a fun hack to do. i.e., making different sounds based off of gratings but tuned to different types of tires or crappy cars? 19:34 < kanzure_> "warning: your car sucks" 19:41 < bkero> Until the car rattles apart 19:50 < fenn> i wish les' cat had a RFID tag 19:51 < fenn> there was a strip of highway in new mexico (?) that played a song as you drove on it, but eventually the neighbors went crazy and got it removed 19:53 < kanzure_> how hard is potassium hydroxide (KOH) to obtain? 19:54 -!- nsh [n=nsh@host217-43-230-27.range217-43.btcentralplus.com] has quit [] 19:56 < kanzure_> huh, nevermind 19:56 < kanzure_> I'm reading a paper on carbon nanotube actuators 19:57 < kanzure_> in electrolyte solutions. one of the solutions that they worked with was just salt. 19:57 < kanzure_> and then a sheet (3 mm x 20 mm x 20 to 50 microns thick) of carbon nanotube paper (obtained via vacuum filtration of an item bought from some random CNT provider company) 19:58 < kanzure_> they apparently worked with some scotch tape on that step 19:58 < kanzure_> anywho, when you run a dc potential of about ~1 volt, "a deflection of about a centimeter was observed" 19:59 < gene_> potassium hydroxide 19:59 < gene_> hmmm... 19:59 < gene_> it's easy to obtain in nature, but IRL there are some issues 19:59 < kanzure_> "when a square wave potential was applied, oscillation was visually observed up to at least 15 Hz as the actuator pushed the electrolyte back and forth" 19:59 < kanzure_> it's ok, salt will do fine 19:59 < kanzure_> screw the KOH 19:59 < gene_> 15 HZ wow! 20:00 < kanzure_> "up to at least" :) 20:00 < kanzure_> how is that "up to" 20:00 < kanzure_> if they mean to say "at least" 20:00 < kanzure_> hrm 20:01 < kanzure_> that's with graphite nanotubes, btw. which sounds promising to me, except that most nanotube synthesis formulas that I remember reading are hideously complex in the sense that they require gas chambers and gas chambers tend to explode if you're an idiot 20:11 -!- wrldpc [n=worldpea@c-98-217-197-162.hsd1.ma.comcast.net] has joined #hplusroadmap 20:17 < kanzure_> Jonah Lehrer, "The Brain, Revealed: With Custom Built Robots and Assembly-Line 20:17 < kanzure_> Efficiency, Scientists at the Allen Brain Institute Are Creating an Atlas of the Human Mind, 20:17 < kanzure_> Mapping Every Gene and Neuron in Our Most Complex Organ," Wired Magazine, 20:17 < kanzure_> Vol. 11, No. 4, pp. 88-95,118 (April 2009). 20:18 < kanzure_> http://heybryan.org/books/papers/Giant-Stroke,%20Superelastic%20Carbon%20Nanotube%20Aerogel%20Muscles%20-%202009%20-%20Baughman.pdf 20:18 < kanzure_> http://heybryan.org/books/papers/Carbon%20Nanotube%20Actuators%20-%201999.pdf 20:31 -!- samrose [n=samrose@oh-69-69-33-40.sta.embarqhsd.net] has joined #hplusroadmap 20:33 -!- jm|earth [n=jm@87.185.217.174] has joined #hplusroadmap 20:51 -!- jm [n=jm@p57B9EED0.dip.t-dialin.net] has quit [Read error: 110 (Connection timed out)] 20:51 < kanzure_> someone with too much money: "rapid prototyping of 3D structures from multiwalled carbon nanotube forests by selective laser sintering" 20:56 < fenn> why is that too much money? sounds like a good idea to me 20:59 -!- wrldpc_ [n=worldpea@c-98-217-197-162.hsd1.ma.comcast.net] has joined #hplusroadmap 21:00 < kanzure_> I guess I'm just seeing a lot of buzzword papers 21:00 < kanzure_> people like to jump on the CNT bandwagon 21:00 < fenn> CNT's are pretty amazing 21:01 < kanzure_> back in 2007 I knew more about CNTs than I do now 21:01 < kanzure_> do you remember the list of different manufacturing processes? 21:01 < fenn> i wouldnt call what they did "rapid prototyping" or "selective laser sintering" 21:01 < kanzure_> all I'm seeing now is chemical vapor deposition processes, but I'm sure there's more 21:02 < fenn> there used to be some soot-purification methods but i guess they're too expensive and yield the same result 21:02 < fenn> lots of ways to make soot 21:07 -!- wrldpc [n=worldpea@c-98-217-197-162.hsd1.ma.comcast.net] has quit [Read error: 110 (Connection timed out)] 21:08 < kanzure_> oh, there was one way that I remember reading about using STMs to manufacture single CNTs between the tip and the surface 21:08 < kanzure_> but that was for making a single nanotube at a time. 21:08 < kanzure_> I guess if you have an array of tips and you run a current through all of them at once you can do it in parallel 21:08 < kanzure_> but you'd really have to have a lot of tips :/ 21:09 -!- wrldpc_ [n=worldpea@c-98-217-197-162.hsd1.ma.comcast.net] has quit [] 21:09 < kanzure_> there was another recent paper that I read where someone (probably Kuhp) assembled nanopillars by a monolayer array of somewhat larger nanospheres 21:09 < kanzure_> so in between the nanospheres were the areas that the pillars would emerge or be layered (etc.) 21:10 < kanzure_> however, I don't think this is all electrically active since you'd need a separate way of addressing all of them to turn them into a giant parallel STM tip surface thingy for the CNT synthesis method 21:18 < fenn> what if you had a nanotube forest instead of one tip 21:19 < fenn> or does the tip have to be a certain material? 21:24 < fenn> February 8, 2005 - Lamina Ceramics today announced it has developed an ultra-high lumen LED white light engine 14 times brighter than any previously demonstrated white light LED array. The 28,000 lumen solid-state device is 5 inches square and is powered by 1,400 watts. 21:24 < fenn> must be water cooled 22:04 < gene_> what's a light engine? 22:04 < gene_> heck if they make LED arrays that bright I want em in something that can pump a laser 22:06 -!- ybit [n=heath@unaffiliated/ybit] has quit [Remote closed the connection] 22:12 < fenn> just use a diode laser 22:14 < gene_> diode laser? 22:15 < fenn> that's right 22:16 < gene_> well you see lockheed martin made a super high power laser using a LED array pumped block of YAG 22:18 < fenn> sweet http://en.wikipedia.org/wiki/File:Laser_diode_array.jpg 22:18 < gene_> that's not it 22:19 < fenn> i don't care 22:19 < fenn> YAG is YAG 22:19 < fenn> it's either arc pumped or diode pumped 22:20 < fenn> they use HID lamps right? 22:20 < fenn> for some reason you need RF current 22:20 < gene_> huh? 22:21 -!- ybit [n=heath@unaffiliated/ybit] has joined #hplusroadmap 22:22 < fenn> i will ask next time i talk to the laser guy 22:23 < fenn> RF Excited Krypton Arc Lamps for Pumping Nd: YAG Lasers 22:23 < fenn> the answers are within your reach 22:23 < gene_> flashlamp 22:24 < fenn> ah here we go 22:24 < fenn> The baseline assumption is that an electrodeless lamp should exhibit substantially improved lifetime and reliability over a dc arc lamp 22:24 < fenn> Radio frequency energy is coupled into the annular lamp from an induction coil 22:25 < gene_> cool 22:25 < fenn> that was from 1974 22:25 < fenn> so it would make sense that an old laser cutter would use that technology 22:26 < gene_> heh ruby lasers are cool 22:47 -!- tarbo2 [n=me@unaffiliated/tarbo] has quit [Read error: 104 (Connection reset by peer)] 22:54 < kanzure_> whee, I like how I get no support from ##gnome 22:54 < kanzure_> (it's probably not the official channel, but still) 22:55 < fenn> irc is useless for anything moderately popular 23:04 -!- tarbo2 [n=me@unaffiliated/tarbo] has joined #hplusroadmap 23:22 < kanzure_> it's just very idle tonight 23:23 -!- jm|earth [n=jm@87.185.217.174] has quit [Read error: 148 (No route to host)] 23:29 < fenn> i'm feeling the same way 23:29 < fenn> dammit why don't i have a fab lab yet 23:32 < gene_> hmmm... I wonder if I could get away with electroetching in my dorm room.... 23:32 < gene_> kanzure could you find out if sharpie ink is nonconductive? 23:41 < kanzure_> drat, I don't have my ohm meter with me 23:41 < gene_> I need to find mine so I can carry it around in my back pack 23:41 < kanzure_> hm. carbon arc plasma via sucrose + 30 volts + 20 amps over a 0.5 mm gap between two copper electrodes. 23:41 < kanzure_> (to produce CNTs) 23:42 < kanzure_> (acqueous sucrose) 23:42 < gene_> efficiency? 23:43 < kanzure_> 20% purity yielding 7 mg/min when the medium is salt instead of sucrose 23:43 < kanzure_> that doesn't really say much on efficiency though 23:43 < kanzure_> what is your measure/definition of efficiency in this situation? 23:43 < gene_> sweet 23:43 < gene_> mass in vs mass nanotubes out 23:43 < gene_> IE how much crap isn't nanotubes 23:43 < kanzure_> fenn: I'm still surprised that the osh bank stuff got into wired 23:44 < kanzure_> the urge to just bullshit my way on to wired.com is very strong 23:44 < kanzure_> but it's kind of pointless without having substantial that actaully works 23:44 < kanzure_> *actually 23:44 < kanzure_> gene_: a lot of the crap isn't going to be nanotubes. 23:44 < kanzure_> they sometimes call these things "carbon onions" 23:44 < gene_> is 20% of the stuff that's with the nanotubes nanotubes? 23:45 < fenn> 20% isnt that good 23:45 < kanzure_> "we found that a 90 degree angle between the two electrodes produces the highest yield" 23:45 < fenn> really, that's weird 23:45 < gene_> very odd 23:45 < kanzure_> "The highest yield and the best quality were obtained when a mixture of ferrocene–nickelocene was used as catalyst and xylene as carbon source." 23:46 < fenn> maybe there's some kind of vortex that's created 23:46 < fenn> like a z-pinch electrode 23:46 < kanzure_> plasma vortex dynamics! 23:46 < kanzure_> quick, write a draft and submit it to arxiv! 23:46 < fenn> maybe we'll make it to wired 23:46 < gene_> plasma vortex amplifier? 23:46 < gene_> osh bank? 23:46 < kanzure_> I wouldn't bother asking about the osh bank 23:46 < fenn> nickelocene sounds dangerous 23:46 < kanzure_> why, because of the -cene ? 23:46 < gene_> it is 23:47 < fenn> dunno, reminds me of nickel carbonyl 23:48 < gene_> You know many organic chemists tend to die of horrible nasty cancers 23:48 < gene_> I think they are one and the same fenn 23:48 < kanzure_> another way that they do the arc-discharge-in-water method for CNT synthesis is by using two graphite electrodes 23:48 < kanzure_> so the carbon is supplied by the graphite electrodes 23:48 < kanzure_> it's too bad that I'm not as hip on my electronics as I should be 23:48 < kanzure_> how am I going to come up with 30 volts and 20 amps in a circuit? 23:49 < gene_> oops they aren't fenn my bad 23:49 < gene_> http://en.wikipedia.org/wiki/Nickelocene 23:49 < gene_> cool molecule 23:50 < fenn> well at least it doesn't have carbon monoxide groups stuck to it 23:51 < kanzure_> "Carbon onions with hydrophilic characteristics were synthesized through irradiating carbon black suspension using millisecond pulsed laser at room temperature. Laser energy absorption resulted in the structure transformation of carbon black and the formation of hydrophilic groups on the surface of carbon onion. Carbon onions with hollow cores and the incomplete graphitic shells were produced from the starting materials under high 23:52 -!- PeerInfinity [n=someone@216.36.180.162] has quit [] 23:53 -!- PeerInfinity [n=someone@216.36.180.162] has joined #hplusroadmap 23:54 -!- PeerInfinity [n=someone@216.36.180.162] has quit [Client Quit] 23:59 < fenn> “I may look like a scientist but I’m actually also a ninja”