| --- Day changed Tue Nov 18 2008 | ||
| -!- nsh- is now known as nsh | 00:03 | |
| drazak | hm | 01:59 |
|---|---|---|
| drazak | does one enzyme build the complemenatary strand of dna(polymerase?) or do 4? | 01:59 |
| kanzure | What do you mean, one per nucleotide? No. | 02:01 |
| kanzure | There's a few enzymes involved in making the complementary strand of DNA, one being polymerase, yes. | 02:02 |
| kanzure | There's also a few others involved at the replication fork, for instance. | 02:02 |
| kanzure | Okazake fragments are something else to consider. | 02:02 |
| kanzure | For PCR, you just need DNA polymerase. | 02:03 |
| drazak | not talking about for pcr | 02:03 |
| drazak | I'm talking about for sequencing | 02:03 |
| drazak | hm | 02:03 |
| drazak | PPi as a byproduct | 02:04 |
| drazak | need to find some sort of flourescent/lumonescent dye that activated with PPi, and grabs it up before anythning else | 02:04 |
| kanzure_ | http://video.google.com/videoplay?docid=-8640306924766056110 "Star Trek: New Voyages". I'd laugh if it wasn't so sad. | 02:15 |
| ferrouswheel | drazak: "DNA polymerase epsilon (Pol epsilon ) from Saccharomyces cerevisiae consists of four subunits (Pol2, Dpb2, Dpb3, and Dpb4) and is essential for chromosomal DNA replication." | 02:34 |
| ferrouswheel | is this what you were asking about? | 02:34 |
| drazak | to some degree | 02:34 |
| drazak | 4 subunits huh | 02:35 |
| ferrouswheel | not sure if all polymerase has a 4 subunit quaternary structure... but at least for S. cerevisiae it does | 02:35 |
| kanzure | If you're interested in the subunit structure of polymerase, I have about 20 PDFs on that on the server: | 02:37 |
| kanzure | http://heybryan.org/~bbishop/docs/ellingtonia/polymerase/ | 02:37 |
| drazak | hm | 02:42 |
| drazak | well, I wonder how different the energies are released by the addition of different subunits | 02:42 |
| kanzure | Huh? | 02:43 |
| kanzure | Subunits are parts of the structure of polymerase. So what energy-releasal process are you talking about? | 02:43 |
| -!- kanzure changed the topic of #hplusroadmap to: http://groups.google.com/group/openmanufacturing http://heybryan.org/ | 02:44 | |
| drazak | oh, not that one | 02:47 |
| drazak | when making a dna strand | 02:47 |
| drazak | the breaking off of PPi from ATP/CTP/GTP/TTP | 02:47 |
| drazak | I wonder if it's different between them | 02:47 |
| drazak | I mean, they're ester linked diphosphate groups... butttt | 02:48 |
| drazak | whm | 02:48 |
| kanzure | For notes on the structure of DNA, I have a 20 MB HTML file over in http://heybryan.org/school/Physiology/ | 02:49 |
| drazak | I'm just thinking alloud here | 02:50 |
| kanzure_ | http://heybryan.org/school/Physiology/03-29-07,%20Digestive%20system.html <-- Not DNA, but still. Impressive, no? | 02:51 |
| kanzure_ | http://heybryan.org/school/Biology/notes/01-24-07,%20Deoxyribonucleic%20acid.html | 02:52 |
| kanzure_ | Ah, there we go. | 02:52 |
| kanzure | Scroll down for the goods. | 02:52 |
| drazak | I dunno if what I'm thinking off would be there | 02:53 |
| kanzure | Worth a glance. | 02:53 |
| kanzure_ | Ugh. This was 2005? http://heybryan.org/school/Biology/notes/11-11-05,%20The%20Cell%20Cycle.html | 02:56 |
| kanzure_ | I feel old. | 02:56 |
| drazak | kanzure_: nothing that I need | 02:58 |
| drazak | ah well | 02:58 |
| drazak | I'll research it tomorrow | 02:58 |
| drazak | write what I'm looking for in my notes | 02:59 |
| gene | you there kanzure? | 04:44 |
| gene | can you hear me now Kanzure? | 04:58 |
| -!- fenn_ is now known as fenn | 05:50 | |
| fenn | gosh does this guy really thing going back to the moon will require training kindergartners in science and math? | 06:04 |
| fenn | haha they're talking about hardware based unit testing in emc (moving motors around and pressing switches n stuff) | 06:24 |
| UtopiahGHML | http://markorodriguez.com/Research.html | 08:19 |
| UtopiahGHML | Synthetic Cognition through Petascale Models of the Primate Visual | 08:19 |
| UtopiahGHML | Cortex, Neno/Fhat: A Semantic Network Programming Language and Virtual Machine Architecture, CDMS: Collective Decision Making Systems, ... | 08:20 |
| * UtopiahGHML loves today Dilbert's cartoon :> | 09:56 | |
| drazak | kanzure_: do you know if there are enzymes that add only one kind of dNTPs? | 12:24 |
| kanzure | drazak: That's what those papers are about. | 12:37 |
| kanzure | Specifically, not really. There are some polymerases that you can mutate a bit, but it's hard to do selection experiments on a "retarded polymerase". | 12:38 |
| kanzure | from Michel - | 12:41 |
| kanzure | http://thingiverse.com/ | 12:41 |
| kanzure | Stupid. Click the 'upload' button .. they allow any file type. blah.. | 12:42 |
| nsh | ARGHGHGHGHGH: http://www.nature.com/news/2008/081117/full/news.2008.1235.html | 12:47 |
| nsh | "The search for genome 'dark matter' moves closer" | 12:48 |
| nsh | *head against table, repeatedly* | 12:48 |
| kanzure | nsh: Have you ever published? | 13:06 |
| kanzure | nsh: The reason I ask is because I'd like you to go over a partial draft that I'm submitting to biomedcentral, the BMS Systems Biology journal. | 13:07 |
| * nsh hasn't, but will read through anyway if you'd like | 13:07 | |
| kanzure | http://heybryan.org/mediawiki/index.php/Towards_automatic_generation_of_linear_genetic_regulatory_networks_via_biobricks | 13:08 |
| kanzure | Apparently a two-page technical "Towards blah blah blah" paper is acceptable and quite commonly appears in that journal. | 13:08 |
| kanzure | second page can very well just be screenshots of cool shit :) | 13:09 |
| * kanzure goes down to eat. | 13:09 | |
| nsh | i'm not sure you can use the phrase "pathetic web interfaces" in a journal | 13:13 |
| nsh | but you should try anyway | 13:14 |
| kanzure | Heh. | 13:25 |
| kanzure | Rawwrrr | 13:27 |
| kanzure | I hate these people. | 13:27 |
| kanzure | New inbox email: "[agi] My prospective plan to neutralize AGI and other dangerous technologies..." | 13:28 |
| UtopiahGHML | ?? | 13:28 |
| kanzure | that's like saying "my plan to neutralize bacteria" | 13:28 |
| kanzure | Yeah, good luck there buddy! | 13:28 |
| kanzure | "my plan to neutralize electrons' | 13:28 |
| UtopiahGHML | Id like to read that actually, Dilbert's cartoon today was funny but I think I can laugh again | 13:29 |
| kanzure | Wrong, wrong approach. | 13:29 |
| kanzure | Uhm, it's on the AGI mailing list if you want. | 13:29 |
| UtopiahGHML | pretty bold to post that on the official mailing list of the guys building the tool itself :P | 13:30 |
| * UtopiahGHML reading http://www.mail-archive.com/agi@v2.listbox.com/msg15343.html | 13:31 | |
| UtopiahGHML | this is definitely a former cracker with solid experience, his notions regarding security seem flawless... | 13:33 |
| UtopiahGHML | [I] | 13:33 |
| UtopiahGHML | (that's the Ironical [I] tag for those who wonder) | 13:33 |
| UtopiahGHML | wtf is this a kind of joke or is the guy serious... | 13:35 |
| UtopiahGHML | Im pretty sure the guy will lock himself out of this very website anyway, funny. | 13:38 |
| kanzure | The problem though is that these people tend to be serious about this. | 13:54 |
| kanzure | Not his specific idea in this instance, but the subject of the thread itself plays on a long-deep fear in the AGI community. | 13:54 |
| kanzure | "Oh teh noes, AGI will rule the world wtf are we going to do? I know, I know! Let's have Eliezer Yudkowsky build an AI *first* that is **inherently NOT EVIL*** that will be a world dictator and stop all other AGI/AI projects from emerging!" | 13:55 |
| UtopiahGHML | isn't it why most makes donations? | 13:57 |
| kanzure_- | Back. | 16:34 |
| kanzure_- | http://www.geocaching.com/ "find the money" game. | 17:03 |
| nsh | did i ever mention | 17:18 |
| nsh | that Eliezer is a fucking idiot? | 17:18 |
| nsh | that may not have come up before | 17:18 |
| nsh | so, just putting it out there | 17:18 |
| nsh | oh wow | 17:20 |
| nsh | i feel so much stupider for reading that agi post | 17:20 |
| nsh | thanks :-/ | 17:20 |
| kanzure_- | fenn: http://code.google.com/p/pyglet/source/browse/trunk/experimental/glxgears.py <-- another reason not to use this is the giant gaping "TODO/FIXME" where the meat of the code would actually be .. | 17:41 |
| bkero | lol | 17:41 |
| kanzure_- | http://maven.smith.edu/~orourke/240/gears.py | 17:42 |
| bkero | uh | 17:43 |
| bkero | doesn't exist | 17:43 |
| bkero | Gotta kill it | 17:43 |
| kanzure_- | does for me .. wtf? :) | 17:43 |
| bkero | I hold cwn ctrl+c, and it gives me tracebacks, but that's it | 17:44 |
| kanzure_- | Ah, I see what you mean. | 17:45 |
| kanzure_- | apt-get install python-opengl | 17:45 |
| -!- percent is now known as jihaad | 18:24 | |
| kanzure_- | http://www.daniweb.com/forums/post701317-5.html drop-in compatible with import opengl stuffs? hrm.. | 19:04 |
| kanzure_- | https://svn.zib.de/lenne3d/lib/pyopengl/3.0.0a5/OpenGL/Demo/NeHe/lesson42.py close enough. | 19:06 |
| kanzure_- | All hail NeHe. | 19:07 |
| kanzure_- | http://heybryan.org/shots/2008-11-18_glxgears.py.png <- Now accepts graphsynth output (well, not really. There's an intermediate CSV file.) | 19:52 |
| kanzure_- | http://heybryan.org/~bbishop/docs/repo/gears.py | 19:52 |
| kanzure_- | uh | 19:53 |
| kanzure_- | http://heybryan.org/~bbishop/docs/repo/gears/gears.py | 19:53 |
| kanzure_- | with other stuff in the dir. | 19:54 |
| kanzure_- | git clone git://repo.or.cz/pythoncad.git | 19:56 |
| kanzure_- | looks like I'll be using VTK http://www.nabble.com/CAD.py-td20270104.html | 19:57 |
| kanzure_- | http://www.vtk.org/Wiki/VTK/Writing_VTK_files_using_python | 19:57 |
| kanzure_- | http://cens.ioc.ee/projects/pyvtk/ | 19:58 |
| kanzure_- | http://cens.ioc.ee/cgi-bin/cvsweb/python/pyvtk/examples/example1.py?rev=1.3 <--- not bad. | 19:59 |
| kanzure_- | http://rosettadesigngroup.com/blog/ Macromolecular Modeling Blog, by way of bbb@bioinformatics.org mailing list | 20:06 |
| kanzure_- | gene: Welch 2.224 from 630 to 745 is a viewing of the PBS docu "The Atom Smashers" | 20:07 |
| ybit | http://nextbigfuture.com/2008/11/seaweed-fungus-and-algae-biofuel.html | 20:23 |
| bkero | kanzure_-: You said I needed to write you an email or something to get some algae samples? | 20:24 |
| -!- Irssi: #hplusroadmap: Total of 16 nicks [0 ops, 0 halfops, 0 voices, 16 normal] | 20:25 | |
| bkero | My digestor, growth tubes, and co2 supply are all ready. :) | 20:26 |
| kanzure_- | bkero: I was going to make a trip down to the lab today, so maybe I'll magically remember. | 20:29 |
| bkero | Heh | 20:30 |
| kanzure_- | ybit: Apparently I'm attending a biofuel/algae conference tomorrow. | 20:30 |
| kanzure_- | http://en.wikipedia.org/wiki/List_of_Earth-crossing_asteroids <- So kind of Wikipedia/lazyweb to do our hard work for us. | 20:30 |
| kanzure_- | bkero: How do I go about mailing liquids? | 20:31 |
| kanzure_- | Uh. | 20:31 |
| kanzure_- | Hrm. | 20:31 |
| bkero | Goto the mailing place on campus | 20:32 |
| bkero | They should know the procedure | 20:32 |
| bkero | Or call them | 20:33 |
| kanzure_- | Uusally this requires MTAs, material transfer agreements. | 20:33 |
| kanzure_- | And usually this means that I have to have the professor's signature. | 20:33 |
| bkero | Which both our universities have :) | 20:33 |
| bkero | o | 20:33 |
| kanzure_- | yeah .. | 20:33 |
| bkero | I just have an on-campus job, so I use that to mail anything I need. | 20:33 |
| kanzure_- | so google me up a "guide to transferring biological agents" | 20:33 |
| kanzure_- | so do I of course : | 20:34 |
| kanzure_- | ) | 20:34 |
| kanzure_- | multiple jobs it seems | 20:34 |
| kanzure_- | wtf am I doing here | 20:34 |
| * kanzure_- goes | 20:34 | |
| gene | so kanzure, what do you think largest feature size on a microchip should be | 21:36 |
| gene | could you get away with 4 micrometer feature sizes? | 21:39 |
| kanzure | Why do you need it to fit within the category of micro-chip? | 21:41 |
| gene | would you 4 micrometer be ok if you wanted to make a microchip | 21:46 |
| kanzure | I don't know what you are asking. | 21:47 |
| kanzure | Are you asking about the ontological basis of calling something a microchip? | 21:47 |
| gene | no | 21:47 |
| kanzure | i.e., "if it has a 4 micrometer feature, is it still classified as a microchip?" | 21:48 |
| gene | Ok | 21:48 |
| kanzure | Then what are you asking? | 21:49 |
| gene | I could conceivably make a micropositioner accurate to 4 micrometers | 21:49 |
| kanzure | gene: Remember, the original microprocessor people were drawing circuits in wax with sharp sticks from trees. | 21:50 |
| kanzure | (Actually, with forks or the opposite ends of pens, probably.) | 21:50 |
| gene | and I could conceivably use this micropositioner to do electrochemical etching | 21:51 |
| gene | dag | 21:51 |
| gene | dang | 21:51 |
| gene | did I mention I could conceivably make this micropositioner with legos | 21:53 |
| kanzure | I think you should start by trying to make the original setups that the Intel guys were using in the 50s? | 21:54 |
| drazak | tubes?! | 21:55 |
| gene | no | 21:55 |
| gene | no | 21:55 |
| gene | So anyway | 21:55 |
| gene | what do I need to do to do electrochemical etchingn | 21:55 |
| kanzure | No, not tubes. | 21:56 |
| kanzure | They weren't using micropositioners and were still able to make circuits. | 21:56 |
| kanzure | Pretty small circuits too. | 21:56 |
| kanzure | And without ridiculously expensive masks. | 21:56 |
| fenn | just so you know, VTK is really hard to understand | 21:56 |
| fenn | (supposedly it would be easier if you buy the book) | 21:56 |
| kanzure | I don't know. It will require some searching. | 21:57 |
| kanzure | I might have some information here: | 21:57 |
| kanzure | http://heybryan.org/semiconductor.html | 21:57 |
| kanzure | http://heybryan.org/semiconductors.html (one of those) | 21:57 |
| kanzure | fenn: robogami2007 is pretty neat | 21:57 |
| kanzure | yay psychic powers | 21:57 |
| kanzure | yay budgets.. | 21:57 |
| kanzure_ | http://www.youtube.com/watch?v=fIFA_PiDn7k robogami | 21:58 |
| kanzure | I wonder about grammar rules for origami. | 22:00 |
| fenn | let's see it do a crane | 22:01 |
| kanzure | http://heybryan.org/books/Manufacturing/origami/ <- check the Introducing robotic origami folding paper | 22:04 |
| gene | can't find the intel thing | 22:07 |
| kanzure | ooh. | 22:09 |
| kanzure | fenn: see also the 'Constituting' paper in that dir. | 22:10 |
| kanzure | it has a data struct for origami | 22:10 |
| gene | does anyone know of any cheap, highly accurate linear actuators? | 22:13 |
| gene | don't CD players use linear actuators to move the laser pickup? | 22:14 |
| fenn | define cheap and accurate in quantitative values | 22:39 |
| gene | cheap as in preferably under $20 | 22:41 |
| fenn | in qty 1? | 22:42 |
| fenn | backlash or no backlash | 22:43 |
| gene | what's backlash? | 22:43 |
| fenn | something you need to be aware of if you're using a linear actuator | 22:43 |
| gene | oh yeah | 22:45 |
| gene | no backlash | 22:45 |
| fenn | not gonna happen unless you DIY | 22:46 |
| fenn | http://www.dumpstercnc.com/ | 22:46 |
| fenn | you mind telling me what this is for? i dont like doing engineering in the dark | 22:47 |
| gene | electrochemical machining mill | 22:48 |
| fenn | well, all the standard CNC stuff applies then, so off to CNCzone you go | 22:49 |
| gene | indeed | 22:50 |
| fenn | you forgot to mention the corrosive resistance requirement | 22:50 |
| kanzure_ | http://www.langorigami.com/art/monumental/monumental.php4 monumental origami | 22:50 |
| kanzure_ | webEOS | 22:50 |
| * kanzure_ can't find webEOS | 22:50 | |
| gene | the actuator doesn't need to work in a corrosive environment | 22:50 |
| kanzure_ | hah, second to last image | 22:50 |
| gene | just the toolhead | 22:50 |
| kanzure_ | guy pulling giant sheet of paper | 22:50 |
| kanzure_ | hehe | 22:50 |
| gene | now if we could only make a paper folding machine that folds paper we'd be set | 22:51 |
| fenn | is that an ice skating rink? | 22:52 |
| fenn | oh nm it's just a regular floor | 22:53 |
| gene | fenn | 22:53 |
| fenn | gene | 22:53 |
| gene | I am trying to make a small mill | 22:53 |
| gene | a very small mill | 22:53 |
| fenn | so is 90% of the rest of the geek populace | 22:53 |
| fenn | with varying degrees of seriousness | 22:53 |
| kanzure | Manual folding is a good start.. then a machine. | 22:54 |
| fenn | i dont know where people get the idea that making stuff is cheap and easy even if you dont know what you're doing | 22:54 |
| gene | http://electronics.howstuffworks.com/cd4.htm | 22:55 |
| gene | cd players | 22:55 |
| fenn | good luck | 22:55 |
| fenn | have you ever actually taken apart a cd player? | 22:56 |
| fenn | there's no "sweet delectable linear actuator module" that you can just pluck out | 22:57 |
| gene | well | 22:57 |
| kanzure | fenn: it's annoying, isn't it. | 22:57 |
| fenn | kanzure: i intend to change this | 22:57 |
| gene | it looks like cd players also have some strange stabilizing mechanism | 22:58 |
| fenn | it's to make up for the inadequacies of the cheap rack and pinion drive | 22:58 |
| gene | well they do | 22:58 |
| gene | using magnets | 22:59 |
| fenn | and notice that it moves a tiny lens on a tiny lever arm | 22:59 |
| fenn | 1 micron accuracy over 1mm travel isnt that difficult | 23:00 |
| kanzure | do tell? | 23:00 |
| fenn | of course they calibrate the shit out of them at the factory with expensive equipment | 23:00 |
| gene | well | 23:01 |
| gene | cd's can also self calibrate I believe | 23:01 |
| kanzure | you speak in tongues. | 23:01 |
| kanzure | the intention to change this makes up for inadequacies in evolutionary behavior to jump on magic bullets and bandwagons? | 23:01 |
| kanzure | what? | 23:02 |
| fenn | a cd is basically a giant pseudorandom linear encoder | 23:02 |
| fenn | wrapped in a spiral | 23:02 |
| gene | well | 23:02 |
| gene | I'm not an expert | 23:02 |
| gene | but CD laser pickups have more than one pixel | 23:03 |
| kanzure_ | eric hunting just posted to om about the 'unimat' in germany: http://www.thecooltool.com/produktgruppe.php?language=e&status=20&sh_id=15&ptitel=Unimat+Classic | 23:03 |
| gene | and might be able to track the pixels | 23:04 |
| fenn | ugh | 23:04 |
| fenn | unimat just won't die | 23:04 |
| gene | what? | 23:05 |
| gene | what's so bad about unimat? | 23:05 |
| gene | it's small right? | 23:05 |
| fenn | it's sloppily constructed | 23:05 |
| fenn | it's also a lot smaller than it looks | 23:06 |
| gene | ok | 23:06 |
| gene | you just got me very interested | 23:06 |
| fenn | it's woodworking crap | 23:06 |
| gene | is it a mill? | 23:07 |
| fenn | no | 23:07 |
| gene | can it be? | 23:07 |
| fenn | i'm just going to say no | 23:08 |
| fenn | i like the 'reconfigurable machine tool' idea, but they just haven't done it | 23:09 |
| kanzure | huh, robotorigami got to slashdot. | 23:10 |
| gene | have you heard about kulibin? | 23:11 |
| gene | some russian milling machine that can be reconfigured into anything | 23:11 |
| kanzure_ | http://www.origamiboulder.com/ | 23:11 |
| fenn | i only see stuff about the watch maker | 23:12 |
| gene | huh? | 23:12 |
| fenn | ivan kulibin 1767 | 23:12 |
| gene | no | 23:13 |
| kanzure_ | bioknoppix - for the molecular biologist in you. hm. | 23:15 |
| gene | http://translate.google.com/translate?u=http%3A%2F%2Fwww.mntc.ru%2F&hl=en&ie=UTF-8&sl=ru&tl=en | 23:16 |
| gene | so how do you get sub micron accuracy on a cnc machine? | 23:17 |
| fenn | uh, glass scales i guess | 23:18 |
| fenn | and preloaded ballscrews | 23:18 |
| gene | what are preloaded ball screws? | 23:18 |
| fenn | the balls push on both sides of the screw thread with a certain amount of "preload" force | 23:19 |
| fenn | one way to do this is to use oversize balls | 23:19 |
| fenn | another way is to use two nuts pushing against each other | 23:19 |
| kanzure_ | http:/www.score.cs.tsukuba.ac.jp/webeos .. This is why you go open source. Your server dies and everybody mutters your name to damn it. | 23:22 |
| kanzure | hm | 23:22 |
| kanzure | interesting | 23:22 |
| kanzure | So there's a big thing going on about the whole cutting-off-analog-television broadcasting. | 23:23 |
| kanzure | "We urge you to convert ASAP .. do not wait until you get static." | 23:23 |
| kanzure | because then they can't reach them :) | 23:23 |
| fenn | webeos is some kind of origami thing? | 23:23 |
| kanzure | They don't want to lose viewers. | 23:23 |
| kanzure | <quick link to Paul's link to the 10,000 hours link re: TV> | 23:24 |
| kanzure | yes | 23:24 |
| fenn | yeah yeah 2000 wikipedias a yaear | 23:24 |
| kanzure | AJAX crap, so say the papers | 23:24 |
| kanzure | backend is some stupid mathematica notebook file | 23:24 |
| kanzure | but they have an api for folding and so on | 23:24 |
| kanzure | which now that I think about it is probably kind of obvious | 23:24 |
| kanzure | fold(a,b) where there's an arc splitting sides A and B | 23:25 |
| gene | what if I used air bearings? | 23:25 |
| kanzure | hm, maybe each fold() call adds a new surface to the stack | 23:25 |
| kanzure | this isn't quite the same thing with origami that we were playing around with in blender of course | 23:25 |
| fenn | heh i like their crane animation with the flapping wings: http://www2.score.cs.tsukuba.ac.jp/score-group-homepage/view?set_language=en | 23:25 |
| kanzure | that was 3D object -> mesh it -> to origami diagram | 23:25 |
| fenn | that was papercraft, not origami | 23:26 |
| kanzure | oh right | 23:27 |
| kanzure | tape edges here, or something | 23:27 |
| fenn | yes lots of taping and lots of cutting | 23:27 |
| gene | hey why not make a paper cutting machine out of paper? | 23:29 |
| gene | for printing out papercraft | 23:29 |
| kanzure | gene: just out of curiosity, did you see the news blitz about launching origami planes from space shuttles? | 23:30 |
| gene | yes | 23:30 |
| gene | yes I did | 23:30 |
| fenn | yay space pollution! | 23:30 |
| kanzure | well, in all fairness, it was supposedly towards earth | 23:30 |
| gene | you know I once contemplated making a paper airplane with a jato on it | 23:30 |
| fenn | i wonder, did the astronauts bring them up folded or did they have to fold in space? | 23:30 |
| kanzure | hm. | 23:31 |
| gene | I believe they brought it up folded | 23:31 |
| kanzure | isn't that kind of redundant? | 23:31 |
| fenn | which, the astronauts or the cranes? :) | 23:32 |
| gene | the plane to be launched from space | 23:32 |
| fenn | a paper plane full of paper cranes | 23:33 |
| kanzure | oooh, astronauts lose a bag of tools in space .. I'm amazed this made the news, but glad I guess. (television news) | 23:33 |
| gene | the cool thing is is that it is so light it will withstand reentry | 23:33 |
| kanzure | what's the glide ratio? | 23:33 |
| fenn | how do you lose a bag of tools? arent they tethered on at all times? | 23:33 |
| gene | dunno | 23:33 |
| gene | no | 23:34 |
| gene | AFK | 23:34 |
| kanzure | yeah .. | 23:34 |
| kanzure | gene: glide ratio is just how many feet horizontal per vertical lost. | 23:34 |
| fenn | no mention of what will happen to the bag of tools.. | 23:36 |
| kanzure | hm, so I might as well just make up my own API for origami folding. | 23:39 |
| kanzure | it looks like the SCORE guys were doing what I was doing with supermetal, with specific 'points of interest' on the shapes (or in this case, the 2D surfaces) | 23:39 |
| kanzure | so given a square piece of paper, the four corners are given labels, and then you say fold(A,B) where A and B are opposite corners perhaps | 23:39 |
| kanzure | I guess there's also half-folds, blah | 23:40 |
| fenn | you could fold at any arbitrary location | 23:40 |
| kanzure | but anyway, given a full fold(A,B) where A and B are opposite to each other, plus a crease, | 23:40 |
| kanzure | well | 23:40 |
| kanzure | I think what I'm trying to do is come up with a correlation of what each function adds to the list of possible places to fold at | 23:40 |
| kanzure | but you're right, you could just randomly fold anywhere. | 23:41 |
| kanzure | I'm also wondering about mechanical contraptions made from origami | 23:43 |
| kanzure | hopping frogs are boring. | 23:43 |
| fenn | theo janssen mechanism? | 23:43 |
| * kanzure googles | 23:44 | |
| kanzure | oh | 23:44 |
| kanzure | that too | 23:44 |
| kanzure | hm. this looks like it's straight out of hod's videos. | 23:44 |
| fenn | there was a papercraft version | 23:44 |
| gene | I don't know what the glide ratio is kanzure | 23:46 |
| gene | but I heard it is fairly high | 23:46 |
| kanzure | It would be fun to see what other mechanical motions are possible. | 23:46 |
| gene | I think theo jansen used a GA to optimize that mechanism | 23:47 |
| gene | which explain's its similarity to hod's videos | 23:47 |
| gene | oh | 23:55 |
| gene | the magnets in the CD player might not be for stabilization | 23:55 |
| gene | http://www.physics.udel.edu/~watson/scen103/cd-focusing.html | 23:55 |
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