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| kanzure | drazak: in particular, PCA is where you have 40-nt oligos, and you join them together into longer strands. | 09:37 |
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| kanzure | ref: Single-step assembly of a gene and entire plasmid from large numbers of oligodeoxyribonucleotides | 09:38 |
| kanzure | would anyone be interested in a rubber band ball of DNA ligated together from different organisms? it might be something fun to pass around between diybio people | 10:01 |
| kanzure | http://heybryan.org/books/papers/oligo-errors/ | 10:23 |
| kanzure | http://www.gnu.org/philosophy/javascript-trap.html | 10:50 |
| kanzure | heh, I see what he's getting at | 10:50 |
| kanzure | if you set up a repository of free "javascript patches", you suddenly brake the "web 2.0 AJAX" startup business models sorta | 10:50 |
| kanzure | I looked at 'similar pages' to my home page via google, and found this: http://www.umsl.edu/~fraundorfp/isocore.html The core structure of pre-solar graphite onions | 11:03 |
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| drazak | kanzure: how do you know they're going to form a certain way? | 14:50 |
| kanzure | that what are going to form a certain way? | 15:04 |
| kanzure | the DNA thing? just ligate strands of DNA together. | 15:32 |
| kanzure | hah, scotch tape gives off x-rays when peeled | 15:33 |
| kanzure | http://blogs.america.gov/science/2008/11/03/scotch-tape-makes-x-rays/ | 15:33 |
| kanzure | "physicists from the University of California in Los Angeles (UCLA) discovered that peeling Scotch tape emits bursts of X-rays so plentiful that scientists were able to capture an X-ray image of a human finger." | 15:33 |
| kanzure | hahah | 15:33 |
| fenn | zoinks | 15:34 |
| kanzure | " | 15:34 |
| kanzure | X-rays are only produced when tape is peeled in a vacuum, so there is no danger of radiation exposure when using tape in your office. According to Camara, X-ray emission is not specific to Scotch tape. Other types of adhesive tape, such as Magic tape, also produce X-rays." | 15:35 |
| kanzure | wonder how much of a vacuum | 15:35 |
| kanzure | “Correlation between nanosecond X-ray flashes and stick-slip friction in peeling tape” by Carlos G. Camara, Juan V. Escobar, Jonathan R. Hird and Seth J. Putterman, published in the October 23 issue of Nature. | 15:35 |
| kanzure | http://heybryan.org/books/papers/Correlation%20between%20nanosecond%20X-ray%20flashes%20and%20stick-slip%20friction%20in%20peeling%20tape.pdf | 15:37 |
| kanzure | hm, you could probably put a roll of tape on the same mechanism that rolls magnetic tape in VHS players/recorders | 15:37 |
| drazak | kanzure: yeah, people have known that for awhile | 16:05 |
| drazak | kanzure: some types of tape used to fog films, when you pulled them off in a darkroom they'd leave an image of a human finger | 16:05 |
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| kanzure | huh, so PMMA is a good substrate for LIGA (x-ray lithography) | 16:25 |
| kanzure | s/substrate/photoresist/ | 16:25 |
| kanzure | PMMA = plexiglass | 16:25 |
| kanzure | so just need a vacuum pump capable of something like 10^-2 or 10^-3 mbar, or just 10^-3 torr | 16:39 |
| kanzure | I wonder why it has to be a vacuum. what about just a lead box? | 16:43 |
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| gene | http://www.newscientist.com/article/mg20127001.300-space-storm-alert-90-seconds-from-catastrophe.html?DCMP=OTC-rss&nsref=online-news | 17:35 |
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| gene | http://knowledgerush.com/kr/encyclopedia/Water_integrator/ | 17:57 |
| gene | those soviets | 18:00 |
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| gene | http://www.cs.wayne.edu/~kjz/KPZ/PublicationsOnline/ComKISSV18N8P78/ComKISSV18N8P78.html | 19:21 |
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| kanzure | did anyone see the spam to the virgle list? | 21:52 |
| kanzure | somebody said "piezoelectricity can't be explained, here is a quantum" or something | 21:52 |
| kanzure | http://www.elkadot.com/physical-chemistry/Piezoelectric%20Effect.htm | 21:52 |
| kanzure | from the page: | 21:52 |
| kanzure | " | 21:52 |
| kanzure | In actual orthodox explanation, it is not clear what does it mean a charge separation in a crystal, and where this charge is generated. | 21:52 |
| kanzure | " | 21:52 |
| kanzure | I conclude that this individual might be a moron. | 21:52 |
| kanzure | is there a chart anywhere on the net that tries to associate different levels of vacuum with different experiences from day-to-day life? | 22:03 |
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| gene | kanzure, holographic brain theory, what do you make of it? | 22:29 |
| kanzure | load of crap | 22:29 |
| kanzure | avoid avoid avoid | 22:29 |
| gene | that's what I thought | 22:32 |
| gene | you saw the artificial neuron | 22:32 |
| kanzure | what? | 22:32 |
| kanzure | there are many simulations of neurons | 22:33 |
| gene | the chemical version | 22:33 |
| kanzure | is it a chemical Hodgkin Huxley calculation? | 22:33 |
| kanzure | or a chemical perceptron? | 22:33 |
| gene | http://www.cs.wayne.edu/~kjz/KPZ/PublicationsOnline/ComKISSV18N8P78/ComKISSV18N8P78.html | 22:35 |
| kanzure | wait, is this like the Poop Machine? | 22:36 |
| gene | uh I don't know | 22:39 |
| gene | didn't really read in detail | 22:39 |
| gene | found it on an internet search for something else | 23:07 |
| gene | thought you'd be interested | 23:07 |
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| kanzure | the physics lab class was actually useful tonight | 23:15 |
| kanzure | I got a chance to play around with imagej | 23:15 |
| kanzure | it's actually more usable than the gimp | 23:15 |
| gene | what'd you do? | 23:16 |
| gene | back in my day we never used photo editing applications in lab experiments | 23:19 |
| kanzure | yeah, it was kind of stupid | 23:20 |
| kanzure | we were imaging the angular motion of a puck on a 2D surface | 23:20 |
| kanzure | kinda boring too.. | 23:20 |
| kanzure | how much am I paying for this again? | 23:20 |
| gene | and what did you track it with a camera? | 23:20 |
| kanzure | yes | 23:20 |
| gene | was there a marker on the puck? | 23:21 |
| kanzure | basically the TA wants us to assume a pixel is a coordinate | 23:21 |
| kanzure | no | 23:21 |
| kanzure | it was just monochrome. | 23:21 |
| kanzure | filtered into monochrome, I mean | 23:21 |
| gene | damn | 23:21 |
| kanzure | yeah, sucks. | 23:21 |
| gene | in real time? | 23:21 |
| kanzure | meh, it had a bad frame rate | 23:21 |
| kanzure | and bad exposure time | 23:21 |
| gene | holy shit that's a lot more awesome than anything I did in physics | 23:21 |
| kanzure | in fact, it was bad all over | 23:21 |
| kanzure | what? | 23:21 |
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| gene | did you have to write code for it? | 23:21 |
| kanzure | no | 23:21 |
| gene | dang | 23:22 |
| kanzure | imagej is an open source image processing application | 23:22 |
| kanzure | go get it. | 23:22 |
| gene | actually that's a pretty good assumption | 23:22 |
| gene | on a 3d surface as in an airhockey table? | 23:22 |
| kanzure | 2D | 23:22 |
| kanzure | airhockey table is 2D | 23:22 |
| gene | oops I've been playing too much hyperbolic airhockey | 23:23 |
| gene | so you could figure out the location of the puck in close to realtime? | 23:23 |
| kanzure | not even close to real time | 23:24 |
| gene | still | 23:24 |
| kanzure | basically, since it's monochrome, you can have imagej filter out everything that's not near some threshold color | 23:24 |
| kanzure | then you filter out based on the size of pixel sizes | 23:24 |
| kanzure | then you have it dump the coordinates of the remaining pixel in each frame | 23:24 |
| kanzure | and that's your data set. | 23:24 |
| gene | that's a lot cooler than anything I did in my physics lab | 23:24 |
| kanzure | what did you do? | 23:25 |
| gene | shit, I want to learn image algorithms so I can make me an auto sentry | 23:25 |
| kanzure | go get imagemagick too then. | 23:25 |
| gene | we shot balls across the room and ESTIMATED how far they landed from the launch point | 23:26 |
| gene | big air hockey table? | 23:26 |
| kanzure | you can sit on it | 23:27 |
| gene | pics? | 23:27 |
| kanzure | eh, not right now | 23:27 |
| kanzure | but I'll upload the video later I guess | 23:27 |
| kanzure | when I get a free USB port on one of my machines | 23:27 |
| gene | you could figure out pretty close to where something was? | 23:28 |
| gene | and have it send the position to something else? | 23:28 |
| kanzure | it could figure out the coordinates of the pixels. | 23:30 |
| kanzure | and yes. | 23:30 |
| kanzure | hm. "Fluidic self-assembly of micromirrors onto microactuators usingcapillary forces" | 23:30 |
| gene | I http://www.alexandria.nu/ai/blog/entry.asp?E=32 | 23:30 |
| gene | so you can find something's velocity calculate where it's moving and shoot it! | 23:31 |
| kanzure | right, check out 'opencv' which does some of that stuff, like related to facial recognition | 23:32 |
| kanzure | so you could have an automated nerf shooter that shoots at faces or something | 23:32 |
| kanzure | but anyway, the processing isn't particularly fast since it's not streamlined | 23:32 |
| gene | how do I take stuff from open CV and get it to talk to servoes? | 23:32 |
| kanzure | if you wanted something that would process information in real time, you'd have to do some hacking. | 23:32 |
| kanzure | you have to talk to the servos. | 23:33 |
| gene | how? | 23:33 |
| kanzure | depends on the microcontroller you have, and the way that the servo wires up to it | 23:33 |
| kanzure | but in all likelihood it'd be something about sending signals much like you receive interrupts | 23:33 |
| gene | now the thing I'd really like to do is make a program that looks at what my webcam sees | 23:34 |
| kanzure | obviously you'd have some trig to do.. | 23:34 |
| gene | and checks if it's me | 23:34 |
| kanzure | couldn't I fool that by holding up a picture of your face? | 23:35 |
| gene | and shut's my computer off it's not me | 23:35 |
| gene | yeah... | 23:35 |
| gene | not if my computer had stereocameras? | 23:36 |
| kanzure | not if I had two print outs of your face® | 23:52 |
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