| --- Log opened Wed Apr 27 00:00:58 2016 | ||
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| kanzure | hrmph | 07:51 |
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| cluckj | pfft | 07:52 |
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| JayDugger | aaaie! | 07:59 |
| JayDugger | (Don't know what you two have against vowels in wordlessness. Seemed unfair.) | 07:59 |
| kanzure | was reviewing my sleeptype output. not much exciting from last night. | 08:00 |
| JayDugger | I rather liked the spider monks. | 08:01 |
| JayDugger | Do you have a description of your setup? | 08:01 |
| JayDugger | There's a blog post from xkcd in 2007, which doesn't seem relevant. | 08:03 |
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| kanzure | JayDugger: just a wireless keyboard and a lazyboy chair | 08:30 |
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| maaku | https://gym.openai.com/ | 11:48 |
| maaku | .title | 11:48 |
| yoleaux | OpenAI Gym | 11:48 |
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| nmz787_i | those NJU iGem team people seem a bit misguided | 12:40 |
| nmz787_i | why aren't they, for example, making a virus that agonizes the receptor... to cut out cartels? | 12:43 |
| nmz787_i | we already have antagonists available | 12:43 |
| nmz787_i | :/ | 12:43 |
| chris_99 | nmz787_i, can you think of any reason why you can't simply place a camera behind a transmissive grating out of interest, was speaking to someone who said they'd had problems doing that | 12:45 |
| nmz787_i | lesnses could be an issue | 12:53 |
| nmz787_i | but the PLOTS folks do exactly that, I think, or they had a version with transmissive | 12:54 |
| nmz787_i | or maybe that was Simon Field | 12:54 |
| chris_99 | sorry whatcha mean by lenses being an issue? | 12:54 |
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| chris_99 | yeah you're right PLOTS does seem to do that - https://www.youtube.com/watch?v=AW3EpXxJBYo | 13:00 |
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| nmz787_i | well after the grating, the separation of freqs is done, period, and they are shooting out of the grating from a single (ideally, depending on initial beam focus into the grating) point... so are spreading radially, and there is no image-plane | 13:20 |
| chris_99 | ohh | 13:22 |
| chris_99 | you mean the camera lens gets in the way? | 13:23 |
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| nmz787_i | yeah | 13:25 |
| nmz787_i | use a DSLR instead of a webcam if you have it | 13:25 |
| chris_99 | yeah i do have a DSLR, but it would have an IR filter | 13:25 |
| chris_99 | although i have done long exposures which did pick up IR | 13:26 |
| chris_99 | did you mean using the DSLR without a lens then? | 13:27 |
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| nmz787_i | chris_99: yup, with no lense | 14:21 |
| chris_99 | aha gotcha | 14:22 |
| nmz787_i | chris_99: http://sci-toys.com/scitoys/scitoys/light/cd_spectroscope/spectroscope.html and DSLR version here: http://sci-toys.com/scitoys/scitoys/light/spectrograph/spectrograph.html | 14:23 |
| nmz787_i | oh, actually just a point n shoot | 14:23 |
| nmz787_i | not DSLR | 14:23 |
| nmz787_i | the latter is transmission | 14:24 |
| chris_99 | cheers, do you understand how they calculate the angle, for the pipe btw, i'm slightly confused why the grating can't just be parallel to the sensor | 14:27 |
| nmz787_i | nothing goes straight through | 14:29 |
| nmz787_i | I think that's the grating formula | 14:30 |
| chris_99 | oh wait, i think i may have misunderstood where the grating actually is | 14:30 |
| chris_99 | i think the grating is in the short pipe | 14:32 |
| nmz787_i | download and save this http://optics.sgu.ru/~ulianov/Students/Books/Applied_Optics/E.%20Loewen%20Diffraction%20Grating%20Handbook%20(2005).pdf | 14:33 |
| chris_99 | cheers, that looks great | 14:34 |
| chris_99 | oh just found this too - http://ibsen.com/technology/spectrometer-design-guide/ | 14:42 |
| chris_99 | which tells you how to calculate the angle | 14:42 |
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| kanzure | .title https://news.ycombinator.com/item?id=11583268 | 15:40 |
| yoleaux | Elon Musk Supports His Business Empire with Unusual Financial Moves | Hacker News | 15:40 |
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| kanzure | superkuh: are you trolling the u.s. navy? https://www.youtube.com/watch?v=ChjSlRZ-SZA | 17:12 |
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| superkuh | It was probably just coincidence. | 17:36 |
| superkuh | It came back up a day later. | 17:36 |
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| elo- | Hey! | 19:33 |
| elo- | are there any Transhumanists in San Diego? | 19:33 |
| Aurelius_Home | yashgaroth | 19:34 |
| yashgaroth | mhm | 19:34 |
| elo- | that all? | 19:34 |
| yashgaroth | far as I know | 19:34 |
| kanzure | joseph jackson | 19:40 |
| kanzure | duh? | 19:41 |
| kanzure | jonathan cline? although he pretends not to be. | 19:41 |
| yashgaroth | in this channel, I assumed | 19:41 |
| kanzure | if los angeles counts as san diego, there's cory tobin and his crew up there.. at least. | 19:41 |
| elo- | thanks | 19:51 |
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| kanzure | https://bitcoinmagazine.com/articles/mit-panel-democracy-is-antithetical-to-what-bitcoin-represents-1461771081 | 21:18 |
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| fenn | nmz787: what about adding a second grating with a different pitch turned at 90 degrees around the beam axis? it should separate the different wavelengths from overlapping orders from the first grating | 22:36 |
| fenn | actually it can be the same pitch | 22:37 |
| fenn | start with a point source instead of a slit | 22:44 |
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| --- Log closed Thu Apr 28 00:00:59 2016 | ||
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