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web-development


Author Comment Last activity Moderation
cfastie "I didn't know sodium was used as a phosphor in CFL lamps. That green line is one of the brightest in CFL spectra and in all mercury spectra, and me..." | Read more » over 6 years ago
dsvilko "By comparing my spectra of the Sun (more lines for precise polinomial callibration) with that of the CFL lamp, I can confirm that the green line is..." | Read more » over 6 years ago
stevie "Hi there! Excited about the GSoC projects! If anyone has things I could test out I'd love to check them out. Not a coding person, but I can run thr..." | Read more » over 6 years ago
ananyo2012 "Thanks Jeff for the appreciation! I am also overwhelmed to see the number of contributors in our codebase and it keeps growing! " | Read more » over 6 years ago
liz "This is a great report, thanks for posting! " | Read more » over 6 years ago
liz "Thanks @zega! " | Read more » almost 7 years ago
zega "Oh and i suggest using QTI plot (you can zoom into graph data way better then excel, plot traces with just right click/plot) very nice open source ..." | Read more » almost 7 years ago
zega "Yes i do, here: FC__long.txt " | Read more » almost 7 years ago
warren "Oh, great -- do you have raw data for these as well, like CSVs? " | Read more » almost 7 years ago
zega "I will start with long CFL tubes that i just did... Unfortunately i don't have bare tube (diffuser in front/office lights) that might play same ro..." | Read more » almost 7 years ago
cfastie "Hi Robert, In this note and comments we were lamenting the lack of replicate spectra of CFL lamps to confirm the information at the Wikipedia page...." | Read more » almost 7 years ago
warren "Oh thanks! I believe, but Chris may correct me, that it'd be sufficient to measure a cold long tube fluorescent lamp and compare it to pretty much ..." | Read more » almost 7 years ago
zega "@warren , @cfastie I see i'm kinda late to the party, i can offer source verification (you can ship CFL source to me) with 3rd party device, Ocean..." | Read more » almost 7 years ago
warren "Just got this up -- a little late again, as usual. Please leave any feature requests, feedback, ideas or questions you have here in the comments! " | Read more » over 7 years ago
mathew "those flat spots are the clipping I warned about in my note: https://publiclab.org/notes/mathew/09-23-2014/graded-oils-using-uv-fluorescence " | Read more » almost 8 years ago
warren "Hmm. So I'm wondering if part of the fit problem is because we're simply comparing intensity at the 14 points and 13 troughs. Take this example: ..." | Read more » almost 8 years ago
warren "Cool, thanks! I was mainly looking for a citation for the most common forms of Hg, and/or a clear reference for which is found in CFL bulbs. But aw..." | Read more » almost 8 years ago
gretchengehrke "I'm happy to post my dissertation, but it has nothing to do with this (it explores natural Hg isotopic composition and fractionation in the marine ..." | Read more » almost 8 years ago
warren "I'm going to revise: 211px and 742px, out of a total of 1390px. " | Read more » almost 8 years ago
warren "Oops, meant to share links to my tests -- here's the one I used the new calibration system on, and listed 3 approximate errors for: https://spectra..." | Read more » almost 8 years ago
warren "Hmm. I guess there are pros and cons to each approach. I agree that the 546 line doesn't result in a great linear calibration -- some end up about..." | Read more » almost 8 years ago
cfastie "If the original Snowy Sky CFL is calibrated by pinning down the 436 nm and 546 nm peaks (using a macro) it looks like this: Most of the peaks do..." | Read more » almost 8 years ago
warren "OK - I'm adapting the calibration slider to use the photoshop-corrected version of the Snow Sky spectrum. I read the blue 436 peak at 210px from l..." | Read more » almost 8 years ago
warren "Would you be willing to try a recalibration using the 436/546 lines as a starting point? Would that be useful as a point of comparison? Also - I b..." | Read more » almost 8 years ago