| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| mathew | "@stoft Dave, we're getting similar brightnesses between our readings of different oils by varying the concentration and/or light path, which seem t..." | Read more » | over 9 years ago | |||
| warren | "I don't know the word for this kind of thing, but maybe @btbonval does :-) The line divides the graph into two equal areas: " | Read more » | over 9 years ago | |||
| stevie | "Good work here. I like the blowout warning idea. Experimenting with the oil density is def. another good step, but I agree that the distinct variat..." | Read more » | over 9 years ago | |||
| stoft | "Looks promising. Maybe these are obvious but... - Pick 3-5 oils, or oil mixtures, as a reference test set -- low to high density -- then use them f..." | Read more » | over 9 years ago | |||
| warren | "Unfortunately some of these lines are covered by others. I guess I should make the key show a wavelength too? " | Read more » | over 9 years ago | |||
| warren | "OK, I added a couple more features -- one which bisects a graph with a vertical line where the area of the graph is equally divided -- what's that ..." | Read more » | over 9 years ago | |||
| mathew | "ok, trying to see if I can get good results from the Sanm camera, since all these spectra are from the discontinued Syba camera.... nope. the Sanm ..." | Read more » | over 9 years ago | |||
| mathew | "nice! " | Read more » | over 9 years ago | |||
| warren | "OK, added "equalize area" and scripting to the sets page: https://spectralworkbench.org/sets/show/1461 It still doesn't save, but makes that part ..." | Read more » | over 9 years ago | |||
| warren | "Diesel, gear oil, and N. Dakota crude: " | Read more » | over 9 years ago | |||
| warren | "Just a quick followup on area normalization: We really need smoothing that we can save too. " | Read more » | over 9 years ago | |||
| mathew | "What happens if you unscrew the lens on the laser and put it in front of the LED? can you concentrate the light to make a brighter point? " | Read more » | over 9 years ago | |||
| warren | "Another draft of the paper research note: I also made a Post-It notepad of these on Zazzle.com: http://www.zazzle.com/public_lab_paper_research..." | Read more » | over 9 years ago | |||
| stevie | "Draft event guide posted: http://publiclab.org/notes/stevie/08-13-2014/working-oil-testing-event-guide " | Read more » | over 9 years ago | |||
| stevie | "I agree! In this event, we were testing out a number of different bottle options, trying to source the best ones. (you can see some of the ones we..." | Read more » | over 9 years ago | |||
| bsugar | "hmmm...well, this presents a dilemma in that Public Lab will be the only ones with the purchasing power to buy them inexpensively, but people will ..." | Read more » | over 9 years ago | |||
| warren | "The orig bottles were basically square, but not very precise -- sort of that wavy crude surface from molded glass. But I have a sense that there's ..." | Read more » | over 9 years ago | |||
| bsugar | "regarding the new bottles, in my search to find alternatives, it seems like even the squarest of bottles on the outside have some curvature on the ..." | Read more » | over 9 years ago | |||
| warren | "Ooh, 36 articles which cite this one: http://scholar.google.com/scholar?cites=12262006161023041861&as_sdt=40000005&sciodt=0,22&hl=en t..." | Read more » | over 9 years ago | |||
| bsugar | "@stevie, it would be very helpful. I think all and all this makes an excellent framework for any workshop, in particular the part where you have t..." | Read more » | over 9 years ago | |||
| warren | "I like the idea that if there are 4 tables, four different organizers can sort of "staff" the tables, focusing on the parts they know best. " | Read more » | over 9 years ago | |||
| stevie | "hey all, Great thread. Scott thanks for writing up the materials list. Also, I'll add we had sticky notes and markers on each table with a post-it ..." | Read more » | over 9 years ago | |||
| warren | "Unexpected yes -- it was for some reason much harder to get light into the webcam! But very easy on a smartphone. We're working a bit on this probl..." | Read more » | over 9 years ago | |||
| eustatic | "1) yes 2) there's not enough light, so perhaps angling the laser a certain way, or shining it through at the right level would help, so that the ca..." | Read more » | over 9 years ago |