| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Linked to from http://publiclab.org/wiki/oil-testing-kit#Challenges " | Read more » | over 10 years ago | |||
| warren | "@mathew - just dug up this old note, which shows a method for equalizing area. I'd love to find more literature on the subject, but it's worth a tr..." | Read more » | over 10 years ago | |||
| warren | "Oh I was just hoping for links to the raw data you collected. " | Read more » | over 10 years ago | |||
| warren | "Sorry! Spectral Workbench. " | Read more » | over 10 years ago | |||
| warren | "Wow, very cool! Can you link to your spectra on SW? " | Read more » | over 10 years ago | |||
| warren | "One thing I didn't understand was that they are listing the input light at longer wavelengths than the fluorescence peaks they're looking for. I wa..." | Read more » | over 10 years ago | |||
| warren | "Update: photo of the samples from Crude Oil Set #1: " | Read more » | over 10 years ago | |||
| warren | "It occurred to me in talking with @stevie that samples we collect ought to be treated as "unknowns" -- i think these mail-order samples are directl..." | Read more » | over 10 years ago | |||
| warren | "Tagging this as an "event" and adding a date tag! " | Read more » | over 10 years ago | |||
| warren | "@stevie did you see this note now that Henry's added images? Pretty neat, and perhaps one of the only posts I've seen of the oil testing kit in the..." | Read more » | over 10 years ago | |||
| warren | "Also can you share any of the spectra you did get? Links? Thanks! " | Read more » | over 10 years ago | |||
| warren | "Wow the photos are amazing. Was there a reason you mostly used the green? A blue laser will excite a broader range of colors, since light can only ..." | Read more » | over 10 years ago | |||
| warren | "Hi Stevie! Just sharing this poster I designed: https://docs.google.com/drawings/d/1gjkbcTxxd6vJYDvFeo7d2_FMi1CFzk-Qqf_De6QWsH4/edit " | Read more » | over 10 years ago | |||
| warren | "Cool yes I forgot about that dusjagr! Sketch of audio powered LED: " | Read more » | over 10 years ago | |||
| warren | "Check out this post: http://publiclab.org/notes/warren/07-05-2014/oil-testing-spectrometry-workshop-at-fab-10 " | Read more » | over 10 years ago | |||
| warren | "Another thought. To avoid needing batteries for the LEDs, I wonder if we could power them off the headphone jack of a phone... Like this laser acce..." | Read more » | over 10 years ago | |||
| warren | "Well I like the angle in part because it seems convenient for viewing on a table or countertop... Almost like a lectern. And we can adhere a phone ..." | Read more » | over 10 years ago | |||
| warren | "I wasn't sure where you'd posted your later design but I wanted to test a version of it with fold over joints like on a fried clam basket. This mig..." | Read more » | over 10 years ago | |||
| warren | "Hmm, can you upload a photo of the box with the new angled layout? " | Read more » | over 10 years ago | |||
| warren | "I think the 405 nm ones may be enough -- this looks like fluorescence just like crude oil, so we'd only be measuring >400nm light anyways. The i..." | Read more » | over 10 years ago | |||
| warren | "Also why does the laser show more in the coal dust vial? Are you sure it isn't fluorescing? Could you take a clearer photo? " | Read more » | over 10 years ago | |||
| warren | "Wow, great work. For Grand Isle Coffee 10x (the one where the laser doesn't go all the way through), it looks like you could dilute it further. Or ..." | Read more » | over 10 years ago | |||
| warren | "Hi, nickha - very interesting! Sorry for the slow reply -- The problem seems to be the orientation of the bands and light leaking into the chamber..." | Read more » | over 10 years ago | |||
| warren | "Hi, Henry - what is your fluophore? Did you purchase the alpha oil testing kit with the blue/uv laser pen? I've been able to line up the desktop ..." | Read more » | over 10 years ago |