| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Also, we're very interested in turbidity measurements -- there's a lot coming together here: https://publiclab.org/wiki/turbidity and this seems li..." | Read more » | almost 7 years ago | |||
| warren | "Wow, just going through this, it's amazing. Would you be willing to repost your blog in full so folks could reproduce the steps on the site here? L..." | Read more » | almost 7 years ago | |||
| warren | "Also - I noticed you're using a compact fluorescent lamp as a light source - but are you measuring absorption? In that case you probably want a bro..." | Read more » | about 8 years ago | |||
| cfastie | "The sensors in consumer cameras have very low sensitivity at wavelengths shorter that 400 nm. Some cameras are slightly sensitive down to about 380..." | Read more » | about 8 years ago | |||
| jakemartin | "A L2F is a light to frequency converter. This would work for any fluorescing oils such as crude oil. To distinguish them you would need to look a..." | Read more » | over 8 years ago | |||
| warren | "Wow, this sounds very cool! What's an L2F detector? Would this work for other fluorescing oils and would it be likely to be able to distinguish the..." | Read more » | over 8 years ago | |||
| ethanbass | "@warren - Please do send one along. I'd be happy to do some comparisons. " | Read more » | almost 9 years ago | |||
| warren | "Oh, did @matej end up with those? " | Read more » | almost 9 years ago | |||
| liz | "@warren - i do not have any of the polystyrene cuvettes " | Read more » | almost 9 years ago | |||
| dhaffnersr | "I agree Jeff on the toxicity of using Hexane as a solvent, that's why I have been using Isopropyl 91%. I also have been using Ethanol (C2H5OH,) it'..." | Read more » | almost 9 years ago | |||
| taramei | "@gretchen can we discuss make a general note about how plastics dissolve in solvents; this is an important concept for any kit user to understand f..." | Read more » | almost 9 years ago | |||
| warren | "@liz & @matej - did the polystyrene cuvettes last, or did they get melty? I like the nalgene-centric mixing process we used; much easier mixing..." | Read more » | almost 9 years ago | |||
| gretchengehrke | "Hi Steven, I'd like to follow up with you on updates from this project. I've done quite a bit of work with organic extractions, and two important ..." | Read more » | over 9 years ago | |||
| warren | "indeed. Updating now! " | Read more » | over 10 years ago | |||
| bsugar | "sure thing. maybe add something on this page that says "most recent parts list here" where here is the wiki page. " | Read more » | over 10 years ago | |||
| warren | "Hi, Benjamin - I think we're now going off the parts list on the oil testing kit page: http://publiclab.org/wiki/oil-testing-kit#Parts+list Yes, I..." | Read more » | over 10 years ago | |||
| bsugar | "a confusion about the parts list on the line about the laser: "or http://www.ebay.com/itm/like/350812684726?lpid=82 to buy just one cuvettes" two..." | Read more » | over 10 years ago | |||
| mathew | "Boom. " | Read more » | over 10 years ago | |||
| stevie | "I did post the ones we were looking at on the page here: http://publiclab.org/wiki/oil-testing-kit#Parts+list Or the direct links to the ones we w..." | Read more » | over 10 years ago | |||
| warren | "Actually @stevie and @natalie are sourcing new bottles right now, maybe you can get in on the order. We're hoping to switch to nail polish bottles,..." | Read more » | over 10 years ago | |||
| bsugar | "would the ones from ebay that I posted in the comment above be a good replacement? Cats you say? Then the cat gobo is for sure 1000% necessary. W..." | Read more » | over 10 years ago | |||
| mathew | "you just want a beam. the other tops that are cats and stars and octopuses are not helpful. " | Read more » | over 10 years ago | |||
| bsugar | "also, the recommended laser pointer comes with 5 different tops. are those necessary or will the standard tops do? http://www.ebay.com/itm/405nm-..." | Read more » | over 10 years ago | |||
| mathew | "actually, we did buy out all the rest of their stock. " | Read more » | over 10 years ago |