| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "We'd discussed using isopropyl alcohol at the Barnraising; I'd love to know if it can dissolve oil. Matt Pendergraft (@Matt_P) mentioned doing this..." | Read more » | almost 9 years ago | |||
| ernestootero | "Another solvent may do the trick of de-sorbing the oil. It should be highly volatile. Hexane or Acetone? " | Read more » | almost 9 years ago | |||
| liz | "Fantastic and entertaining write-up @eustatic -- thanks all! " | Read more » | almost 9 years ago | |||
| Matej | "Hi Jeff. I took triplicate spectra of each oil, before mixing it with water and after recovering the oil from frozen water. You can find them at my..." | Read more » | almost 9 years ago | |||
| Matej | "@pdhixenbaugh: There are different oil concentrations which can be detected by naked eye. We had a very interesting debate about this at this last ..." | Read more » | almost 9 years ago | |||
| Matej | "HI Mary, I am not 100% familiar with methods of collecting oil from soil. I think @eustatic might know better. I saw he had some diluted soil sampl..." | Read more » | almost 9 years ago | |||
| warren | "Cool, Matej! Do you have comparison sets of the pure unfrozen/undiluted samples alongside the frozen versions, and also alongside samples in minera..." | Read more » | almost 9 years ago | |||
| marlokeno | "@marlokeno- Great work, Matej- Do you have any thoughts on applying your research to collecting samples from frozen soil? How will frozen earth af..." | Read more » | almost 9 years ago | |||
| stevie | "In a set, the beta program has people to post the "sets" in a research note. I smoothed the individual scans and compiled them as a set and posted ..." | Read more » | almost 9 years ago | |||
| warren | "Oh, but are these in a set, or individual? Maybe auto-smooth is not working in the old sets viewer only when viewing spectra individually? " | Read more » | almost 9 years ago | |||
| stevie | "It's the "auto smooth 10 rows below" button right? here are the two graphs:: Smoothed:: Not Smoothed: " | Read more » | almost 9 years ago | |||
| warren | "Oh, interesting. Can you make a set which compares smoothed vs. non-smoothed? In my tests, it reduced noise/spikiness, which helped discourage me f..." | Read more » | almost 9 years ago | |||
| stevie | "Another question I had was why we "auto smooth" each sample. I saw no difference from when I did this on my sample sets from when it wasn't done (I..." | Read more » | almost 9 years ago | |||
| warren | "It only reads the top line of the image; this is documented but not as clearly as it should be. I just added this line to the display to help clari..." | Read more » | almost 9 years ago | |||
| stevie | "the "20w50 A" was my first scan. Might have taken me a bit to get these consistent, but I'm not really sure why it was so different. I equalized th..." | Read more » | almost 9 years ago | |||
| warren | "Wow, your scans look really awesome and consistent! the 20x50 less so, but still good. Why do you think the 20w50 varied more? Are all of those are..." | Read more » | almost 9 years ago | |||
| liz | "This is great! 20 people replicated this construction in Cuenca, Ecuador by printing out their own on heavy black paper. " | Read more » | almost 9 years ago | |||
| pdhixenbaugh | "@Matej Lots of interesting things here! Anecdotally from the spill response team I work with, it only takes a few drops of oil to create a sheen, s..." | Read more » | almost 9 years ago | |||
| HappyS5 | "Hello! @Matej What a wonderful need. You will be a useful person in your community if something happens. In the latter part of your note, you me..." | Read more » | almost 9 years ago | |||
| warren | "I loved learning about this at the Barnraising and it's great to read the in-depth report-back too, thanks Stevie! " | Read more » | almost 9 years ago | |||
| Matej | "HI Guys, Thanks for your interesting comments! Jeff: I will certainly try to do that. In general I am trying to find out what could be a realistic..." | Read more » | about 9 years ago | |||
| mathew | "Awesome technique! the look of the 5w-30 reminds me of thawed out frozen diesel fuel. I think the milkiness in diesel from freezing is from wax cr..." | Read more » | about 9 years ago | |||
| warren | "Hi matej - are the differences in the 5w30 just by visual inspection or in the spectrum as well? " | Read more » | about 9 years ago | |||
| warren | "The embeds are working again. Thanks for your patience! " | Read more » | about 9 years ago |