question:community-microscope-challenges
question:community-microscope-challenges


Author Comment Last activity Moderation
maxliboiron "Yes!! This will work for plastic forensics! Especially as the light comes from above rather than below (most plastics are opaque). The resolution a..." | Read more » over 3 years ago
warren " OK, i was able to build one using @jiteovien's diagram; I remember at the Nueva School before MakerFaire last year, some of the kids were able to ..." | Read more » over 3 years ago
maxliboiron "Looks about right to me. " | Read more » over 4 years ago
jiteovien "Thanks for the reply Max! So, what we are really looking at for conversion is adding a secondary light source as seen in the image below. " | Read more » over 4 years ago
maxliboiron "In a perfect world, you wouldn't be looking through plexi at your marine plastic because plexi has characteristics of plastic (scratches, reflectio..." | Read more » over 4 years ago
warren "A bit more info on this back at this question from some months back: https://publiclab.org/questions/stevie/12-08-2017/could-the-raspberry-pi-micro..." | Read more » over 4 years ago
warren "This looks great, and AWESOME diagram! @maxliboiron do you think we have to flip the dissecting scope so that the materials can be on the same side..." | Read more » over 4 years ago
warren " " | Read more » over 4 years ago
warren " " | Read more » over 4 years ago
stevie "This post walks through collecting a sample, and some examples. They also reference this resource for collecting dust samples: http://www.funsci.co..." | Read more » over 4 years ago
warren "Added a follow-up to collect some reference images of respirable silica particles, here: https://publiclab.org/questions/warren/02-22-2018/what-do-..." | Read more » almost 5 years ago
warren "Added a follow-up to collect some reference images of respirable silica particles, here: https://publiclab.org/questions/warren/02-22-2018/what-do-..." | Read more » almost 5 years ago
warren "Note these prior questions related to this one: https://publiclab.org/notes/mathew/10-07-2016/sizing-images-at-portland-science-hackday And this,..." | Read more » almost 5 years ago
warren "This blog is by someone who works for an energy company, helping to mine frac sand, and publishes a book called "Finding Frac Sand" -- yikes. The ..." | Read more » almost 5 years ago
warren "TXSharon posted this note about photographs of sand dust from a sandbox: http://www.texassharon.com/2012/07/31/take-this-nice-fracking-sand-for-yo..." | Read more » almost 5 years ago
Ag8n "Ok, are talking about the difference between amorphous silica and crystalline silica? The amorphous is generally safe and crystalline is generally..." | Read more » almost 5 years ago
warren "@DavidMack posted on sticky pads a while back on the #particle-sensing page: Essentially tape, sticky pads have the advantage of capturing a recor..." | Read more » almost 5 years ago
stevie "One idea from @dswenson that came from the open call yesterday was to use materials like sticky yellow flytraps like these " | Read more » almost 5 years ago
warren "Reading through Mathew's note, i don't see a clearly labeled one, but I imagine we could find one online somewhere, or in a peer-reviewed paper? " | Read more » almost 5 years ago
warren "Gretchen, is there an example image (showing rounded and jagged edges) we can use as a reference to compare to, when looking at images of dust? " | Read more » almost 5 years ago
stevie "When we were in WI @gretchengehrke, @mathew, and I were visiting some friends and we took a sample from a window at their house. The house window w..." | Read more » almost 5 years ago
warren "Hi, Gretchen - what specific additional work based on Mathew's would help to answer this question? Can his proposed test using a particle of known ..." | Read more » about 5 years ago
warren "Also see https://publiclab.org/notes/mathew/10-07-2016/sizing-images-at-portland-science-hackday ! And this, where he tries to size a known diamet..." | Read more » about 5 years ago
warren "Also see https://publiclab.org/notes/mathew/10-07-2016/sizing-images-at-portland-science-hackday ! And this, where he tries to size a known diamet..." | Read more » about 5 years ago