dust
dust


Author Comment Last activity Moderation
warren "Would one of these hacked-webcam microscopes by http://hackteria.org and http://diybio.org be good enough magnification? http://hackteria.org/work..." | Read more » over 9 years ago
mathew "I bought a scanner earlier that claimed 9200 DPI, but I could only get at best 1700DPI out of it. it seems the best effective resolution of a slide..." | Read more » over 9 years ago
marlokeno "I have lots of photos of mines, most in Chippewa, Eau Claire, and Trempealeau county. Every time I photograph on the ground, I meet security. They ..." | Read more » over 9 years ago
marlokeno "I will be attending! " | Read more » over 9 years ago
amysoyka "@btbonval It was good advice, so thanks. This would work for identifying clumped asbestos fibers for sure! The thing that I really want to home ..." | Read more » over 9 years ago
btbonval "I just realized the images shown in the research note are thumbnails. The threshold enhancement helped the thumbnails a lot. Looking at the actual..." | Read more » over 9 years ago
btbonval "@amysoyka Yeah, that's pretty much what I meant. It worked way better than I would have thought. You can see wrinkles and bubbles in the tape! Inv..." | Read more » over 9 years ago
amysoyka "@btbonval Did you mean like this? I used Paint.net > Adjustments > Levels and made it so that the Input histogram was between 255-240. (..." | Read more » over 9 years ago
btbonval "The inverse helps make particles stand out. Another filter you might try is a threshold. If you're using GIMP (free and open source software for im..." | Read more » over 9 years ago
mathew "Thanks! @amysoyka that's an interesting idea. I haven't ever studied mines specifically, just basic geology. You're right though-- the issues of ..." | Read more » over 9 years ago
liz "Amazing presentation @Mathew ! I learned so much. The graphics and maps are great too. " | Read more » over 9 years ago
amysoyka "Great talk. You've done a great job at making this video informative - so U awarded you a watchdog barn star Anyhow, cutting to the chase. The iss..." | Read more » over 9 years ago
stevie "Sure Amy! " | Read more » over 9 years ago
amysoyka "I wont be able to attend in person, but this is really interesting sounding & relevant to where I am at right now. Keep me updated please. :) " | Read more » over 9 years ago
amysoyka "Hey Matt, We just had an asbestos scare in my neighbourhood - so I wanted to make some cheap and simple collectors that can be hung up by resident..." | Read more » over 9 years ago
stevie "Hi Matthew! Can I use the picture of the Dustduino in a presentation I'm giving on Wednesday? Hope all is well, did you get any sent off to Wiscons..." | Read more » over 9 years ago
eustatic "woah, nice idea with the aquarium pump, looking forward to it. scott " | Read more » almost 10 years ago
eustatic "great visuals " | Read more » almost 10 years ago
liz "@Willie , see this sensor data platform " | Read more » almost 10 years ago
jefffalk "Another well financed monitoring report that includes mobile monitoring is by David Snyder from UW Stevens Point: LADCO Midwest Wood Smoke Study: h..." | Read more » almost 10 years ago
willie "Jeff is correct. The video shows Dr Apte's set up for his work in Delhi. I included it as a kind of inspiration for the start of our work and somet..." | Read more » almost 10 years ago
jefffalk "There are apparently some misconceptions here. As I read it, the monitor used by Apte was a commercial DustTrak not a dustduino and his research h..." | Read more » almost 10 years ago
RonGeorge "Hi Willie Is the actual sensor used in the video a dustduino? I was surprised by the high sampling frequency of a low cost DIY device... The influ..." | Read more » almost 10 years ago
jefffalk "Having an inexpensive mobile monitor would be wonderful. In fact, having an inexpensive stationary monitor would be wonderful. But one needs credi..." | Read more » almost 10 years ago