fracsand
fracsand


Author Comment Last activity Moderation
gretchengehrke "Please post pictures in the comment section that are good example photos. I intend to put this information into a wiki page soon, and would love t..." | Read more » about 9 years ago
mathew "further followup on analysis of samples. " | Read more » about 9 years ago
mathew "read my follow-up on imaging the samples " | Read more » about 9 years ago
bareczek "interesting " | Read more » about 9 years ago
mathew "awesome! " | Read more » over 9 years ago
warren "Hey @mathew - wrote up a driver for the Dylos - it was very simple, just listening and it returns "0,0" every so often. If there's a manual or some..." | Read more » over 9 years ago
warren "And taking note that for the Thermofisher and the Speck, we're only doing spot readings, not averages. This should change: https://github.com/jywa..." | Read more » over 9 years ago
warren "And the Speck too: https://github.com/jywarren/opk-speck-cli now running. " | Read more » over 9 years ago
warren "Note that I did not zero out the TF, and the vertical scales are wrong. Just very very early testing of the drivers. " | Read more » over 9 years ago
warren "And over a longer period -- 2/3 of the way through, i lit a piece of paper on fire. " | Read more » over 9 years ago
warren "Thermofisher working! https://github.com/jywarren/opk-thermofisher-pdr1500-cli and https://data.sparkfun.com/streams/g6Gn19yp9yU6WaObjlYO Leavin..." | Read more » over 9 years ago
warren "Mathew also did some good research on the ThermoFisher PDR-1500 http://www.thermoscientific.com/en/product/i-personal-i-dataram-pdr-1500-aerosol-mo..." | Read more » over 9 years ago
warren "We now have live graphs from it -- looking good! " | Read more » over 9 years ago
warren "Here's some data from the Shinyei. We're still interpreting this: https://gist.github.com/jywarren/54453678f43a2c555f64 " | Read more » over 9 years ago
warren "Finishd the OPK Firmata CLI for one-pin readings: https://github.com/jywarren/opk-firmata-cli/ @rjstatic and @donblair - pretty useful; basically ..." | Read more » over 9 years ago
warren "So, today I wrote an OPK driver using the Firmata Node library to access an Arduino over the Firmata firmware, but we discovered that the Shinyei n..." | Read more » over 9 years ago
warren "@mathew sez: Node.js interface for the Speck: https://github.com/CMU-CREATE-Lab/node-speck-sensor node.js interface for SHT15 on Raspberry Pi htt..." | Read more » over 9 years ago
marlokeno "Markdown stray related concern: I remember reading-sorry I can't remember the source-that some pharmaceutical companies were attaching the pharma m..." | Read more » about 10 years ago
mathew "That candle protector is a great way to picture how this sensor works! I think the tiny grate on top of the sensor itself does something similar. ..." | Read more » about 10 years ago
mathew "I'm pretty worried about those particles too. I think we would need an electron microscope to measure them though-- that's a pretty big barrier to..." | Read more » about 10 years ago
marlokeno "Markdown In order to measure particles in sand mine areas of W. Wisconsin/ SE Minn., I noticed from a google/NASA map today that average wind spee..." | Read more » about 10 years ago
marlokeno "2 I am concerned about sub 2.5 micron particles of silica, particles the size of nanoparticles or close to it. Here's a reference to nanotech expo..." | Read more » about 10 years ago
marlokeno "Great work, Matthew, and great job leading dusthack in Menomonie. I'm concerned that the chair of the geology dept. at UW-Eau Claire is claiming t..." | Read more » about 10 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 » about 10 years ago