| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Bronwen | "Hi @adamsanta, yes! We do ship some tape and a DVD with the lego kit. " | Read more » | over 6 years ago | |||
| Ag8n | "I like energy dispersive X-Ray florescence (EDXRF). It's non-distructive, low power, and relatively cheap. On the down side, it's hard to calibra..." | Read more » | over 6 years ago | |||
| warren | "Awesome!!! " | Read more » | over 6 years ago | |||
| MadTinker | "Ran across this article that discusses at a high level the relationship between salinity, TDS, and conductivity. Reference . It specifically mentio..." | Read more » | over 6 years ago | |||
| Bobibi | "Yes. Biochar in manure, compost, and anaerobic digesters helps eliminate odors as well as reduce greenhouse gas emissions. " | Read more » | over 6 years ago | |||
| cfastie | "If that model is modified to allow for the components and the ribbon, it should be done so the new underside surfaces are not horizontal. FDM print..." | Read more » | over 6 years ago | |||
| stefannibrasil | "Hi, @warren @liz! I created a page > https://publiclab.org/wiki/call-for-papers I believe it can work out that way. Let me know what do you thin..." | Read more » | over 6 years ago | |||
| warren | "Although that's not the right piece -- we actually need the wider adapter; i think Richard was just saying he thought the camera interface was modi..." | Read more » | over 6 years ago | |||
| warren | "Richard from OpenFlexure has proposed this piece, although I'm not sure it's compatible with both cameras -- https://github.com/rwb27/openflexure_m..." | Read more » | over 6 years ago | |||
| zengirl2 | "For a project I was looking at toxins in water and read about sunflower stalks being used for this purpose. There was even a startup in NJ, but not..." | Read more » | over 6 years ago | |||
| omarormachea | "Dear @TeacherHelen, you can use the following free software created for android platforms, you can get information about it, from the calibration a..." | Read more » | over 6 years ago | |||
| Bronwen | "Hi @TeacherHelen, nice to meet you! The Papercraft Spectrometer wiki is a good place to start. There you will find links to instructions for calibr..." | Read more » | over 6 years ago | |||
| gretchengehrke | "Hmm. This is surprising to me too. Iron-rich clay can readily adsorb arsenic under oxygen-rich conditions (this is actually the root of Bangladesh,..." | Read more » | over 6 years ago | |||
| MadTinker | "Confirm? Hmmm... well, I have two data points, both of which coincidently use the same multiplier on EC to get TDS. From discussions with folks wh..." | Read more » | over 6 years ago | |||
| warren | "@stevie - maybe this could at some point be a good kit for students to use? Pretty cool, @MadTinker !! Interestingly the TDS pen also converts to ..." | Read more » | over 6 years ago | |||
| MadTinker | "An quick update: The TDS sensor from DFRobots performs as describes. Very easy to connect to the MiniPearl logger. In general, it collects a voltag..." | Read more » | over 6 years ago | |||
| stevie | "interesting! I've seen people using clay to filter water in Nicaragua, but I don't have an understanding of how that worked. " | Read more » | over 6 years ago | |||
| Ag8n | "I'm very surprised. I've spent many hours analyzing incoming raw material ( often times clays) usually for heavy metals. Clays are often the sour..." | Read more » | over 6 years ago | |||
| Ag8n | "Call them on the phone and talk to their salesman. Talk to tech services of you have to, but sales is usually better. A word of warning, the sale..." | Read more » | over 6 years ago | |||
| MarcioPamplona | "Yes, i'm aware of the technologies. I want to develop a sensor, using NIR spectometry to measure the moisture level and characterize wood chips. L..." | Read more » | over 6 years ago | |||
| warren | "Hi, all - i believe I've fully recovered this post -- apologies for the database problem over the weekend. Please tell me if things aren't working ..." | Read more » | over 6 years ago | |||
| Ag8n | "That's a lot of money. Nir is using overtones of IR bands. So you might be able to get by with something like atr with an IR. Just can't see that..." | Read more » | over 6 years ago | |||
| JSummers | "Hi @MarcioPamplona, Step one is to figure out where the absorbance shows up. By that I mean the wavelength that you need to detect. Googling "woo..." | Read more » | over 6 years ago | |||
| MadTinker | "There are a number of publications in this area because of the increased use of renewables (e.g. wood) for heating and the increased fire danger th..." | Read more » | over 6 years ago |