| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| ava_porter | "Thanks verybody " | Read more » | over 6 years ago | |||
| ava_porter | "Google will help you " | Read more » | over 6 years ago | |||
| Bronwen | "@yamanoorsai The fidget spinner sounds like a really cool project. Would you have any interest in sharing your process here in a research note? I'..." | Read more » | over 6 years ago | |||
| ShainaKasper | "I work with dozens of community groups fighting PFAS drinking water contamination and I have a few things to share: (1) When testing, there are a l..." | Read more » | over 6 years ago | |||
| warren | "Hi, Cindy - maybe we could prototype this end of August if you want? " | Read more » | over 6 years ago | |||
| sammy_6_2003 | "The cost for analysis can be quite costly. We are currently working in our lab network (Enthalpy Analytical LLC) to be able to offer a low cost scr..." | Read more » | over 6 years ago | |||
| cindy_excites | "Hi @yamanoorsai - that sounds quite fun! We need the balloons because of their visual impact - we'll be doing an evening walk through the city. " | Read more » | over 6 years ago | |||
| Ag8n | "The recommended limit of pfoa + pfos is 70 parts per trillion (!). That's recommended, it's not enforced. The method of analysis is by LC/MS/MS. ..." | Read more » | over 6 years ago | |||
| yamanoorsai | "I once created a fidget spinner that measured air-quality. The design worked but the wheel bearing for the spinner had some problems. " | Read more » | over 6 years ago | |||
| stevie | "Mike shared this question on Facebook, and received the following answers: Stefania Thomas: https://www.epa.gov/benmap Reply by Matt Krogh: T..." | Read more » | over 6 years ago | |||
| MaggPi | "One option may be to use a computer vision system. Believe it or not its a fairly simple code. Not sure it would work at night but it could proba..." | Read more » | over 6 years ago | |||
| liz | "There was this thread where people were discussing traffic counting: https://groups.google.com/forum/#!msg/publiclaboratory/cw_i-JIH2kA/vn9GW1lzBAA..." | Read more » | over 6 years ago | |||
| liz | "I've been wondering about making a "Portrait Book" of various particles, such as dust, combusted fuel, silica, metal shards, micrometeorites, etc. ..." | Read more » | over 6 years ago | |||
| cfastie | "sylvan, That sounds good. It's definitely easier to help someone articulate a question than to defend the results of a scientific study. Designing..." | Read more » | over 6 years ago | |||
| sylvan | "Thanks, Chris. I agree with what you've said. I can't imagine a tool that supports valid scientific arguments without the support of experts either..." | Read more » | over 6 years ago | |||
| cfastie | ""People who use these tools do not need to understand research protocols or statistics in order to create scientifically-valid arguments." I am co..." | Read more » | over 6 years ago | |||
| warren | "Here are some other possibilities: Thermal imaging - potentially of thermal pollution or related water issues - https://publiclab.org/notes/nichol..." | Read more » | over 6 years ago | |||
| stevie | "Some people shared some other resources on a thread on the main list from earlier this year. From @mkirk : "I wanted to build a traffic counter ..." | Read more » | over 6 years ago | |||
| Ag8n | "Go to: https://github.com/jboone/tpms It gives a working system with links to a hak5 video etc. It doesn't count cars, but... " | Read more » | over 6 years ago | |||
| Ag8n | "Ok. Let's go through it step by step. First, after a little digging, it looks like there are two frequencies used 315 mh z and 433 mhz. So it woul..." | Read more » | over 6 years ago | |||
| JohanoSugarro | "@Ag8n That's good idea and clever way to do the job. The problem is that, this will be very complicated to set up everything. " | Read more » | over 6 years ago | |||
| stevie | " @stevie has marked ramseysprague as a co-author. " | Read more » | over 6 years ago | |||
| Ag8n | "You might look into TPMS ( short for tire pressue monitoring system) by j. Boone. Its freeware that runs on linux. The hardware is a rtlsdr ( it ..." | Read more » | over 6 years ago | |||
| stoft | "The spectrum of most common halogen lamps is neither smooth nor flat and generally do not have published spectral data. You might consider the Solu..." | Read more » | over 6 years ago |