| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| kkoerner | "This is going to depend on budget, scale and how important real-time emissions and pollutant speciation (whether you want concentrations of all of ..." | Read more » | about 6 years ago | |||
| pdhixenbaugh | "For example, one hour is pretty tight. If you introduced and started building the coqui one lesson, and finished building and tested water sources ..." | Read more » | over 6 years ago | |||
| pdhixenbaugh | "+1 for the coqui! I just adapted it for a 2h lesson with 14-17 yr olds. I think it could work well with 6 graders provided you had enough time to g..." | Read more » | over 6 years ago | |||
| Bronwen | "Hi @Kmckeown -- your seminars sound great! I think that the microscopes and Babylegs would be a great fit for something like this.The 3D printer an..." | Read more » | over 6 years ago | |||
| stevie | "I posted a question this morning about how to choose between different methods for monitoring turbidity. Does anyone on this thread have some insig..." | Read more » | over 6 years ago | |||
| programmer1200 | "I'm doing great, school (zoology was harder than I thought lol ) been keeping my busy but I have not forgotten my projects, still working on perfec..." | Read more » | over 6 years ago | |||
| warren | "Hi, @programmer1200 -- how are you doing? Any updates about your project? Hope you're well! " | Read more » | over 6 years ago | |||
| dcanprdn | "Absorbance is a chemical definition of how well a dissolved substance attenuates light at a particular wavelength as light passes through a solutio..." | Read more » | over 6 years ago | |||
| Vendy | "Thanks to you man! " | Read more » | almost 7 years ago | |||
| gretchengehrke | "@programmer1200, This is great! I agree with Chris and Holger that light scattering at a 90-degree angle is the standard approach for turbidity, an..." | Read more » | almost 7 years ago | |||
| programmer1200 | "Totally understand where your coming from , its very possible im having some loss because of that, to account for the possible over bright light so..." | Read more » | almost 7 years ago | |||
| Holger | "If I got it right, your photometer is measuring amount of light traveling through a solution or suspension. The loss of signal could be due to abso..." | Read more » | almost 7 years ago | |||
| programmer1200 | "Thanks That's a lot of good information, now for hands on river work that design works pretty well , I was more working toward collect and then tes..." | Read more » | almost 7 years ago | |||
| cfastie | "There is also lots of good information in this research note by Don about some testing he did. " | Read more » | almost 7 years ago | |||
| cfastie | "There has been a lot of information about measuring turbidity posted at Public Lab. Don Blair posted an excellent review of the common approaches t..." | Read more » | almost 7 years ago | |||
| xose | "So cool! Thanks @programmer1200!! " | Read more » | almost 7 years ago | |||
| xose | "@xose awards a barnstar to programmer1200 for their awesome contribution! " | Read more » | almost 7 years ago | |||
| fez | "That's great...thank you Warren. It's good to see something is moving in this direction too! So far DIY sensing is mostly relegated to air quality ..." | Read more » | almost 7 years ago | |||
| Alex_the_Ukrainian | "Hi! Happy New Year! We here in Ukraine continue to work on DIY small aerostats/balloons for ecological mapping. Unfortunately, we have here in Eas..." | Read more » | almost 7 years ago | |||
| liz | "Hi! Happy New Year! Are you all still working together? Any news? Wishing you well -- " | Read more » | almost 7 years ago | |||
| warren | "We're starting to compile a lot of different sensors and testing methods here -- could be of help! https://publiclab.org/wiki/water-sensors " | Read more » | almost 7 years ago | |||
| AdditiveFutures | "stacked acrylic sheets. volumes determined through cutting thin sheets with a laser cutter.. " | Read more » | almost 7 years ago | |||
| cfastie | "I am not familiar with the optics equations. My approach would be to enable precise adjustments of the components and find the best resolution (cri..." | Read more » | over 7 years ago | |||
| DavidMack | "I would stick with the aluminum. It's probably the most commonly used material for PM monitoring because as you stated non-conducting materials ar..." | Read more » | almost 8 years ago |