| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| blogibaba | "Hi, I am Sagar from India. This app is amazing. It is available on the play store n I am going to add many of them. BDW thanks for this beautiful i..." | Read more » | over 4 years ago | |||
| LyricsSpears | "Nice post thanks!!! click here " | Read more » | over 4 years ago | |||
| stevie | " Love this! I added the activites tag on this so people know it's something they can do. Have you visited the wiki page on noise yet? Want to help ..." | Read more » | almost 5 years ago | |||
| liz | " This is great! i had the opportunity to share this project with several people over the weekend who were lamenting the lack of any quiet spaces in..." | Read more » | almost 5 years ago | |||
| niklasjordan | " Hey, first: welcome to PublicLab! Glad you could make it. I promise you won't regret it ;-) Really cool project. One question: Do you plan to int..." | Read more » | almost 5 years ago | |||
| belkinsa | " Thank you @MadTinker, I updated the page with that info, hopefully it's right. " | Read more » | about 5 years ago | |||
| MadTinker | " @belkinsa I’d strongly suggest the Winkler test for monitoring DO. It’s easy, can be done reliably by 14+ yr old kids. Works on lakes, rivers, etc..." | Read more » | about 5 years ago | |||
| belkinsa | "Sorry for the delay. I was thinking that the data could be used for monitoring rather than education because that data could be used as a red flag...." | Read more » | about 5 years ago | |||
| stevie | "Hi @Belkinsa ! What are you hoping to use the data for? We recently worked with one of the LaMotte kits to talk about different water quality param..." | Read more » | over 5 years ago | |||
| MadTinker | " do not use DO sensor On a monthly period, at a number of sampling locations in the watershed, air/water temperature are collected and: DO, Ha..." | Read more » | over 5 years ago | |||
| joyofsoy | "These answers came from Twitter user @Sulfur_Blue on a tweet I shared through the Public Lab Twitter account: Consider overall costs / maintenance..." | Read more » | over 5 years ago | |||
| Ag8n | "My background is mostly industrial- specifically pharmaceutical. So much of the testing was guided by something like The USP. The instruments were..." | Read more » | over 5 years ago | |||
| zengirl2 | "I will be attending! " | Read more » | over 5 years ago | |||
| MadTinker | "@Ag8n - yeah, pretty sure you're right about filtering. I also think there are some calibration issues that remain even with a perfect sample. Sti..." | Read more » | about 6 years ago | |||
| Ag8n | "Madtinker- I've seen "universal" pH indicators before. Interesting, using them with the spectrometer. You would probably need to filter the water..." | Read more » | about 6 years ago | |||
| MadTinker | "spectrophotometric technique: Ground and river water quality monitoring using a smartphone-based pH sensor " | Read more » | about 6 years ago | |||
| WaterGeek | "Fantastic work. Can't believe I hadn't heard of this before. " | Read more » | about 6 years ago | |||
| liz | "This is inspiring, thank you for bringing attention to this! " | Read more » | over 6 years ago | |||
| liz | "one more: https://publiclab.org/questions/liz/09-22-2017/what-are-examples-of-citizen-science-projects-that-have-tested-water-for-ph " | Read more » | over 6 years ago | |||
| liz | "Also this one: https://publiclab.org/notes/liz/09-22-2017/when-is-litmus-paper-not-good-enough-for-measuring-ph " | Read more » | over 6 years ago | |||
| liz | "Very cool! I just asked this question: https://publiclab.org/questions/liz/09-22-2017/how-has-ph-testing-evolved-over-time " | Read more » | over 6 years ago | |||
| mathew | "Yes, thanks, Chris! I was focusing on finding the right image, not getting the right numbers in. " | Read more » | over 7 years ago | |||
| cfastie | "Mathew, that diagram is a little misleading. A lens with a 45° field of view (focal length of 44mm equiv.) would capture a photo with a long side e..." | Read more » | over 7 years ago | |||
| mathew | "Chris's simplified answer is illustrated in our balloon mapping guide: Most camera lenses have a viewing area angle close to 90 degrees, but oft..." | Read more » | over 7 years ago |