| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Ag8n | "I hate autocorrect. It's pyrolyzing, but autocorrect thought was an error and made it paralyzing. Sorry. " | Read more » | almost 4 years ago | |||
| Ag8n | "Just to give an idea of what's going on, you're paralyzing a bit of the stopper. Then burning it to see the flame and flame color. It's very simi..." | Read more » | almost 4 years ago | |||
| amocorro | "@mimiss @purl - this is so neat! Definitely thought you should take a look. " | Read more » | almost 4 years ago | |||
| Ag8n | "Very good work. Another possible demonstration. I worked for a pharmaceutical company. We would check the incoming stoppers to see if they had b..." | Read more » | almost 4 years ago | |||
| Ag8n | "Let me do a little more research and get back to you. " | Read more » | over 6 years ago | |||
| warren | "@Ag8n -- would you like one of our prototyping kits? We're almost ready to start shipping them out, and @asnow and @bronwen can get one over to you..." | Read more » | over 6 years ago | |||
| gretchengehrke | "That is such a good idea, @Ag8n!! We should definitely try this. @sara, what would you think about trying this with copper strips that are colocate..." | Read more » | over 6 years ago | |||
| Ag8n | "Copper and copper (I) oxide can be determined visually, based on color. Copper (II) oxide and copper sulfide, both of which are black, cannot be e..." | Read more » | over 6 years ago | |||
| Ag8n | "Hi Gretchen. Out of curiousity, what progress has been made on this question? Thanks. " | Read more » | over 6 years ago | |||
| zengirl2 | "I'm liking this a lot. I might want to try these for my experiment as I think snipping copper is hazardous LOL. Also, this could make an interestin..." | Read more » | almost 7 years ago | |||
| warren | "I was looking for some pre-cut smaller pieces of copper in standard sizes, in part to avoid the warping that cutting big sheets with shears can cau..." | Read more » | almost 7 years ago | |||
| warren | "Great notes on choosing different copper pipes (apparently there's red copper and blue copper?) by @sara on this post: https://publiclab.org/notes..." | Read more » | almost 7 years ago | |||
| gretchengehrke | "Hi @rajanzaveri, What sorts of concentrations and what media are you interested in measuring? Do you have more specific constraints for measurement..." | Read more » | about 7 years ago | |||
| islenos | "Hi Rajan! I'd love to know if you were able to figure out how to measure these compounds using the spectrometer. We are looking to measure cadmium,..." | Read more » | about 7 years ago | |||
| kgradow1 | "Listed! " | Read more » | about 9 years ago | |||
| liz | "Thank you for this incredible documentation! Do you have a list of what you purchased from the Science Company? I bet other people would like to re..." | Read more » | about 9 years ago | |||
| homechemist | "Anyway, tomorrow if I have time I am going to upload a new research note on chromatography that i think it will be really interesting for detecting..." | Read more » | over 9 years ago | |||
| homechemist | "Well, actually i cannot tell you exactly the concentration because i have prepared the solution roughly , but i think is more or less between 0,30..." | Read more » | over 9 years ago | |||
| warren | "Very interesting. What was the concentration of the copper solution? " | Read more » | over 9 years ago | |||
| homechemist | "The device is based on the public´s lab one, is one of the project that i posted time ago, the only thing that changes is the calibration(I used tw..." | Read more » | over 9 years ago | |||
| warren | "not large enough to detect most of the functional groups present What range would we need? I understood that the important fingerprint range is 16..." | Read more » | over 9 years ago | |||
| warren | "Wow! metallic solutions tend to block infrared light Really, even under 1000nm? Could this help to detect heavy metal contamination in water, or ..." | Read more » | over 9 years ago | |||
| ronhuber | "I think those cheap riffle crickets would be great! Can we set a time and date to meet and test deploy one or more? One assumes the 'seeps' w..." | Read more » | over 10 years ago | |||
| warren | "@donblair - is there a way we could use multiple riffle "crickets" to look at where point sources of heavy metal pollution are? Or some other way w..." | Read more » | over 10 years ago |