| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| jsbonillam | "@warren The camera will be just part of the spectrometer. I am still considering whether to use LDRs (light depending resistors), as here http://ww..." | Read more » | almost 7 years ago | |||
| adyr_construction | "I can basically control the order when I lay out the different pictures. All it needs is to be exported in the same order. " | Read more » | almost 7 years ago | |||
| warren | "How would you set up the spectrometer next to the other equipment, or the tracker? Are you using a raspberry pi camera as-is, as well, or just as p..." | Read more » | almost 7 years ago | |||
| warren | "I think the Lego spectrometer's suitability for this is an open question, but the Raspberry Pi Camera v2 is very low noise and could be worth testi..." | Read more » | almost 7 years ago | |||
| JSummers | "Building a spectrometer is a fine university project, but this will not work for detecting fentanyl. Fentanyl does not absorb in the range where t..." | Read more » | almost 7 years ago | |||
| stef | "This may not be a project to determine the quantities of the subject of your concern. The spectrometer in question is at an entry level and the ana..." | Read more » | almost 7 years ago | |||
| warren | "Also, if you know anyone who does Leaflet or Ruby on Rails work and is interested in pitching in, that would be great! Even tweeting out these issu..." | Read more » | almost 7 years ago | |||
| warren | "Hi, we've long wanted to implement this feature but haven't yet. There's an open request here where we're hoping someone can help out in solving th..." | Read more » | almost 7 years ago | |||
| G33K4P00RV4 | "Thanks! " | Read more » | almost 7 years ago | |||
| warren | "Wig Zamore also chimed in on the mailing list: Hi Jeff - My guess is that if Weather Underground and EPA and CARB have been involved the product i..." | Read more » | almost 7 years ago | |||
| warren | "That's right! We thought 0-100 would be more familiar to people, but the original values are preserved in the raw data. " | Read more » | almost 7 years ago | |||
| warren | "No problem -- i guess, so for example, I'm not sure if red ink shows up on black paper, but we use colored ink (red, blue) on brown paper when we m..." | Read more » | almost 7 years ago | |||
| BrandonFeenstra | "If you would like to learn more about Air Quality Sensors and their performance against regulatory instrumentation, I would recommend a visit to th..." | Read more » | almost 7 years ago | |||
| G33K4P00RV4 | "Yes, I was referring to the spectrometer. Non black ink on non black paper. Sorry if I was a little unspecific. This is my first time doing anythin..." | Read more » | almost 7 years ago | |||
| stevie | "Also from Caren Cooper of SciStarter: "...Sound Around Town. http://soundaroundtown.org/ We have adapted commercial recording units (Roland-05) and..." | Read more » | almost 7 years ago | |||
| zengirl2 | "Using apps is certainly handy for when the noise issue is unexpected. One of the apps I blogged about gave the example of students having a hard ti..." | Read more » | almost 7 years ago | |||
| warren | "I think either would work, but haven't tried it myself. Once you get this assembled, please do and share your results! " | Read more » | almost 7 years ago | |||
| Ag8n | "The device referenced has very mixed reviews on the internet. And it does seem pricey. As a suggestion, borrow or rent one first. Try it and see..." | Read more » | almost 7 years ago | |||
| zayas | "Here is a device ( https://www.consumerphysics.com/business/ )we have considered using as it offers a self contained hand held unit suitable for co..." | Read more » | almost 7 years ago | |||
| zayas | "Thank you for the article! As mentioned in my posting, BRIX has been a standard tool used in the field ( current Consumer/Business product in the ..." | Read more » | almost 7 years ago | |||
| jht001 | "Here is an article from Ohio State University Extension on using Brix to measure vegetable quality Artice link " | Read more » | almost 7 years ago | |||
| Dr_Z | "So I take it the percentages that come from scrolling along the graph are the ratio of the data pixel values to the max of 255, correct? " | Read more » | almost 7 years ago | |||
| warren | "The Barnraiser is a 1-page mini newspaper we've run at recent Barnraisings -- http://publiclab.org/barnraiser I've been meaning to post more reso..." | Read more » | almost 7 years ago | |||
| Ag8n | "Absolutely correct. The fluorescence spectrometer is the same layout as for the basic turbidimeter. The standards are a bit of a pain, but quite ..." | Read more » | almost 7 years ago |