| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Oh, i don't know, but it looks very cool! " | Read more » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 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 » | over 6 years ago | |||
| warren | "They are the RGB image data pixel values, from 0-255. And note that due to image processing, noise, etc, this may not directly correspond to absorb..." | Read more » | over 6 years ago | |||
| warren | "So a design using the Lego Spectrometer, for example, might need a right-angle light source -- but that's not so bad, since already with fluorescen..." | Read more » | over 6 years ago | |||
| warren | "Hm, good point -- actually going back to an old post there's some great stuff here: https://publiclab.org/notes/donblair/08-25-2015/turbidity-001 ..." | Read more » | over 6 years ago | |||
| warren | "Agreed! And the new Basic Microscope Kit is a great low-cost way to get a microscope running -- should ultimately be under $100 for even 100x, and ..." | Read more » | over 6 years ago | |||
| warren | "I bet this is in reference to the papercraft spectrometer: http://publiclab.org/paper-spec But do you mean using black paper or using non black in..." | Read more » | over 6 years ago | |||
| warren | "Related: How can we detect contaminants in water samples with a DIY spectrometer using reagents? https://publiclab.org/notes/warren/12-18-2017/ca..." | Read more » | over 6 years ago | |||
| warren | "We're also now collecting more info on this page: https://publiclab.org/w/raspberry-pi-spectrometer " | Read more » | over 6 years ago | |||
| warren | "Hi, this is also really cool. I'd love to see these written up more fully as activities. You can post activities at https://publiclab.org/w/mini-ba..." | Read more » | over 6 years ago | |||
| warren | "Here's one for $40 -- would it work? https://www.amazon.com/OMAX-Achromatic-Compound-Microscope-Objective/dp/B00FG8BC62/ Here's a 100x one for $25..." | Read more » | over 6 years ago | |||
| warren | "We'll be posting more on this soon, but the very first steps are to be sure your project is posted on PublicLab.org on a wiki page -- like these ex..." | Read more » | over 6 years ago | |||
| warren | "@bmela @kgradow1 @wmacfarl is this already listed in the activities you posted? I just wanted a place to list links and prices and options. Thanks! " | Read more » | over 6 years ago | |||
| warren | "Agreed! it's so cool to see spinning. " | Read more » | over 6 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 » | over 6 years ago | |||
| warren | "Is nail polish remover just acetone, and is it pure enough for this? (Except for non-acetone nail polish remover, of course) https://www.amazon.c..." | Read more » | over 6 years ago |