| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| stef | "I have used photographic neutral density filters and have not been able to view the sun directly using the spec3 highly modified device. The attenu..." | Read more » | over 6 years ago | |||
| Ag8n | "Only one suggestion then. Sunlight can be strong. As a safety measure, partially block the sun and work your way up to full exposure. Might not ..." | Read more » | over 6 years ago | |||
| jsbonillam | "I am going to make and analyse the graphs with the wavelength and absorption. " | Read more » | over 6 years ago | |||
| Ag8n | "Please forgive the question, but what lines are you using and what method of analysis? Thank you for the information. " | Read more » | over 6 years ago | |||
| warren | "Oh, i don't know, but it looks very cool! " | Read more » | over 6 years ago | |||
| 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 » | over 6 years ago | |||
| warren | "@ewilder and @hannahJG - I've moved this page over to https://publiclab.org/wiki/hydrogen-sulfide-photopaper -- and I really love the how-to guide!..." | 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 | "Good luck! And please do post it as an activity once you do - folks would love to see this step by step with some photos and such! " | Read more » | over 6 years ago | |||
| Flameytail | "i have not done the experement yet- but a detailed pre writen procedure is due on december 1st tommorow " | Read more » | over 6 years ago | |||
| warren | "This looks very cool! Have you taken photos of these steps, or might you? We would love to feature this as an activity if you can illustrate at lea..." | Read more » | over 6 years ago | |||
| warren | "Also see this related question: https://publiclab.org/questions/shaikhgous/11-18-2016/identify-plastic-material-using-infrared-imaging " | Read more » | over 6 years ago | |||
| warren | "I'm also posting a new issue for @cfastie's suggestion: That click vanished the note I was working on which did not seem very fair. I don't know m..." | Read more » | over 6 years ago | |||
| warren | "No problem, thanks for your input! That's curious about the autosave not being visible at first. I'm not sure what would've caused that but will lo..." | Read more » | over 6 years ago | |||
| MadTinker | "All, My apologies, my question probably came across a bit harsh. One of those days on my end. One other observation on this particular issue that ..." | Read more » | over 6 years ago | |||
| warren | "Also, a couple notes on other things you mentioned -- the main image does not get cropped, but the preview image is displayed oddly, so I can under..." | Read more » | over 6 years ago | |||
| warren | "Hi, sorry, that's always frustrating -- there is an auto-save function in the rich editor which you can use to retrieve drafts -- it's under the ....." | Read more » | over 6 years ago | |||
| cfastie | "When the rich text editor went live (a year or two ago?) I gave it a try. In the middle of writing my first Rich research note I couldn't figure so..." | Read more » | over 6 years ago | |||
| zengirl2 | "Just want to add that if you are having problems attaching a file, definitely switch to the "legacy" editor. I found that there was a problem attac..." | Read more » | over 6 years ago | |||
| liz | "wow yikes. Thanks Leslie. This is odd behavior. We will be checking it out! Do you have a time when you will be on PUblic Lab next? " | Read more » | over 6 years ago | |||
| liz | "Hi @madtinker , your dedication is inspiring, and i'm so sorry that there was any difficulty presented by the website. " | Read more » | over 6 years ago | |||
| zengirl2 | "I just published a note today and it was also wonky. There was some message at the top of the screen that was hovering. I had to click that off. I ..." | Read more » | over 6 years ago | |||
| MadTinker | "Okay, re-accomplished the introduction. Wrote it in something else and copy/paste to avoid me screwing something up. Not sure what's been done sinc..." | Read more » | over 6 years ago |