| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| 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 » | almost 7 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 » | almost 7 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 » | almost 7 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 » | almost 7 years ago | |||
| GlennShipley | "Microscopes and microscopy are a fascinating introduction to many fields of science, and there are very good standard, introductory microscopes ava..." | Read more » | almost 7 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 » | almost 7 years ago | |||
| stef | "Depends what you're printing. Can you be more specific? " | Read more » | almost 7 years ago | |||
| Ag8n | "Maybe. It depends on the chromophores present, the assay method used, and a bunch of other factors. And that's before you talk about the instrume..." | Read more » | almost 7 years ago | |||
| Ag8n | "By definition, turbidity measures the amount of light scattered at a 90 angle. So there would have to be a change in the optical layout from the ..." | Read more » | about 7 years ago | |||
| IvanNik | "it would be interested to use Vantablack.. maybe the manufacturer would be willing to donate some considering the purpose " | Read more » | about 7 years ago | |||
| stevie | "@primack - do you have any ideas on this one? Also @Cindy_ExCites ? " | Read more » | about 7 years ago | |||
| stevie | "These are great! @primack more information on the apps would be great. Could you post some more about it in the answers below? Anything from Muki's..." | Read more » | about 7 years ago | |||
| stevie | "Here's an answer that came in from Yonit Yogev via email: "Suggest checking with the National Park Service. Most of the wild land national parks ..." | Read more » | about 7 years ago | |||
| stevie | "I know there was a project done by Extreme Citizen Science. @Cindy_ExCites do you have any ideas or advice? " | Read more » | about 7 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 » | about 7 years ago | |||
| Parsamparham | "Like " | Read more » | about 7 years ago | |||
| kgradow1 | "My favorite form of on-the-go documentation are the small science zines, which we've used to document stuff at Parts and Crafts as well as (very oc..." | Read more » | about 7 years ago | |||
| warren | "We're also now collecting more info on this page: https://publiclab.org/w/raspberry-pi-spectrometer " | Read more » | about 7 years ago | |||
| liz | "oh yes if there's any way you could explain more about how i could build one too, so that i can help test your method, that would be awesome! " | Read more » | about 7 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 » | about 7 years ago | |||
| Bronwen | "jbreen has done some work on this! Check out this note from a few years ago: https://publiclab.org/notes/jbreen/10-17-2013/nighttime-balloon-mapping " | Read more » | about 7 years ago | |||
| greg_george_Tufts | "We are working on another design in parallel to the magnus effect design described above. We are using principles of the Allsopp Helikites, but add..." | Read more » | about 7 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 » | about 7 years ago | |||
| kgradow1 | "We haven't tested a wide range of objectives -- that would be a great next step for this project " | Read more » | about 7 years ago |