| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "Useful thing to measure at a distance: Flame-offs at refineries and factories. Try to see what they're burning off! If it's at night, it could be i..." | Read more » | almost 12 years ago | |||
| warren | "I think you're right -- and for many applications, we're going to need to do long-exposure imaging. If we can iterate and find a good camera, perha..." | Read more » | almost 12 years ago | |||
| warren | "The focus isn't bad -- but you're right, it's very dim. How far away was the bulb? Was this through tissue paper? I'm not sure what could cause th..." | Read more » | almost 12 years ago | |||
| warren | "https://spectralworkbench.org/sets/show/103 Is this an intensity experiment? Maybe dilution or shutter speed? " | Read more » | almost 12 years ago | |||
| warren | "Hi! Can you upload an image of a fluorescent spectrum? That'll tell us if it's focused right. You shouldn't need to use a super bright light source..." | Read more » | almost 12 years ago | |||
| warren | "I've been thinking along similar lines to Chris, and would also be very interested to learn more about how the kind of intensity-less matching he d..." | Read more » | almost 12 years ago | |||
| warren | "Fantastic writeup. " | Read more » | almost 12 years ago | |||
| warren | "Thanks for documenting this and I'm eager to see the new camera working... but if you have a defective camera we (the Public Lab retail team) can d..." | Read more » | almost 12 years ago | |||
| warren | "I echo Chris's comments with two additions: we could perhaps improve the calibration by having the interface "snap" to the nearest peak when you ..." | Read more » | almost 12 years ago | |||
| warren | "What a fantastic writeup. It's really exciting to see all the matching CFL spectra being posted: https://spectralworkbench.org/tag/cfl " | Read more » | almost 12 years ago | |||
| warren | "Fantastic! Can you link to or embed some of your spectra? " | Read more » | almost 12 years ago | |||
| warren | "Very cool, adamlamee! Eager to hear more. Mingo: https://github.com/jywarren/spectral-workbench we can use all the help we can get, esp. with nati..." | Read more » | almost 12 years ago | |||
| warren | "It's great to hear that a minor angle adjustment will enable us to use these commercial film gratings. Thanks Chris, super write-up! Also, looks li..." | Read more » | almost 12 years ago | |||
| warren | "what kind of tinkerer throws anything like that away? :-) i have a ziploc full of them, haha. Great that things worked out! Links to any data you..." | Read more » | almost 12 years ago | |||
| warren | "The blue is not so bad... i think that blue peak may just be broader, see these examples: Is your bulb a "warm" fluorescent? There are mor..." | Read more » | about 12 years ago | |||
| warren | "Hi, ckmurt - i double checked by going through the build process from scratch again, and you're right -- 3-5" is too close. For whatever reason it ..." | Read more » | about 12 years ago | |||
| warren | "Well, not really, but we just took 25ml of each sample and scanned it with a xenon (halogen works too) source light. Bryan from Mystic said it's co..." | Read more » | about 12 years ago | |||
| warren | "Well, it's definitely in focus now, if that's 4". How are your spectra looking now? " | Read more » | about 12 years ago | |||
| warren | "If you have a chance to upload a photo of the barcode while it's out of the case, that can help us narrow down what's going on. Once we solve this..." | Read more » | about 12 years ago | |||
| warren | "Did you do the infrared conversion? In any case, I bet your camera is out of focus. You do need to focus it closer, whether or not you do the conv..." | Read more » | about 12 years ago | |||
| warren | "Hi! I didn't realize it was a kit -- i thought you'd built it yourself from scratch. In this case the slit is probably correct since it's been lase..." | Read more » | about 12 years ago | |||
| warren | "I think maybe you mean 0.2mm and 0.4mm, mathew? Good to know, both of you -- i'm getting the desktop kit slits cut today!! Thanks. " | Read more » | about 12 years ago | |||
| warren | "For the short term, it will prompt you to take a photo, and will allow you to upload it. Once we start on the native app, it will work just like th..." | Read more » | about 12 years ago | |||
| warren | "I'm very impressed that the foldable spectrometer can get such good resolution. Partially, of course, that's the DSLR, but I'm glad that folks with..." | Read more » | about 12 years ago |