| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "It's a common artifact to get higher NDVI values from the darker areas of foliage in DIY infrared photos. The computation of NDVI depends not only ..." | Read more » | over 6 years ago | |||
| warren | "Hi, Ben - I hear via @stevie that you've switched to a higher power supply (2.5 amps) but again it only worked for ~24 hours. (https://data.sparkfu..." | Read more » | almost 7 years ago | |||
| warren | "Ah I see the last transmission was March 31st, was that when you moved it? " | Read more » | almost 7 years ago | |||
| warren | "Hi Ben! Catching up on this now, I guess it's running #open-pipe-kit, right? How long ago was the last data upload and what's changed since, if an..." | Read more » | almost 7 years ago | |||
| mathew | "@bkeist do you want to try troubleshooting it live? could you join next Tuesday's open call? its from 2-3 Central time. " | Read more » | almost 7 years ago | |||
| Alex_the_Ukrainian | "Yes, the faster connection plus Chrome had solved the problem. I'd like to experiment someday with 1) faster connection plus IE, and 2) slower conn..." | Read more » | about 9 years ago | |||
| warren | "Thanks! https://github.com/publiclab/spectral-workbench/issues/115 " | Read more » | about 9 years ago | |||
| wecapa | "Thanks. I just posted the issue on Github. " | Read more » | about 9 years ago | |||
| warren | "Hi, -- we're hoping to revise the videos soon but the interfaces may change again soon as well, so we're holding off for a little bit. Making the v..." | Read more » | about 9 years ago | |||
| warren | "It looks like you were able to solve it with a faster internet connection? http://publiclab.org/n/11677 I'm sorry you had trouble! " | Read more » | about 9 years ago | |||
| bsugar | "Indeed, we did use a rubber band with a knot (er...small ball of gaf tape) underneath per the instructions here determine how you will trigger the..." | Read more » | over 9 years ago | |||
| cfastie | "Good tips. Did you figure out which settings caused your balloon flight photos to be overexposed? It looked like some of your photos were exposed ..." | Read more » | over 9 years ago | |||
| lionheadrex | "THANK YOU!!! I'm terribly impressed that you could tell the circular grooves were horizontal. I'm going to have to tinker a little bit to make th..." | Read more » | almost 10 years ago | |||
| cfastie | "That looks like a good arrangement. The DVD grating might have to be rotated. The circular grooves in the DVD (concentric to the outer edge) should..." | Read more » | almost 10 years ago | |||
| lionheadrex | "Here you go. I've tried a variety of angles, and I can see some emmission spectra, but once I close the box it goes away and all I can see is dark..." | Read more » | almost 10 years ago | |||
| warren | "Hmm, can you upload a photo of the box with the new angled layout? " | Read more » | almost 10 years ago | |||
| amysoyka | "This is your box: |o> |=| |__|| Your pointing your camera directly at the double slit - you instead need to point it at the black of the wal..." | Read more » | almost 10 years ago | |||
| lionheadrex | "Hmmm... when I do this, I can get green and blue lines running the right way - until I close my box. Then they're gone completely and still all I ..." | Read more » | almost 10 years ago | |||
| cfastie | "The grating (DVD) bends the light as it separates it into colors. So the grating has to be at an angle to the light coming from the entrance slit. ..." | Read more » | almost 10 years ago | |||
| warren | "Hey jay - this is a great post - it seems like your camera is just extremely sensitive and is being badly blown out (or clipped) by pointing your s..." | Read more » | about 10 years ago | |||
| cfastie | "Hi Jay, This is a great example of how important it is to get a good exposure on spectral photos. You have to hit it just right to get the most in..." | Read more » | about 10 years ago | |||
| Varquynne | "How's the band separation on this spectrum for a CFL? (https://spectralworkbench.org/analyze/spectrum/20875) I've adjusted the focus of the webcam..." | Read more » | about 10 years ago | |||
| warren | "Can you post links to some of your spectra demonstrating this? I think it might be best to just post a research note with some photos of your setup..." | Read more » | over 10 years ago | |||
| warren | "Hi, Denny - I think you got the wrong instructions in your kit -- for the older kit. We can mail you the new ones, but they are also available here..." | Read more » | over 10 years ago |