| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| GreenLeaves | "Hi warren, we have a problem. We wanted to edit our picture, but it didn't work, because the photo doesn't appear on the screen... " | Read more » | over 10 years ago | |||
| stoft | "Jeff, Yes, you could double the slit width and double the exposure but you also significantly decrease the resolution. That said, I've noticed that..." | Read more » | over 10 years ago | |||
| amysoyka | "Ta Da! " | Read more » | over 10 years ago | |||
| amysoyka | "Slit vs Cone ](https://i.publiclab.org/system/images/photos/000/005/151/original/IMG_20140705_212034.jpg) " | Read more » | over 10 years ago | |||
| mathew | "Object interference update: http://publiclab.org/notes/mathew/09-26-2013/telephone-poles-streetlights-at-sunset " | Read more » | about 11 years ago | |||
| mathew | "Through a somewhat dirty window. Yeah, wierd, right? its so striated. " | Read more » | about 11 years ago | |||
| warren | "Whoa - how is that sky spectrum so varied? Was it pointed through a screen or something? " | Read more » | about 11 years ago | |||
| mathew | "I don't think diffusion gets the stepped result expected. Here is a spectra of a very overcast sky: https://spectralworkbench.org/spectra/embed/13..." | Read more » | about 11 years ago | |||
| warren | "Super. I hope we can get the stepping to work, though most of all for the desktop kits -- imagine not doing any more lasercutting! And while some p..." | Read more » | about 11 years ago | |||
| mathew | "Yes, the photoprinting gets excellent results. I'm consistently impressed by it, and the lack of internal reflection and aberrations that appear. ..." | Read more » | about 11 years ago | |||
| warren | "Hi, Mathew - just posted an update on the stepped slit tests here: http://publiclab.org/notes/warren/09-25-2013/stepped-slit-tests BTW, your links..." | Read more » | about 11 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 | "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 | |||
| cfastie | "Adam, You must be right that some protocols for identifying substances require knowledge of the absolute intensity of spectral peaks. I am not fam..." | Read more » | almost 12 years ago | |||
| adam-griffith | "I was thinking that in order for users to identify an unknown substance, it would be necessary for differing intensities to be compared across spec..." | Read more » | almost 12 years ago | |||
| adam-griffith | "I was thinking that in order for users to identify an unknown substance, it would be necessary for differing intensities to be compared across spec..." | Read more » | almost 12 years ago | |||
| cfastie | "Adam, That's right, a narrower entrance slit allows emission or absorption lines to be resolved better. So you can know more precisely the wavelen..." | Read more » | almost 12 years ago | |||
| adam-griffith | "Hi Chris, Great write up. So the impacts of narrowing the slit would be better resolution, but less light reaching the sensor - lower sensitivity..." | Read more » | almost 12 years ago | |||
| warren | "Fantastic writeup. " | Read more » | almost 12 years ago |