| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| Tom_H | "A simpler formula is: =max(red:blue) " | Read more » | almost 12 years ago | |||
| eustatic | "As a huge fan of maple syrup, i approve of this post " | Read more » | almost 12 years ago | |||
| cfastie | "Tom, I'm glad you asked. The proper Excel expression for choosing the greatest among three values did not come to me quickly, so I just used the eq..." | Read more » | almost 12 years ago | |||
| liz | "This is, like, /so/ Vermont. I love it! " | Read more » | almost 12 years ago | |||
| Tom_H | "Hi Chris, How did you pick the color channel with the highest value? Did you write an expression for Excel to pick the highest value and use that? ..." | Read more » | almost 12 years ago | |||
| cfastie | "Thanks Mat. The paucity of easily accessible answers to your question suggests that they don't really understand what happens when syrup is made. A..." | Read more » | almost 12 years ago | |||
| cfastie | "I guess they plate the stainless steel mesh with gold to keep metallic flavors out of your tea (also used for coffee filters). I noticed it in the ..." | Read more » | almost 12 years ago | |||
| danbeavers | ""I filtered it through a gold tea strainer" Man, I can't hold a candle to that! " | Read more » | almost 12 years ago | |||
| cfastie | "That would be very good news if the problem was lens distortion, because that can be corrected with a single click. I will look into that. The imag..." | Read more » | almost 12 years ago | |||
| mathew | "Great info, Chris! Grade B is my favorite on taste-- I wonder what that last 12% of evaporation is doing that changes the color and gives that rich..." | Read more » | almost 12 years ago | |||
| danbeavers | ""I filtered it through a gold tea strainer" Man, I can't hold a candle to that! " | Read more » | almost 12 years ago | |||
| Tom_H | "I am guessing that what you are seeing is due to lens distortions from your camera. If this is the case, each different camera will have a differe..." | Read more » | almost 12 years ago | |||
| warren | "Man, Chris, you really have the obscure references down -- i haven't seen ST:TMP for over a decade... The reason I thought of just "smoothing" (mo..." | Read more » | almost 12 years ago | |||
| cfastie | "The corduroy appearance of the image is a mystery. The vertical lines are very regular in places, so I assumed they were related to the lines on th..." | Read more » | almost 12 years ago | |||
| warren | "Very cool to see the noise reduction graphed properly. Do you think the remaining "wobbliness" in the line is due in part to the spectrum itself (I..." | Read more » | almost 12 years ago | |||
| cfastie | "That sort of worked: https://spectralworkbench.org/analyze/spectrum/4476. I cut out a 50 pixel tall horizontal slice of the Snowy Sky spectrogram ..." | Read more » | almost 12 years ago | |||
| warren | "You know what we need? vertical averaging to smooth out noise. In live/waterfall mode, this'd be time averaging. For your spec, it'd just be averag..." | Read more » | almost 12 years ago | |||
| Tom_H | "Hi Chris, Two comments. 1) You might be overestimating Ebert's rigidity, so try deliberately stressing it to see how much change you get in the CFL..." | Read more » | almost 12 years ago | |||
| cfastie | "Mercury can account for the blue and green peaks, but not the red peaks. So all the tubes (except maybe the red one) have mercury. The red, pink, a..." | Read more » | almost 12 years ago | |||
| warren | "wow, cool -- i guess all mercury, huh? i suppose there aren't that many things that glow as bright as mercury, and if it gives you R, G and B, tint..." | Read more » | almost 12 years ago | |||
| cfastie | "Hi Spectralod, Your long tube CFL spectrum is calibrated correctly. I am not sure why you are not getting more distinct peaks with regions between ..." | Read more » | almost 12 years ago | |||
| spectralod | "I should have also said that I don't understand this website. It's all over the place. Is there one of those standardized forums you could use inst..." | Read more » | almost 12 years ago | |||
| spectralod | "How do you calibrate anything? I haven't figured this out yet. I don't have 3 blue wavelengths to choose from...I don't know which other green wave..." | Read more » | almost 12 years ago | |||
| Tom_H | "Chris, I also noticed the 405nm line was all but absent in your spectrum, and that is one reason I brought up my previous experience. I came acros..." | Read more » | almost 12 years ago |