Comments

Author Comment Last activity Moderation
viechdokter "So... how about turning the (DVD holding) paper thing around and create a paper housing all around the wooden block with a parallel surface, a rect..." | Read more » almost 8 years ago
viechdokter "Ooops! Guess I tried to re-invent the bicycle here, huh? Looks like all my thoughts have been thought before - and many more... ;-) Will read it ..." | Read more » almost 8 years ago
viechdokter "BTW I wonder if we could find out more about the effects of the camera if you could do this same setup plus statistics again let's say with a green..." | Read more » almost 8 years ago
viechdokter "PS: I guess if you use acrylic you need a real dull black finish to prevent stray light. PPS: when I thought about a new setup I also came to a "C..." | Read more » almost 8 years ago
viechdokter "Hi Chris, do you mean "sit flush" as in "parallel", "pressing tightly against it"? I thought you had a good reason for the 20° angle between DVD a..." | Read more » almost 8 years ago
viechdokter "For anyone who is interested: https://publiclab.org/notes/viechdokter/04-15-2016/thinking-about-a-more-stable-spectrometer " | Read more » almost 8 years ago
viechdokter "Sorry about the typo. I meant "You could build this from wood or ..." " | Read more » almost 8 years ago
viechdokter "Here is what happened: The spectrometer slit was not in the center of the light beam but a little off-center. So when it was closer to the light..." | Read more » almost 8 years ago
viechdokter "The last point would be easiest to test: test a no-brand lamp with the same setup and the same power source and do the same stats on the results. " | Read more » almost 8 years ago
viechdokter "Hi stoft, I am really impressed by your organised experiment design and statistics approach.Compared with your's my tests are kindergarten stuff......" | Read more » almost 8 years ago
viechdokter "Yeah I had a look at stoft's post and was very impressed about his orderly and organised way of doing things. I built my spectrometer 3 weeks ago a..." | Read more » almost 8 years ago
viechdokter "Hi Warren, this is great news. As a newby with the PLab spectrometry I find it still a bit difficult to navigate on the spectrometry pages. (Where..." | Read more » almost 8 years ago
viechdokter "Thank you Warren, I will try it out tomorrow. It's bed time here. And I promise not to "abuse" this macro. I had just set it to 6 seconds to get a..." | Read more » almost 8 years ago
viechdokter "Thanx Warren, it's kinda "scary" how nice and positive everyone here on the forum reacts to my musings/problems/requests... Almost looks like you..." | Read more » almost 8 years ago
viechdokter "Okay, I just created an account and mentioned the issue there. I am not a good programmer, so I can't contribute any code, but I am a user and can ..." | Read more » almost 8 years ago
viechdokter "I already did compare all 10 spectra in the set but I always had to add a single spectrum at a time to get them all compared. What I meant were ch..." | Read more » almost 8 years ago
viechdokter "UPDATE 2: it took a few more pix in 4 minute intervals... " | Read more » almost 8 years ago
viechdokter "And here is the set. (Sorry I didn't know there was such a possibility. Loads of things I have to learn yet.) Oh, one proposal to the programmers: ..." | Read more » almost 8 years ago
viechdokter "Here is a wmv file, it's not so well lined up like the gif but you can see what I mean by stable wavelengths. cfl_reproducibility_animation.wmv " | Read more » almost 8 years ago
viechdokter "UPDATE: it did take a second capture, exactly 1 hour later. Have I set the timer wrong? " | Read more » almost 8 years ago
viechdokter "Hi Warren, great! That's exactly what I wanted. A time-lapse plug-in for the spectrum capture software. (The bean-cam is nice for videos, Chris, b..." | Read more » almost 8 years ago
viechdokter "I like the latter approach ("does calibration still hold?") best. Otherwise you have to recalibrate each time for a new cross section which is a bi..." | Read more » almost 8 years ago
viechdokter "Yeah, thanx for the tags. I will try to add them to my next notes. But feel free to add any tags you find helpful. " | Read more » almost 8 years ago
viechdokter "Sounds like I will have an "illuminating evening" tonight (as long as no model girls come along and tear my clothes off...). I don't have a Solux l..." | Read more » almost 8 years ago