| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Brother Will, who sent me the lantern slides, asked a good question today: What is a lantern slide? I guess I should have assumed that many folks b..." | Read more » | over 11 years ago | |||
| cfastie | "That's an excellent color table for the heat metaphor. This topic of how to display NDVI deserves much more attention. "It'd be neat to test the r..." | Read more » | over 11 years ago | |||
| cfastie | "Ned's plugin is available under downloads here: https://github.com/nedhorning/PhotoMonitoringPlugin. I still has a bit of a learning curve but offe..." | Read more » | over 11 years ago | |||
| cfastie | "Here is the one I got for Rosco and also a test to see if Jeff has implemented markdown in note comments. This one mimics two AA batteries and sho..." | Read more » | over 11 years ago | |||
| cfastie | "I Guess I need more practice. " | Read more » | over 11 years ago | |||
| cfastie | "This is some of the best information I've seen posted here about how the Public Lab spectrometer might be used to identify this type of environment..." | Read more » | over 11 years ago | |||
| cfastie | "Both timelapse programs allow selection of any available resolution including 1600x1200. The image quality I was getting from the lens did not see..." | Read more » | over 11 years ago | |||
| cfastie | "Mat, Can I ignore the red wire on the Sanm plug? The number 5 one labeled SWELD Ground? Or should I connect it to the wirey stuff surrounding the f..." | Read more » | over 11 years ago | |||
| cfastie | "Yes, finally I can comment! Were you able to flatten out the film filter which looks a bit buckled in the photo? The NIR image looks a little out ..." | Read more » | over 11 years ago | |||
| cfastie | "Here is a gritty report of some "activists" exploring the new oil pond in Mayflower. Although images of oiled birds have been a staple of media rep..." | Read more » | over 11 years ago | |||
| cfastie | "Thanks Pat (It's like Deja Vu). Jeff, I'm not sure I got a notification of your comment. But I might be confused. There are two very similar plan..." | Read more » | over 11 years ago | |||
| cfastie | "This is really interesting. In the photograph of the three test tubes, which drink is which? (you can enter a caption) In the set of three spectr..." | Read more » | over 11 years ago | |||
| cfastie | "Nice project. You say you measured absorbance at 500 nm in all your samples, but I noticed that your spectra were not calibrated -- there is no nm..." | Read more » | over 11 years ago | |||
| cfastie | "This was a good project. Take a look at this figure of a spectrum of a fluorescent lamp: http://en.wikipedia.org/wiki/File:Fluorescent_lighting_sp..." | Read more » | over 11 years ago | |||
| cfastie | "I'm curious about how you derived your data. Did you look at the height of the green peak at about 550 nm and compare that among samples? Did you..." | Read more » | over 11 years ago | |||
| cfastie | "It's great that you learned why methyl red adds a layer of complexity to such measurements. Is this what your results look like? I guess it cert..." | Read more » | over 11 years ago | |||
| cfastie | "Dan's right that it's a monochromator in that it directs light of one color (a narrow band of wavelengths) through the sample and to the detector. ..." | Read more » | over 11 years ago | |||
| cfastie | "Excel allows nesting if statements, so: if((if(red>green,red,green))>blue,(if(red>green,red,green)),blue) should work, if you're not int..." | Read more » | over 11 years ago | |||
| cfastie | "=max(blue:red) is soo much easier. Thanks. The greater of three method seems to be useful for transmission or absorption spectra when a continuous..." | Read more » | over 11 years ago | |||
| cfastie | "Dan, you are correct that all we want to know is how the light intensity varies across the sensor where the grating has spread out the spectrum. Un..." | Read more » | over 11 years ago | |||
| cfastie | "So was Mat streaming 1600x1200 which got downsampled at the browser to 640x480? And it is now possible to do less downsampling? And if downsamplin..." | Read more » | over 11 years ago | |||
| cfastie | "I think you understand. I didn't know that Live Capture downsamples, only that there are about 550 pixels between 400 and 700 nm in the Spectral W..." | Read more » | over 11 years ago | |||
| cfastie | "That's a really good spectrum, even though it looks a little dim. There are no overexposed peaks in any channel, but if the image had been brighter..." | Read more » | over 11 years ago | |||
| cfastie | "You're right that for aerial work a 0.5 second lag is not terminal. The whole rig will move some, but the photos from the two cameras will still ov..." | Read more » | over 11 years ago |