Author | Comment | Last activity | Moderation | ||
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cfastie | "Congratulations on your award. The reported stories had many layers. " | Read more » | about 9 years ago | |||
cfastie | "Those two photos have some good plant health information in them, especially the second one of tree foliage (family Anacardiaceae?). That one produ..." | Read more » | about 9 years ago | |||
cfastie | "I got a notification of this last one (7:52 AM today). It ended up in my gmail spam folder. It's the first one since Oct 15. " | Read more » | about 9 years ago | |||
cfastie | "You don't have a boat? The wind should be great out there on the lake. Or it's the perfect application for your helikite. You might need to submit ..." | Read more » | about 9 years ago | |||
cfastie | "It sounds like you found a good system. Folks have been lifting cameras with these poles for many years, and there are a lot of different types of ..." | Read more » | about 9 years ago | |||
cfastie | "Yikes, I hadn't seen the pre-built boost converter corner of ebay. That could be the source of all solutions. A lot of those output 5V for charging..." | Read more » | about 9 years ago | |||
cfastie | "This looks very promising. There are a couple of controls that might add a lot to the interpretability of your tests. 1) With the water bottle in ..." | Read more » | about 9 years ago | |||
cfastie | "Kiran, The graph is a histogram which can be made in free programs like GIMP, IrfanView, or Fiji or photo editing programs like Photoshop. Here is..." | Read more » | about 9 years ago | |||
cfastie | "Hi Ethan, Your CFL spectra look really good. It's not that common to resolve both of those green lines with a PL spectrometer, so you must have do..." | Read more » | about 9 years ago | |||
cfastie | "That's a great idea. Last week as I was driving away from the house on the way to Middlebury College to launch the Saturn V Rig at 35°, It occurred..." | Read more » | about 9 years ago | |||
cfastie | "Yes, any battery pack will work. The SkyShield has an LDO voltage regulator that can take an input from battery up to 17 volts. So it's easy to fin..." | Read more » | about 9 years ago | |||
cfastie | "The blue filter did not seem to change the photo very much. The three channels are still very similar. Even for just a leaf (marquee below) the bri..." | Read more » | about 9 years ago | |||
cfastie | "At one time the Pi NOIR camera shipped with a piece of blue filter that blocked red light. This could be used to make photos that could be transfor..." | Read more » | about 9 years ago | |||
cfastie | "Hi Kiran, The Pi NOIR camera does not have an IR block filter (NOIR = no IR). So it is a full spectrum camera. That means some NIR is captured in ..." | Read more » | about 9 years ago | |||
cfastie | "@dbenjamin You mean you hail from Planet LEAFFEST? @patcoyle I guess I will have to try the new MapKnitter feature. I couldn't get very many nadir ..." | Read more » | about 9 years ago | |||
cfastie | "If the original Snowy Sky CFL is calibrated by pinning down the 436 nm and 546 nm peaks (using a macro) it looks like this: Most of the peaks do..." | Read more » | about 9 years ago | |||
cfastie | "I got a notification of this because I now monitor the Spam folder of my gmail account. Did gmail change its policy or did Public Lab change its no..." | Read more » | about 9 years ago | |||
cfastie | "That's a very important observation. Had I originally calibrated this spectrum on the 436 line and the 611 line (instead of 405 and 650), all the o..." | Read more » | about 9 years ago | |||
cfastie | "Hi Gwill, there do seem to be a lot of terbium peaks. I have not yet figured out how to know which of those peaks are expected in the light from a ..." | Read more » | about 9 years ago | |||
cfastie | "@icarito Thanks for the tip. On September 20, gmail started to collect the notifications in the Spam folder. I had checked the gmail "Junk E-mail" ..." | Read more » | about 9 years ago | |||
cfastie | "Now there is a new set of references. A newly corrected image (background) of the diffraction pattern of Snowy Sky CFL with emission lines shifte..." | Read more » | about 9 years ago | |||
cfastie | "@icarito I did not receive a notification. " | Read more » | about 9 years ago | |||
cfastie | "Correcting the diffraction pattern was done this way: marquee select lines and translate them left and right? This was done in the Photoshop file..." | Read more » | about 9 years ago | |||
cfastie | "I did a check on the files I attached to the last comment and they are not as precise as I thought they would be. A graph of the data file of int..." | Read more » | about 9 years ago |