Comments

Author Comment Last activity Moderation
cfastie "That is so much better than any present I have received for a very long time. Don't forget to let it warm up before use! And may you never learn wh..." | Read more » over 11 years ago
cfastie "That's a challenge if smartphone cameras are not very sensitive to low light. More tests are called for, but I think the cheap diffraction grating..." | Read more » over 11 years ago
cfastie "Incredible. I wish I was closer so I could help. It looks like lots of fun. Nice sticker. " | Read more » over 11 years ago
cfastie "Alex - That's an good point that some smart phones do HDR. To improve the chances of great results, users of the smart phone spectrometer could tak..." | Read more » over 11 years ago
cfastie "Hi Alex, I haven't experimented much with webcams yet, so I don't know the answer. I do know that a narrow slit is critical for precisely identif..." | Read more » over 11 years ago
cfastie "I assume that a lot of people who will receive these in the next month or so have iPhones. Is there a target date for the iOS app? " | Read more » over 11 years ago
cfastie "Really nice work. I guess this will be printed in white on black paper. Or will the pattern and the instructions be printed separately? " | Read more » over 11 years ago
cfastie "Calibration gardens – flying over a soybean field is a lot easier than flying over a forest. Soybeans are also a lot more homogeneous, and are easi..." | Read more » over 11 years ago
cfastie "The three channels in an NIR photo will record different proportions of NIR wavelengths (e.g., 700-1000 nm) because the Bayer filters are passing d..." | Read more » over 11 years ago
cfastie "Ned, This is a dramatic result. It is startling to see that the color can be completely removed by applying a custom white balance, and also that ..." | Read more » over 11 years ago
cfastie "Andy, That's a really good suggestion. You can see what this research note might look like to those who are red-green colorblind here (the gigapan ..." | Read more » over 11 years ago
cfastie "Pat, they eventually captured enough hydrogen to lift the bag. The main problem with their setup was that it did not pressurize. The goal is to for..." | Read more » over 11 years ago
cfastie "Hi Sara, The NDVI analysis did not get very far because these images did not register very well. Without good alignment of the NIR and visible imag..." | Read more » over 11 years ago
cfastie "Thanks Pat. I just edited the post above to indicate that you don't really need Google Earth Pro to do this type of thing. The free version will ..." | Read more » over 11 years ago
cfastie "Hi Ned, We have the data in pretty good shape in a Google Doc: https://docs.google.com/spreadsheet/ccc?key=0Aj92oPqI2WPMdFQ3Y1k2bVExNmpLbTRwNkEyWmx..." | Read more » over 11 years ago
cfastie "Jeff, I'm glad you like the music. Maybe we can have a sing-a-long in Cocodrie. The last two weeks of rain has popped up mushrooms everywhere arou..." | Read more » over 11 years ago
cfastie "Scott, if you inflate the balloons only halfway they might last longer. If that makes them too small, use two or more. The number of balloons cou..." | Read more » over 11 years ago
cfastie "I'd love to see an exploded view so I can see what's what. I guess the web cam is underneath? " | Read more » over 11 years ago
cfastie "Having a choice of full-fledged computers for $30 is kind of astounding. LEAFFEST will be a really good opportunity for me to learn which will be m..." | Read more » over 11 years ago
cfastie "Except for the fact that their web site is more confusing than the plot of Lost, MaxMax is a really interesting company. The trick to the one cam..." | Read more » over 11 years ago
cfastie "I like the direction the rewards are going. The "whole shooting match" might be unnecessary. If someone wants two spectrometers, can't they just ..." | Read more » over 11 years ago
cfastie "Sorry to hear about the out of focus shots. I have finished more than one KAP flight only to learn that the camera was focused at 12 feet. This i..." | Read more » over 11 years ago
cfastie "Yes, I must be right at the limit for voltage that the cameras can tolerate. One of the diodes on the MK111 (D3) apparently drops the voltage from..." | Read more » almost 12 years ago
cfastie "I got 504 gateway errors while posting this both times. I posted a new note describing the successful modification of the MK111 timer following Ra..." | Read more » almost 12 years ago