Comments

Author Comment Last activity Moderation
mathew "I'd put an emphasis on getting lots of orders for the mass produced versions that we get a good margin on. Can you split the difference between the..." | Read more » almost 12 years ago
mathew "I don't know if it will hold tension on a balloon-- I've been using it on kites. my next balloon flight I'm going to add a loop of line by tying a ..." | Read more » almost 12 years ago
mathew "Thanks Michele, based on your suggestion, I switched to very small carabiners sold for keychains back in April. they work great-- I've had the same..." | Read more » almost 12 years ago
mathew "I like the general flow... but it seems targeted towards a general audience (people getting their first spectrometer, intro to spectrometry) I'd me..." | Read more » almost 12 years ago
mathew "Slashdot has a lot to say about surfacestations. NOAA has a pretty good rebuttal via TapeCutter " | Read more » almost 12 years ago
mathew "That's the kingfisher! " | Read more » almost 12 years ago
mathew "looks like a fine kite-- it will probably need a long tail and needs to be turned around, so the frame is on the back of the sail material. to adj..." | Read more » almost 12 years ago
mathew "Cool Gina! You'd asked a few questions on the list about georectifying imagery that has previous aerial reference imagery . Consider using ground..." | Read more » almost 12 years ago
mathew "cool. White Star Balloons has done some great open hardware work on high altitude balloons as well. Those interested in high altitude ballooning ..." | Read more » almost 12 years ago
mathew "cool- the spars sound a little thin, I'd keep it only for light wind (sub 10mph), and add some sort of re-enforcement at the ends of the spreader s..." | Read more » almost 12 years ago
mathew "Those are some interesting problems with the reflection-- I wonder if they could be solved by switching the direction the LED points from pointing ..." | Read more » almost 12 years ago
mathew "Don, That's awesome! Jeff's sketchup files are here: http://publiclaboratory.org/notes/warren/6-12-2012/mobile-android-version-spectral-workbench " | Read more » almost 12 years ago
mathew "the first print is rarely right-- I remember buying an expensive stereolithography part several years ago and having it arrive as a thin surface sl..." | Read more » almost 12 years ago
mathew "Nice! can't wait to hear more. makes me feel like i've been wasting my time measuring things. Build questions: -- is that yellow duct tape? -- wh..." | Read more » almost 12 years ago
mathew "totally. some sort of logarithmic curve makes a lot of sense-- the curve would reflect the inaccuracy of large ranges and give more accurate adjus..." | Read more » almost 12 years ago
mathew "cool. if it's a problem, grab a few 1N4001 (or 1N4002,3,4...) diodes from radioshack or any electronics store, they're handy to have around for ju..." | Read more » almost 12 years ago
mathew "cool! the 6v signal isn't a problem for the cameras? USB is usually 5v or lower. if there's a problem, you could put a few diodes in the line to d..." | Read more » almost 12 years ago
mathew "The long hotdog balloons also bring up another great possibility-- coding ground control points via balloon animals. I look forward to matching up ..." | Read more » almost 12 years ago
mathew "the flight restrictions are going to be the same everywhere-- stay away from the airport and under 300 feet. These balloons ARE large enough to ..." | Read more » almost 12 years ago
mathew "I can do some layout work next week on the introduction to NDVI as is (converting the images to greyscale, etc.)-- i'd focus energy on the image in..." | Read more » almost 12 years ago
mathew "I'd like to see good bit of the introduction to NDVI, a quick note on hacking the cameras accompanied by this image, and something on interpreting..." | Read more » almost 12 years ago
mathew "nice jeff, that looks like the circuit diagram. Are there also some eagle files for the board? Arduino code? no rush, but it would be nice to be a..." | Read more » almost 12 years ago
mathew "I'm excited to buy these components and try out flying one-- are the some circuit diagrams around? " | Read more » almost 12 years ago
mathew "Great idea with the coded ground control points-- I attached the rendered PDFs for folks who aren't comfortable with code, and made a modified vers..." | Read more » almost 12 years ago