http://zx81.isl.uiuc.edu/clockkit/ http://www.decagon.com.br/micro/dr-topp/ https://www.micropilot.com/pdf/isolating-components-uav-vibration.pdf

mingw

python/cpython#880 http://answers.opencv.org/question/171349/error-compiling-opencv-with-mingw32-make/ http://answers.opencv.org/question/173925/mingw-make-error-in-detection_based_trackercpp/ http://answers.opencv.org/question/134201/installation-error/ https://gist.github.com/amroamroamro/a568eb73de00ef9b92f326778666df85 boostorg/python#140 https://bugs.python.org/issue11566 -DWINCE -D_hypot=hypot -DMS_WIN64

http://docs.opencv.org/3.3.0/d3/d52/tutorial_windows_install.html#tutorial_windows_install_path

turns = (3.5 cm / FL) or to put it another way, lens rotation angle = 360 * (3.5 cm / FL)

flare

https://www.raspberrypi.org/forums/viewtopic.php?f=43&t=50382