27 mhz:frequency 271/2cm:wavelength,c= speed of light:priciples of am-radio(marconi)

f1-f2/wavelength=shift(doppler):video:frequency=frames per sec

27 frames per sec is video.strobe=frames /frequency=no of frames=delta time

i sec of video =27 pictures

3^4=81=3*27img_20161128_0003

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