Learn how to do the whip in west coast swing dance from dance champion Robert Royston in this Howcast dance video.
modulation transfer function (MTF) a quantitative measure of the ability of an imaging system to reproduce patterns that vary in spatial frequency. The MTF is useful in predicting image degradation in a series of radiographic components.
Phase modulation (PM), in which the frequency of the carrier waveform is varied to reflect changes in the frequency of the data (similar but not the same as FM). Polarization modulation, in which the angle of rotation of an optical carrier signal is varied to reflect transmitted data.