Scientists have detected the Doppler effect — a quirk of physics that makes an ambulance's siren change pitch as it drives by — on the scale of a single molecule. The Doppler effecthas been understood ...
Forbes contributors publish independent expert analyses and insights. I cover the history of science and exploration. Today's Google Doodle celebrates the 214th birthday of Christian Doppler, whose ...
Figure 1: Illustration of the rotational Doppler effect in the linear and nonlinear optical regime. Compared with the rapid development and applications of the rotational Doppler effect in linear ...