WavesHow Doppler Radar Decodes the SkyInside the rotating dome that spots a tornado before it touches down — how a shift in the frequency of a returning microwave pulse reveals a storm's wind speed and direction, not just where the rain is falling.Open Reading Passage
WavesSound Waves & Active Noise CancellationHow can adding more sound to a noisy airplane cabin make it quieter? A close look at superposition, phase, and the inverted sound wave that flattens the constant drone of a jet engine into near silence.Open Reading Passage
