501,029 views
The Doppler Effect is the apparent change in the frequency of waves (both mechanical and electromagnetic) when the source is moving relative to an observer. It is also the reason why the sound of an ambulance siren appears to change from higher to lower when it moves and you are standing still. And it is also the reason why the light from stars and galaxies shifts to the red - redshift - or to the blue - blueshift - when we analyze their spectra. Become a member of our channel to help keep the videos on air! http://youtube.com/cienciatododia/join My social networks: /pedroloos /pedroloos Basic Physics Course of Ciência Todo Dia Chapter 7, Episode 3. Direction: Pedro Loos Editing and Animation: Caique Oliveira Art Direction: Eduardo Soldatti Script: Hítalo Mendes and Pedro Loos Our podcast: http://anchor.fm/sinapse E-mail: [email protected]