Can't see the video? Download an mp4 [10.4 MB] version of this video. Smart phones are expensive so please take care not to swing yours too close to a wall or a person or inside a sock that's almost ...

Sound is a form of energy. It is that form of energy which makes us hear. Sound wave is a vibratory disturbance in a medium which carries energy from one point to another without there being a direct ...

"Sound of siren sounds high when it approaches, it sounds low when going away" is often expressed by the word "Doppler effectIn fact, it is also used for exploring the universe. Astronomer Rad Milla ...

A video of scientists dropping ice into a really deep hole has gone viral because of the wobbly cartoon-spaceship sound the falling ice makes. Princeton University geochemist John Andrew Higgins ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. There are many laws that govern the natural world: the laws of polarity, gravity, relativity ...

On today’s episode of “For Science!” we invite a very special guest to the lab, 9 & 10 chief meteorologist Michael Stevens to discuss the often misunderstood concept of Doppler. Many believe that the ...

Queensland University of Technology provides funding as a member of The Conversation AU. When an ambulance passes with its siren blaring, you hear the pitch of the siren change: as it approaches, the ...

Though many people may hear “Doppler Radar” as tool for tracking weather systems, it is used for much more and has roots in science dating back generations. The Doppler Effect, as it is known, is also ...

The change in pitch of a sound heard by a listener when the source and observer are in relative motion to each other. As the observer and sound source come together, the perceived pitch is higher than ...

DW takes a look at the Doppler effect - the nineteenth century physics that helped researchers determine that Malaysian Airlines flight MH370 crashed into the southern Indian Ocean. The physics behind ...