As the circulat…

by codenamehkproject

As the circulating loudspeakers move towards or away from the listener, the sound waves are compressed or expanded and the pitch of the sound becomes higher or lower (depending on the relative velocity of each speaker) resulting in a tapestry of oscillating sound.

This phenomenon — known as the Doppler Effect — depends on the listener’s position, so conference visitors are invited to move underneath the installation to fully explore the variation in sound.

http://www.spacetelescope.org/announcements/ann1405/

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