On the Rebound | Science News

ADVERTISEMENT

MISSION CRITICAL

Support credible science journalism.

Subscribe to Science News today.


Feature

On the Rebound

Reversed echoes may fight disease and foster communication

By
9:43am, March 11, 2003

Imagine descending into an Alice-in-Wonderland canyon where the echo that returns when you shout "hello" sounds like "olleh." No such sound-reversal canyons exist in nature. However, physicists in Europe and the United States have recently been creating environments in the laboratory and underwater that exhibit reversed echoing. Instead of actual walls, from which only run-of-the-mill echoes would

This article is available only to subscribing members. Join the Society today or Log in.

Get Science News headlines by e-mail.

More from Science News