Ordinarily, light transmits the same in both directions: if I can see you, you can see me. Now, however, researchers have created a device that uses travelling sound waves to break this symmetry, ...

Although few people ever get the chance to travel at the speed of sound, it is an alluring flight goal and an impressive technological feat. Though average people have flown at high speeds on ...

Upper limit: a US Navy F/A-18 travelling near the speed of sound in air. The white halo comprises water droplets that have condensed from the air because of the sudden drop in pressure behind the ...

The film "LearningAboutSound" explores the science of sound, detailing how vibrations create sound waves that travel through different mediums like air, water, and solids. It explains key concepts ...

Physics of Sound Harmonics and The Unified Theory Theoretical physicist Brian Greene, best known for his work on string theory, explains how music might have the answer we need to find a unified ...

Daniel Barenboim: Sound has several very interesting aspects, I think, worth observing. One is duration—that there is a connection between sound and time. But before that there is a connection between ...

Blowing across the top of an open, empty bottle or soda can produces a typical sound, formed when pressure waves are excited at a characteristic frequency. For an empty soda can, this so-called ...

Kristy Primeau is currently employed by the New York State Department of Environmental Conservation (DEC). DEC data was used in the article "Soundscapes in the Past: Investigating Sound at the ...