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Ocean waves have long been seen as having huge potential as a source of renewable energy. Waves produce an estimated 50 ...
The film explains the fundamentals of acoustics, detailing how sound waves travel through air, the effects of temperature on sound speed, and the phenomenon of refraction. It describes the anatomy ...
Jiaxin Zhong does not work for ... we designed ultrasonic beams that can bend on their own. Normally, sound waves travel in straight lines unless something blocks or reflects them.
These waves travel through the air like normal sound waves but are ... It can transport sound through space silently—becoming audible only when desired. How did we do this? Normally, sound waves ...
ScientiFix, our weekly feature, offers you a summary of the top global science stories of the week, with links to their ...
These waves travel through the air like normal sound ... becoming audible only when desired. How did we do this? Normally, sound waves combine linearly, meaning they just proportionally add ...
Researchers at ETH Zurich have managed to make sound waves travel only in one direction ... "backwards" through the first waveguide, but can do so through the third waveguide.
These waves travel through the air like normal sound waves but are ... It can transport sound through space silently – becoming audible only when desired. How did we do this? Normally, sound waves ...
The researchers used two ultrasound beams at slightly different frequencies to do this. When the beams ... can bend on their own. Normally, sound waves travel in straight lines unless something ...
These waves travel through the air like normal sound ... becoming audible only when desired. How did we do this? Normally, sound waves combine linearly, meaning they just proportionally add ...
The key thing to know here is that with powered or active speakers, all you have to do is plug in the power ... The reason for this is that sound waves don’t just escape out of the front of ...
“Metasurfaces are engineered materials that manipulate wave behaviour in ways that natural materials cannot,” said Zhong. “In ...