A new generation of materials, engineered at the microscopic level, is poised to bring major advances to wireless communications, biomedical research, laser technologies, energy research, and ...

A new discovery could allow light and sound waves to be stored intact for an indefinite period of time and then direct it toward a desired location on demand. Such a development would greatly ...

So far we have only considered sound in isolation and we have seen that sound has velocity, frequency, wavelength and reduces in intensity in proportion to the square of the distance from the source.

Scientists have developed a wireless ultrasound transducer that is efficiently excited by microwaves. The result is a simple oil-filled patch that can be placed anywhere on the body. Ultrasound ...