Voices carry, reflect off objects and create echoes. Most people rarely hear the echoes; instead they only process the first sound received. For the hard of hearing, though, being in an acoustically ...

IN GREEK mythology, Echo was a mountain nymph who lost her voice and was condemned to repeat only the words of others. Now science is poised to silence the sprite completely. A group of physicists, ...

Vision is the predominant sense in humans, and we heavily rely on our sight for understanding our surroundings. As a result, image recognition-based technologies have been rapidly developed and are ...

A new study identified eight previously unknown echoes from nearby black hole X-ray binary systems in the Milky Way and turned those echoes into sound waves. When you purchase through links on our ...

A REMARK has just occurred to the writer, on turning over the account of cognate phenomena in Rayleigh's “Theory of Sound” (vol. 2, § 270), which seems to be of weight in this subject and may indeed ...

Bats, dolphins and even some blind people use echoes to create a mental 3D map of their environment and where they are in it. A smartphone’s chirp could soon let us do the same. Ivan Dokmanic and ...