Researchers at ETH Zurich have managed to make sound waves travel only in one direction. In the future, this method could ...

For the first time, researchers were able to transmit, or "tunnel," sound waves across extremely small distances between two crystals in a vacuum. For the first time, scientists have shown that ...

To understand why there’s no sound in space, first consider how sound works. Sound is a wave of energy that moves through a solid, a liquid or a gas. Sound is a compression wave .

A new tool that assesses the level of danger posed by tsunamis in real-time has been made operational on a global scale.

The sound wave doesn’t hit all parts of your skin at the same time in the same way – some of the sound wave gets absorbed over here, but reflected over there, for example. So the orderly motion of the ...

Sound waves can reflect off surfaces. We hear reflected sound as an echo. Hard, smooth surfaces are particularly good at reflecting sound. This is why large, empty rooms produce lots of echoes.

Yet water doesn’t mute sound, but amplifies it. Sound waves travel 4.3 times faster underwater than they do in the air and they retain their energy for much longer.

Sound—in the form of shock waves—helps sculpt the beautiful, delicate structures of some supernova remnants, such as those seen here in a Hubble Space Telescope image of the Veil Nebula.

For the first time, researchers were able to transmit, or "tunnel," sound waves across extremely small distances between two crystals in a vacuum. When you purchase through links on our site, we ...