We can’t hear all levels of sounds. Sound waves with very high frequencies are called ultrasound and our ears can’t detect them. Ultrasound waves have multiple uses including: detecting ...

It was the first time these sound waves had been extracted and made audible ... ever detected by humans – well below the ...

P-waves can move faster through the ground than the air, but not all of this energy is in the range of human hearing. When the sound waves are in the audible frequency range, some people may hear ...

Researchers have taken a novel approach to studying the interaction between certain topological metamaterials and sound wave ...

So sound waves move slower through it ... What questions do you have about the human body? Let us know in the comments and thanks for watching. More from News A triangle pointing right which ...

Narrator: Because the rattle is hollow inside, sound waves can bounce off the walls ... For comparison, the human eye blinks 15 to 20 times a MINUTE! By vibrating so quickly, the rattle makes ...

And an "overwhelming body of evidence" has revealed the harm human-made noise does to marine ... and his colleagues point out that sound waves can travel thousands of miles through the ocean.

By James WoodfordA rapid form of 3D printing that uses sound and light could one day produce copies of human organs made from ...

It is the equivalent of the human sound box. The syrinx contains membranes which vibrate and generate sound waves when air from the lungs is passed over them. The muscles of the syrinx control the ...

Perhaps the best catalog that exists is from researchers in Mexico, who have systematically recorded dogs in their homes in specific situations, getting them to bark by, say, knocking on a door or ...