Bat echolocation

Bats are found throughout the world, except in areas of extreme cold. New Zealand has three species of endemic bats...

Ultrasound is a medical imaging technique that uses high frequency sound waves and their echoes. The sound waves are above...

Sound is a form of energy that is caused by the vibration of matter. Sound is transmitted through waves, which...

When two or more sound waves occupy the same space, they affect one another. This is known as sound wave...