Ships generate sound primarily by propeller action, hull-mounted machinery, and hydrodynamic flow over the hull and the flexing of the hull. Over 90 percent of world trade is transported by ship, ...

The Mysterious Sound. However ... of ice breaking up and cracking are dominant source of exact natural sounds in the Southern ...

Scientists have recorded young sharks making sounds for the first time, surprising researchers and challenging old beliefs.

Brown noise has a low, natural sound, so many people find it easier ... Maybe you even use pink noise, like the gentle crash of ocean waves against the shore, to get to sleep.

Researchers long believed sharks to be silent animals based on their anatomy, but unprecedented evidence shows the rig shark ...