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2. Rubens tube - Wikipedia

   en.wikipedia.org/wiki/Rubens_tube

   A Rubens tube, also known as a standing wave flame tube, or simply flame tube, is a physics apparatus for demonstrating acoustic standing waves in a tube. Invented by German physicist Heinrich Rubens in 1905, it graphically shows the relationship between sound waves and sound pressure, as a primitive oscilloscope. Today, it is used only ...

3. Seismic oceanography - Wikipedia

   en.wikipedia.org/wiki/Seismic_Oceanography

   The acoustic source generates sound waves once every few seconds by releasing either compressed air or electrical charge into the sea. Most of these sound waves travel downwards towards the seabed, and a small fraction of the sound is reflected from boundaries at which the temperature or salinity of seawater changes (these boundaries are known ...

4. Sound - Wikipedia

   en.wikipedia.org/wiki/Sound

   The sound waves are generated by a sound source, such as the vibrating diaphragm of a stereo speaker. The sound source creates vibrations in the surrounding medium. As the source continues to vibrate the medium, the vibrations propagate away from the source at the speed of sound, thus forming the sound wave.

5. Speed of sound - Wikipedia

   en.wikipedia.org/wiki/Speed_of_sound

   This additional type of sound wave (additional type of elastic wave) travels only in solids, for it requires a sideways shearing motion which is supported by the presence of elasticity in the solid. The sideways shearing motion may take place in any direction which is at right-angle to the direction of wave travel (only one shear direction is ...

6. Underwater acoustics - Wikipedia

   en.wikipedia.org/wiki/Underwater_acoustics

   Output of a computer model of underwater acoustic propagation in a simplified ocean environment. A seafloor map produced by multibeam sonar. Underwater acoustics (also known as hydroacoustics) is the study of the propagation of sound in water and the interaction of the mechanical waves that constitute sound with the water, its contents and its boundaries.

7. Acoustic wave - Wikipedia

   en.wikipedia.org/wiki/Acoustic_wave

   An acoustic wave is a mechanical wave that transmits energy through the movements of atoms and molecules. Acoustic waves transmit through fluids in a longitudinal manner (movement of particles are parallel to the direction of propagation of the wave); in contrast to electromagnetic waves that transmit in transverse manner (movement of particles at a right angle to the direction of propagation ...