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2. Sound - Wikipedia

   en.wikipedia.org/wiki/Sound

   Acoustics is the interdisciplinary science that deals with the study of mechanical waves in gasses, liquids, and solids including vibration, sound, ultrasound, and infrasound. A scientist who works in the field of acoustics is an acoustician , while someone working in the field of acoustical engineering may be called an acoustical engineer . [ 3 ]

3. Acoustics - Wikipedia

   en.wikipedia.org/wiki/Acoustics

   Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer.

4. Sonic boom - Wikipedia

   en.wikipedia.org/wiki/Sonic_boom

   NASA data showing N-wave signature. [ 1] A sonic boom is a sound associated with shock waves created when an object travels through the air faster than the speed of sound. Sonic booms generate enormous amounts of sound energy, sounding similar to an explosion or a thunderclap to the human ear.

5. Soundwave (Transformers) - Wikipedia

   en.wikipedia.org/wiki/Soundwave_(Transformers)

   Soundwave is a fictional robot character appearing in various Transformers continuity lines within the Transformers franchise. His most well-known disguise is that of a micro cassette recorder. Throughout most of his incarnations, he is an underlying loyal lieutenant of the Decepticon leader Megatron.

6. Physics of whistles - Wikipedia

   en.wikipedia.org/wiki/Physics_of_whistles

   A whistle is a device that makes sound from air blown from one end forced through a small opening at the opposite end. They are shaped in a way that allows air to oscillate inside of a chamber in an unstable way. The physical theory of the sound-making process is an example of the application of fluid dynamics or hydrodynamics and aerodynamics ...

7. Absorption (acoustics) - Wikipedia

   en.wikipedia.org/wiki/Absorption_(acoustics)

   An example of a material in which absorption can observed: sound absorbing foam, also known as acoustic foam. In acoustics, absorption refers to the process by which a material, structure, or object takes in sound energy when sound waves are encountered, as opposed to reflecting the energy. Part of the absorbed energy is transformed into heat ...