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  2. Sound particle - Wikipedia

    en.wikipedia.org/wiki/Sound_particle

    Sound particles are not molecules in the physical or chemical sense; they do not have defined physical or chemical properties or the temperature-dependent kinetic behavior of ordinary molecules. Sound particles are, then, indefinitely small (small compared to the wavelength of sound) so that their movement truly represents the movement of the ...

  3. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    Sound waves may be viewed using parabolic mirrors and objects that produce sound. [9] The energy carried by an oscillating sound wave converts back and forth between the potential energy of the extra compression (in case of longitudinal waves) or lateral displacement strain (in case of transverse waves) of the matter, and the kinetic energy of ...

  4. Sound energy - Wikipedia

    en.wikipedia.org/wiki/Sound_energy

    However, this range is an average and will slightly change from individual to individual. Sound waves that have frequencies below 16 Hz are called infrasonic and those above 20 kHz are called ultrasonic. Sound is a mechanical wave and as such consists physically in oscillatory elastic compression and in oscillatory displacement of a fluid.

  5. Ultrasound energy - Wikipedia

    en.wikipedia.org/wiki/Ultrasound_energy

    Ultrasound energy, simply known as ultrasound, is a type of mechanical energy called sound characterized by vibrating or moving particles within a medium. Ultrasound is distinguished by vibrations with a frequency greater than 20,000 Hz, compared to audible sounds that humans typically hear with frequencies between 20 and 20,000 Hz.

  6. 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 ...

  7. 50 Of The Most Fascinating, Stunning And Dangerous Natural ...

    www.aol.com/100-most-incredible-stunning-strange...

    When oxygen atoms release energy after colliding with solar particles, the sky turns red and green, while nitrogen atoms paint it purple and pink. #10 Pink Beach, Padar Island, Komodo National Park

  8. Mechanical wave - Wikipedia

    en.wikipedia.org/wiki/Mechanical_wave

    Some of the most common examples of mechanical waves are water waves, sound waves, and seismic waves. Like all waves, mechanical waves transport energy. This energy propagates in the same direction as the wave. A wave requires an initial energy input; once this initial energy is added, the wave travels through the medium until all its energy is ...

  9. NASA offers explanation for bizarre 'trumpet noise' phenomena

    www.aol.com/news/2015-05-22-nasa-attempts-to...

    Eerie noises have been recorded all over the world recently. NASA is now offering up a possible explanation. NASA offers explanation for bizarre 'trumpet noise' phenomena