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  2. Speed of sound - Wikipedia

    en.wikipedia.org/wiki/Speed_of_sound

    The speed of sound is the distance travelled per unit of time by a sound wave as it propagates through an elastic medium. More simply, the speed of sound is how fast vibrations travel. At 20 °C (68 °F), the speed of sound in air, is about 343 m/s (1,125 ft/s; 1,235 km/h; 767 mph; 667 kn), or 1 km in 2.91 s or one mile in 4.69 s.

  3. The Sun is really loud — but if we could hear it, what would ...

    www.aol.com/news/2018-02-26-the-sun-is-really...

    The Sun is said to be extremely noisy, but we can’t hear it since sound doesn’t travel through space. Scientists at the University of Sheffield decided to use vibrations within our star's ...

  4. Sound - Wikipedia

    en.wikipedia.org/wiki/Sound

    When sound is moving through a medium that does not have constant physical properties, it may be refracted (either dispersed or focused). [5] Spherical compression (longitudinal) waves. The mechanical vibrations that can be interpreted as sound can travel through all forms of matter: gases, liquids, solids, and plasmas.

  5. Chinese scientist hears 'knocking sound' in space - AOL

    www.aol.com/news/2016-12-01-chinese-scientists...

    There is a notion that space is completely silent, for there is no medium for sound to travel. The BBC reports, however, that there are "sounds of space." Other astronauts have had similar ...

  6. Radio wave - Wikipedia

    en.wikipedia.org/wiki/Radio_wave

    Radio waves were first predicted by the theory of electromagnetism that was proposed in 1867 by Scottish mathematical physicist James Clerk Maxwell. [5] His mathematical theory, now called Maxwell's equations, predicted that a coupled electric and magnetic field could travel through space as an "electromagnetic wave".

  7. Listen to the mysterious noises scientists hear inside of a star

    www.aol.com/news/2016-06-09-listen-to-the...

    The sounds could potentially help astronomers and physicists unlock the secrets to how galaxies form and evolve. It's all just a matter of time before scientists can record the sounds inside your ...

  8. Cosmic noise - Wikipedia

    en.wikipedia.org/wiki/Cosmic_noise

    Cosmic noise, also known as galactic radio noise, is a physical phenomenon derived from outside of the Earth's atmosphere.It is not actually sound, and it can be detected through a radio receiver, which is an electronic device that receives radio waves and converts the information given by them to an audible form.

  9. NASA recorded what space sounds like and it's really spooky - AOL

    www.aol.com/2016-04-11-nasa-recorded-what-space...

    The sounds of space are empty, eerie and spectral. They're probably comparable to the sonic experience of being very deep underwater. NASA recorded what space sounds like and it's really spooky