Sunday, May 22, 2022
HomeTechNASA Says Sound Waves Journey Slowly on Mars Than on Earth

NASA Says Sound Waves Journey Slowly on Mars Than on Earth


A examine of various sounds captured by NASA’s Perseverance rover on Mars has revealed that sound waves behave in a different way on the Pink Planet. The examine discovered that sound travels rather more slowly on Mars than it travels on Earth. It additionally behaved in some sudden ways in which might have penalties in organising communications platforms on Mars when people colonise it. Nonetheless, the slowing down of sound waves is sensible because the pace of sound principally depends upon the density of the environment sound waves are travelling. The Martian environment is thinner than Earth’s and therefore the motion of sound waves slows down.

Sound sometimes travels at 343 metres per second on Earth. However they journey a lot quicker, at 1,480 metres per second, within the a lot denser medium of water, some research have acknowledged. So, sound waves achieve pace as they transfer right into a denser medium and decelerate after they transfer right into a thinner medium. Mars has an environment that’s over 100 instances thinner than that of Earth and is made up of principally carbon dioxide.

NASA has launched an audio ensemble of the sounds captured on Mars. You may hearken to them beneath:

The examine of sound waves from Mars additionally revealed that totally different sounds behave in a different way within the Martian environment. Low-pitched sounds journey at about 240 metres per second, whereas higher-pitched sounds transfer at 250 metres per second on the Pink Planet. This phenomenon has by no means been skilled earlier than, NASA scientists mentioned. The scientists have revealed their findings within the Nature journal this week.

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“Mars could be very quiet due to low atmospheric stress,” mentioned examine co-author Baptiste Chide. “However the stress modifications with the seasons on Mars.” This implies Mars might get noisier within the Martian autumn months to come back.

The Perseverance rover and its accompanying Ingenuity helicopter have been launched in July 2020 they usually landed on Mars in February the subsequent 12 months. It’s in search of indicators of historic lives on the Pink Planet.


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