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Toxic Pet Collars, Justice After Oil Spills in Nigeria, the Sounds of Mars and more

Living on Earth

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The Martian Speed of Sound on the Red Planet

Mars has a different atmosphere than earth, so that's sure to alter how sun waves move. The atmosphere of mars is roughly 90 % carbon dioxide. So only low pitched sounds would be able to travel long distances on the red planet. Low pitche noises travel at around 200 and forty meters per second while higher pitche noises clocki at 250 meters per second. This is because the carbon dioxide molecules in the atmosphere vibrate too rapidly at the higher frequencies and don't have time to slow down.

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