00:00Mars is a completely different world than our own, and a new study has found the physics of sound actually work differently there as well.
00:11By recording the sounds of the Perseverance rover's lasers taking rock and soil samples, experts have discovered the base frequencies actually travel slower through the Martian atmosphere than higher pitched ones.
00:21Meaning our voices on Mars would sound quite a bit different than they do here on Earth.
00:25Of course, we can't breathe the Martian atmosphere, but it changes our perspective on how sound propagates through different materials.
00:31Sound waves travel through more dense material quicker. However, on Mars, it frequencies over 240 hertz.
00:37The researchers found that the collision-activated vibrational modes of molecules of carbon dioxide weren't able to return to their resting state,
00:44which means higher frequency sounds travel ten times faster through the Martian atmosphere than lower ones.
00:49With the researchers writing, quote,
00:51Mars is the only terrestrial planet atmosphere in the solar system experiencing a change in speed of sound,
00:56right in the middle of the audible bandwidth.
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