Researchers analyzed the sound recorded by the NASA Perseverance rover on Mars and published it in Nature on the 1st.[영상= NASA]
According to the National Aeronautics and Space Administration (NASA) on the 1st (local time), the Mars rover, Perseverance, analyzed the sound of video captured on Mars and found that the speed of sound is slower than that of Earth and most of the time there is deep silence. The international research team published their research results in Nature.
The harmonic sound was recorded using a microphone on a supercam mounted on the head of the Percivirence mast. According to the analysis results, Mars has a slower speed of sound than Earth, and the speed of movement varies depending on the pitch (or frequency) of Mars’ atmosphere due to the characteristics of the atmosphere. On Earth, sound typically travels at 767 mph (343 m/s), whereas on Mars, low-pitched sounds travel at regarding 537 mph (240 m/s) and high-pitched sounds at 559 mph (250 m/s).
The research team interpreted this as the effect of the speed of sound on Mars and the carbon dioxide atmosphere. According to the research team, the atmospheric pressure on Mars is more than 100 times lower than that of Earth, so the number of atmospheric molecules that can be used as a sound transmission medium is absolutely small. The carbon dioxide-rich atmosphere and low atmospheric pressure that are prevalent on Mars are also contributing factors. The research team said, “Before the study, the atmosphere of Mars was expected to affect the speed of sound, but such a phenomenon was not observed until it was actually recorded.” The treble is barely transmitted.”
Much of this recording is almost silent. “We thought the mic was out of order,” the team said. “This is because the atmosphere on Mars is thin. But the pressure on Mars changes with the seasons. It can be a little louder in the fall on Mars. We will be able to know a little more regarding the air and the weather.”
The sound team also confirmed that the Supercam microphone captured the sound of the Ingenuity, a Mars aerial reconnaissance aircraft. The research team said, “Ingenuity generates a unique bass sound at 84 Hz at 2,500 revolutions per minute.
The research team selected the actual data analysis of the Mars environment as the result of this research. Through this, the acoustic processes modeling of space environments such as Mars and Venus was established.
Meanwhile, Percivirians is a rover launched by NASA to explore Mars following Curiosity and landed on the surface of Mars on February 19 last year.
Send articles on social media
