APOD: Parker: Sounds of the Solar Wind (2020 Jan 21)

[APOD Robot]

Parker: Sounds of the Solar Wind

Explanation: What does the solar wind sound like? A wind of fast moving particles blows out from our Sun, and although space transmits sound poorly, particle impact and variable-field data from NASA's near-Sun Parker Solar Probe is being translated into sound. The disarming audio track of the featured video recounts several of these reverberations, including spooky-sounding Langmuir Waves (heard first), hurricane-sounding Whistler Mode Waves (heard next), and hard-to-describe Dispersive Chirping Waves (heard last). Also impressive is the video's time-lapse visual track which shows Parker's view to the side of its sun shield, and where the planets Earth, Jupiter, Mercury and Venus appear in succession, interspersed with bursts of powerful cosmic rays impacting the imager. The nature of the solar wind near Mercury is surprisingly different from near the Earth, and much study is underway to better understand the differences.

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[jks]

Does Mercury pass in front of the Milky Way in the video?

[orin stepanek]

Me wondering why the tone differs near each planet!
Oh I see[ still under study!

[neufer]

Click to play embedded YouTube video.

What does the solar wind sound like? A wind of fast moving particles blows out from our Sonny, and although space transmits sound poorly, particle impact and variable-field data from NASA's near-Sun Parker Solar Probe is being translated into sound. The disarming audio track of the featured video recounts several of these reverberations, including spooky-sounding Langmuir Waves (heard first), hurricane-sounding Whistler Mode Waves (heard next), and hard-to-describe Dispersive Cherping Waves (heard last). Also impressive is the video's time-lapse visual track which shows Parker's view to the side of its sun shield, and where the planets Earth, Jupiter, Mercury and Venus appear in succession, interspersed with bursts of powerful cosmic rays impacting the imager. The nature of the solar wind near Mercury is surprisingly different from near the Earth, and much study is underway to better understand the differences.

[pferkul]

'
"What does the solar wind sound like?" The video below gives the true answer.

Translating particle impact and variable-field data of the solar wind into "sound" is about as meaningful as translating them into Japanese.

Click to play embedded YouTube video.

[Chris Peterson]

Translating particle impact and variable-field data of the solar wind into "sound" is about as meaningful as translating them into Japanese.

I disagree. It makes as good sense to translate 1D audio frequency data into sound as it does to translate 2D radio data to visible light images. Such techniques open up to our senses things which are otherwise not detectable, despite possessing sense analogs.

[neufer]

Click to play embedded YouTube video.

Translating particle impact and variable-field data of the solar wind into "sound" is about as meaningful as translating them into Japanese.

<<sound (n.1) "noise, what is heard, sensation produced through the ear," late 13c., soun, from Old French son "sound, musical note, voice," from Latin sonus "sound, a noise." The unetymological -d was established c. 1350-1550 as part of a tendency to add -d- after -n-. Compare gender (n.), thunder (n.), jaundice (n.), spindle, kindred, and, from French powder (n.), meddle, tender (adj.), remainder.

[Boomer12k]

Amazing... "Harmony of the Spheres"... or at least one... the Sun.

:---[===] *

[neufer]

Click to play embedded YouTube video.

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The WISPR image on NASA's Parker Solar Probe captured imagery of the constant outflow of material from the Sun during its close approach to the Sun in April 2019. Credit: NASA/NRL/APL