Questions tagged [sound]
Questions relating to sounds created by or experienced in space exploration.
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How can you make a rocket quieter?
Usually during a rocket launch on Earth, lots of water is poured to decrease the sound (deluge discussed in Wikipedia's Sound suppression system) and some other methods are used.
What I am looking for ...
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Request for high quality Titan II turbopump audio
I'm making a historical spaceflight mod and I'm close to starting work on Titan II. Does anybody have high-quality audio clips of the Titan bwoop?
All I have right now are the news broadcasts for ...
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If anything, weren't the first people in orbit the first who broke the sound barrier in free fall?
Felix Baumgartner and Alan Eustace are said to have broken the sound barrier during their space jumps. But in space, there is no sound. In fact, they were still within the Earth's atmosphere so there ...
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Have astronauts ever used the helmet-to-helmet technique to talk to one another in vacuum?
Science Fiction has long written about this communication technique in vacuum: Astronauts touch their helmet against another astronaut's helmet, so that sound will transmit through that physical ...
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Ultrasonic vibrations to clean solar cells?
Could ultrasonic vibrations propagated into the solar cells be used to dislodge dust in environments like the surface of Mars or the moon?
Obviously the waves would need to be induced in the substrate ...
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Do reentering capsules always make a(n Earth-shattering ka-)boom and look like a fireball if at night? Time & epicenter predictable w/ public info?
SpaceX enjoys press.
So the unexpected events popping up in the news is good for them.
March 26, 2021:
Fire ball burning over Woodland WA- SpaceX second stage re-entry and burn up.
A ‘spectacular’ ...
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Why didn't the EDL mic record sound during the entry and descent of Perseverance?
This NASA webpage says that the EDL mic wasn't able to record sound during the descent, but has been able to record sound from the surface of Mars. So the mic is functional. But why couldn't it record ...
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Can Perseverance know which direction sound is coming from?
From the NASA website about Perseverance, the rover has two microphones on board. Can it use both microphones at the same time to pinpoint the direction a sound is coming from? Has this already been ...
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Did they figure out what caused the "high-pitched scratching noise" that Perseverance recorded with its microphone? Was it static discharge?
In NASA's SoundCloud account there is Sounds of Perseverance Mars Rover Driving – Sol 16 (16 minutes) (for example between 01:30 and ...
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Which was louder, SRBs or SSMEs?
The space shuttle's SRBs each produced ~2x the thrust of the three main engines. Which source produced the majority of the sound volume at liftoff?
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Has sound ever been used to diagnose a problem not shown by other measurements?
In a video released by NASA here, showing Perseverance recording one of Ingenuity's flights, they have the quotes:
Sound adds a new dimension to space exploration.
and
As a mechanic listens to a ...
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Till what altitude above earth sounds can be heard?
In the new video of SpaceX SAOCOM 1B launch and landing RCS thrusters and other sounds can be heard during boostback burn. Falcon 9 boostback happens at nearly 100 Km altitude. Does the air density at ...
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What sounds do astronauts hear inside their helmets during an EVA?
Besides the communications over the headsets, do astronauts hear any other sounds inside their helmets? Do they hear their own breath? Are there any mechanical sounds audible? Does the circulating ...
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Acoustics in Space
Acoustics is an important aspect of not just our architecture but how we and other deep ocean creature interact with each other and the surface. It is known to be used in submarines and other research ...
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Why don't we use sound suppression system when rocket lands propulsively?
We know that the sound suppression system (water deluge system) is used to protect the launch vehicle from the acoustic energy produced by the engines. For most of the expendable launch vehicles, it ...
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