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Music

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The James Webb Space Telescope's
mirrors and instruments, 

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kept clean inside a four story
tall tent,

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are moved into the Acoustic Test
Chamber at ... 

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NASA's Goddard Space Flight
Center, in Greenbelt MD.


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Engineers blast the telescope
with acoustic energy, which ...

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results in vibrations similar to
what it will ... 

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experince during launch.

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The telescope is tested to
frequencies as low as 20 Hertz 

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and as high as 2800 Hertz ... 

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and sound pressures as high as
142 decibels.

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This is louder than the decibel
level ... 

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of a jet engine at takeoff.

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Instant hearing damage would
occur at this level without ...


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hearing protection. Eardrum
rupture occurs at 150 decibels.

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Engineers use this test to
ensure the Ariane 5 rocket's ...

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sound will not damage Webb's
structure ... 

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or systems during launch.

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Music

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Beep ... Beep ... Beep