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Inside the NASA wind tunnel… (more photos below)

The outside of the test section is covered in acoustic insulation, and the inside with an anechoic material. The result is a very quiet environment that allows acoustic measurements. You clap in the test section and hear echos from further down the wind tunnel, but no echos from where you are standing. Here a short video of the peculiar effect…

The ceiling of this 40 x 80 foot test section is festooned with retro-reflectors that reflect light back at the source from any angle. They also reflect a unique 2D barcode of dots to calibrate images taken from a known location. You only see them when shooting with a flash… Glad I brought two cameras. =)

11 responses to “Big Mouth Science”

  1. Bruce La Fetra caught me on the gang-plank…
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    The ramp retracts, and then the door slides up from under the floor of the test section, locking into place to provide an air-tight seal.

    I caught Paul doing the the 2001 Space Odyssey Walk
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    Off in the distance, the largest vortex generators in the world. They are located immediately downstream from the test section, at the transition to the larger/slower airflow area, to keep the laminar air stream from separating from the walls.

    IMG_7601

    Then, looking back into the darkness, making the invisible visible with a 5-second exposure:

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    and in the other direction
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  2. These pillars are located immediately downstream from the test section, and were added when the wind tunnel was upgraded from 200 to 300 kt maximum. Without them, the expansion in the air flow and resulting pressure change would collapse the structure. The first pillar is protected in case anything comes loose in the test section.

  3. It will be a fun ride if someone is in a giant plastic bubble and loses his/her gravity in this.

  4. Wow! amazing place and great photo!!!

  5. or just let Tony Hawk loose in the place…..

    another view

    Rendezvous with Rama

  6. Either Tony or bubble boom bam crashes on someone or Tony or bubble takes someone on the ride. Either way the wind might feel more joyous than the Titanic version, closed eyes or open eyes.
    Does this place open to Citizen Joe or Citizen Jane, too?

  7. NASA Ames doesn’t offer public tours. As you can see, there are exceptions. Our group (LUNAR – http://www.lunar.org) is a local rocket club that launches at Ames and participates in some of NASA’s outreach efforts. A lot of our guys (and the occasional gal) design and build their own rockets, so we have an appreciation of the work and science done at NFAC. That made us an attractive exception.

  8. In that Case!

    I want to say a big THANK YOU to the LUNAR rocketeers for sharing photos of their unique insight into what goes into exploring the World beyond our own!

    On Behalf Of Regular People Everywhere,
    Kind Regards,

    thepretenda

  9. What a stunning image! I used this image on the website OnBeing.org, a national public radio program and media project. It’s generous people like you who make their work available on Flickr that adds a depth and a splendor to the work we do. Your image was included in this article at:

    http://www.onbeing.org/blog/sharon-salzberg-the-north-star-takin...

    Thank you!

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