[HN Gopher] The voice of Utah's arches - Ambient seismic vibrati...
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The voice of Utah's arches - Ambient seismic vibration sped up 25x
Author : NotAWorkNick
Score : 56 points
Date : 2022-03-07 20:45 UTC (2 hours ago)
(HTM) web link (geohazards.earth.utah.edu)
(TXT) w3m dump (geohazards.earth.utah.edu)
| dylan604 wrote:
| Oh, the internet!
|
| Following links at the bottom of the submitted page, there is a
| tonne of information on how this data was collected. There are
| animations of the different ways the rocks move due to the
| vibration.[0] I'm assuming the visuals are exaggerated, but
| that's just my uneducated on the subject mindset of rocks don't
| move like that.
|
| The pure science/learning/hold my beer/etc aspect of this is
| pretty awesome.
|
| [0] https://geohazards.earth.utah.edu/data/Rainbow/ms01.mp4
| ChuckMcM wrote:
| I love Arches National Park, great hikes and fabulous geology.
| Now to learn that it sings, wow.
| dylan604 wrote:
| Well, it's more like they forgot the words are just humming.
| Cerium wrote:
| I worked on a seismic monitoring system for civil engineering
| structures. We recorded data at 200 Hz (though all the
| interesting content is in the zero to 15 Hz range). Once I tried
| this experiment with some of the data from a bridge in a harbor.
| It was very cool, you could hear so much going on in the bridge.
|
| Ambient seismic vibration is something of a hidden world around
| use. With a very sensitive accelerometer you can measure the
| shaking in a concrete pad due to cars a block a way. Looking in
| the frequency domain things like when rush hour is and which day
| is the weekend pop out like a sore thumb.
| cturtle wrote:
| Strange there isn't a page for the Delicate Arch. That's got to
| be the most iconic arch in Utah. Very interesting project though!
| I think my favorite is the Rainbow Arch (not bridge). If you
| click through the links to Sketchfab there are 3D scans of the
| arches to get a better view than the pictures provide.
|
| Also, I highly recommend seeing the Arches and other landmarks in
| Southern Utah if you have the chance. Some of my favorite places
| on this planet.
| geocrasher wrote:
| This is wonderful! I can't help but to be reminded of the book
| (and excellent movie) The Hunt For Red October, where a "worm"
| drive on The Red October sounds like seismic activity, but when
| sped up is clearly mechanical. This is not he same, I know, but
| it has the same vibe.
|
| https://geohazards.earth.utah.edu/tones/BigArrowhead.html has a
| distinctly underwater sound to it.
|
| Whoever thought to do this... Kudos to you! (And I... was never
| here...)
| dylan604 wrote:
| It's similar to what the astronomy people do with the data from
| probes floating in space collect [0]. They keep trying to find
| ways to make the data interesting as opposed to just numbers in
| a spreadsheet.
|
| [0] https://www.jpl.nasa.gov/images/pia17045-voyager-captures-
| so...
| Kalanos wrote:
| going to utah for pycon. this got me stoked up on it
| seanw444 wrote:
| It's a beautiful place. It's very cold right now, though.
| babypuncher wrote:
| Pycon isn't for another 8 weeks though, at which point it
| will be the perfect time of year to go see a lot of these
| things.
| funwares wrote:
| The first arch [0] has a note that says:
|
| > _this feature and the sounds of its vibration are sacred to
| Native American Tribes of the four corners region, and they ask
| that you listen and share with according respect._
|
| Does anyone happen to know if this means they were actually
| hearing these vibrations in some way? (Only 25 times slower and
| less audible)
|
| [0] https://geohazards.earth.utah.edu/tones/RainbowBridge.html
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(page generated 2022-03-07 23:00 UTC)