Live data from Hacker News

The voice of Utah's arches – Ambient seismic vibration sped up 25x

geohazards.earth.utah.edu

1–10 of 43 posts

Re: The voice of Utah's arches – Ambient seismic vibration sped up 25x

#3
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.

Re: The voice of Utah's arches – Ambient seismic vibration sped up 25x

#4
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

Re: The voice of Utah's arches – Ambient seismic vibration sped up 25x

#5
This is wonderful! I can't help but to be reminded of the book (and excellent movie) The Hunt For Red October, where a [edit] "caterpillar" 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...)

Re: The voice of Utah's arches – Ambient seismic vibration sped up 25x

#7
post #6
post #2

going to utah for pycon. this got me stoked up on it

It's a beautiful place. It's very cold right now, though.

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.

Re: The voice of Utah's arches – Ambient seismic vibration sped up 25x

#8
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

Re: The voice of Utah's arches – Ambient seismic vibration sped up 25x

#10

This is wonderful! I can't help but to be reminded of the book (and excellent movie) The Hunt For Red October, where a [edit] "caterpillar" 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... K…

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...

Post reply on HN