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Plotting a volcano eruption halfway across the globeby cavac (Parson) |
on Jan 21, 2022 at 09:06 UTC ( [id://11140670]=perlmeditation: print w/replies, xml ) | Need Help?? |
A week or so ago there was this big volcano eruption in Tonga that created Tsunamis and such. Terrible stuff. I knew that big events like this can create pressure waves in the air that can travel across the globe. I just recently installed an air pressure sensor, a BME280 to my radio network. I had my doubts if such a cheap sensor could actually detect such faint changes in air pressure. Well, it's more sensitive than i thought Let's take a look at the relevant data:
This corresponds quite well with data released by my government. So, it turns out you can use a cheap sensor from Ebay to detect volcano eruptions (or above ground nuclear tests). Fascinating! With a network of these sensors over a larger geographic area, it should be possible to triangulate the (approximate) location of an event like that.
perl -e 'use Crypt::Digest::SHA256 qw[sha256_hex]; print substr(sha256_hex("the Answer To Life, The Universe And Everything"), 6, 2), "\n";'
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