This is how geologists collect lava samples from an active volcano.
Chemical analysis of lava provides important information about activity deep inside a volcano's magma chambers.
Video credit: USGS
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@wonderofscience "If you keep picking at it, it'll never heal."
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@eedly @wonderofscience That video-especially the first part--is extremely satisfying to someone with excoriation compulsion.
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text/gemini
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