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#auroras #solar-storms #historical-records #carbon-14 #dendrochronology #old-growth-forests #timber-preservation
OMG science
fromwww.scientificamerican.com
16 hours ago

Medieval poets wrote about auroras. Their work is providing clues to the solar cycle

Three consecutive nights of auroras in 1204 over Kyoto were linked to solar events traced through tree rings and historical literature.
Science
fromState of the Planet
7 months ago

Rings of Time: Preserving the Past and Seeking Clues to the Future in Urban Timber

Old timbers rescued from demolitions preserve tree-ring records that reveal past climate, ecological history, and centuries of human activity.
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