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Today's Nerdy Curio is brought to you by 60-Second Science. Art created by Australian Aboriginal people used organic carbon-free pigments, but wasp nests above or below the art can be used for radiocarbon dating that supplies boundaries for the age of...
-- Read more on ScientificAmerican.com
Aired February 20, 2020
All 60-Second Science content is available at www.scientificamerican.com
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