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An allegedly 500,000-year-old rock is discovered near Olancha, California, US, that appears to anachronistically encase a spark plug.
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Coso artifact
Spark plug supposedly encased in a 500,000-year-old geode
The Coso artifact is an object claimed by its discoverers to be a spark plug encased in a geode. Discovered on February 13, 1961, by Wallace Lane, Virginia Maxey, and Mike Mikesell while they were prospecting for geodes near the town of Olancha, California, it has long been…Source: Wikipedia (CC BY-SA)
Olancha, California
Census-designated place in California, United States
Olancha is a census-designated place in Inyo County, California, United States. Olancha is located on U.S. Route 395 in California, 37 miles (60 km) south-southeast of Independence. As of the 2020 census, the population was 131, down from 192 at the 2010 census.Source: Wikipedia (CC BY-SA)
Spark plug
Device that generates sparks in internal combustion engines
A spark plug is a device for delivering electric current from an ignition system to the combustion chamber of a spark-ignition engine to ignite the compressed fuel/air mixture by an electric spark, while containing combustion pressure within the engine. A spark plug has a metal…Source: Wikipedia (CC BY-SA)