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Coso artifact

Coso artifact

Spark plug supposedly encased in a 500,000-year-old geode.

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Wikipedia views per dayLast 30 days 1,334

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Readers' pathsAug 2026 – Oct 2026

Readers go next to

Share of the 1,224 clicks on its links

  1. Out-of-place artifact

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  2. Concretion

    In geology, a type of compact mass.

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  3. Spark plug

    Device that generates sparks in internal combustion engines.

    6.3%

  4. Champion (spark plug)

    American brand of spark plug.

    5.5%

  5. Geode

    Hollow formation inside a rock.

    3.8%

  6. Ancient astronauts

    Pseudoscientific claims of past alien contact.

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Readers come from

Share of the 2,040 readers arriving from another article

  1. Out-of-place artifact

    Artifacts that challenge historical chronology.

    45%

  2. Baghdad Battery

    Set of artifacts claimed to be a battery.

    33%

  3. Geode

    Hollow formation inside a rock.

    12%

  4. Spark plug

    Device that generates sparks in internal combustion engines.

    5%

  5. Champion (spark plug)

    American brand of spark plug.

    3.8%