Irish myth tells of a spear so deadly, that its deployment is certain death. Forged from the bones of sea monsters, the Gáe Bulg would send barbs through its victim’s every vein -- but only if the hero threw it with their foot. In this episode of Stuff to Blow Your Mind, Robert Lamb and Joe McCormick unravel the myth, history and science of this impractical Irish wonder weapon. (originally published 2/21/2019)

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