If shadows are created by light, how can light cast a shadow? Can light itself, perhaps from a laser, cast a shadow? It might seem like a trick question, but the answer to this is "yes."

If shadows are created by light, how can light cast a shadow?: Can light itself, perhaps from a laser, cast a shadow? It might seem like a trick question, but under certain conditions, the answer to this paradoxical question is "yes."

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