9/11 Artifacts at JFK Airport

Marianna says:

“Artifact:” 1. An object produced or shaped by human craft, especially a tool, weapon, or ornament of archaeological or historical interest.
2. Something viewed as a product of human conception or agency rather than an inherent element: “The very act of looking at a naked model was an artifact of male supremacy” (Philip Weiss).
3. A structure or feature not normally present but visible as a result of an external agent or action, such as one seen in a microscopic specimen after fixation, or in an image produced by radiology or electrocardiography.
4. An inaccurate observation, effect, or result, especially one resulting from the technology used in scientific investigation or from experimental error: The apparent pattern in the data was an artifact of the collection method.

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“Evidence:” 1. A thing or things helpful in forming a conclusion or judgment: The broken window was evidence that a burglary had taken place. Scientists weigh the evidence for and against a hypothesis.
2. Something indicative; an outward sign: evidence of grief on a mourner’s face.
3. Law: The documentary or oral statements and the material objects admissible as testimony in a court of law.

(Definitions borrowed from The Free Dictionary by Farlex)