A roller coaster track with a tall initial peak followed by a series of loops decreasing in size.
https://files.aipub.social/media_attachments/files/112/459/288/385/797/426/original/3528536301bbd0eb.jpeg
The Euthanasia Coaster is a hypothetical euthanasia machine designed as a roller coaster intended to kill its riders through prolonged cerebral hypoxia caused by extreme g-forces and inversions. It was conceived in 2010 by Lithuanian artist Julijonas Urbonas as a thought-provoking concept that blends the euphoria of an amusement park ride with the ethics of euthanasia.
https://en.wikipedia.org/wiki/Euthanasia_Coaster?wprov=sfti1#
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