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The Antikythera mechanism (Fragment A – front) The Antikythera mechanism (Fragment A – back)
The double-slit experiment, sometimes called Young 's experiment (after Young's interference experiment ), is a demonstration that matter and energy can display characteristics of both waves and particles , and demonstrates the fundamentally probabilistic nature of quantum mechanical phenomena.
Key: The essential Olympians ' names are given in bold font .
Grey goo (alternatively spelled gray goo ) is a hypothetical end-of-the-world scenario involving molecular nanotechnology in which out-of-control self-replicating robots consume all matter on Earth while building more of themselves, [ 1 ] [ 2 ] a scenario that has been called ecophagy ("eating the environment"). [ 3 ] The original idea assumed machines designed to have this capability, while popularizations have assumed that machines might somehow gain this capability by accident. Self-replicating machines of the macroscopic variety were originally described by mathematician John von Neumann , and are sometimes referred to as von Neumann machines .
The Phaistos Disc (also spelled Phaistos Disk , Phaestos Disc ) is a disk of fired clay from the Minoan palace of Phaistos on the Greek island of Crete , possibly dating to the middle or late Minoan Bronze Age ( 2nd millennium BC ).
Top: Large, colorful Toynbee tile found in downtown Washington, D.C.; Bottom: Closeup of its bottom tab, apparently mentioning the U.S.S.R. , which had been gone for years by the time this photo was taken.
The Voynich manuscript , described as "the world's most mysterious manuscript", [ 3 ] is a work which dates to the early 15th century (1404–1438), possibly from northern Italy. [ 1 ] [ 2 ] It is named after the book dealer Wilfrid Voynich , who purchased it in 1912. Some pages are missing, but the current version comprises about 240 vellum pages, most with illustrations.
A brain transplant or whole-body transplant is a hypothetical operation in which the brain of one organism is transplanted into the body of another.