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an observable fact or event; in philosophy the definitions and uses of the term have varied. In the philosophy of AristotleAristotle
, 384–322 B.C., Greek philosopher, b. Stagira. He is sometimes called the Stagirite. Life

Aristotle's father, Nicomachus, was a noted physician. Aristotle studied (367–347 B.C.
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 phenomena were the objects of the senses (e.g., sights and sounds), as opposed to the real objects understood by the mind. Later, phenomena were considered the observed facts and were contrasted with the theories used to explain them. Modern philosophers have used "phenomenon" to designate what is apprehended before judgment is applied. For Immanuel KantKant, Immanuel
, 1724–1804, German metaphysician, one of the greatest figures in philosophy, b. Königsberg (now Kaliningrad, Russia). Early Life and Works
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 a phenomenon was the object of experience and was the opposite of a noumenonnoumenon
, in the philosophical system of Immanuel Kant, a "thing-in-itself"; it is opposed to phenomenon, the thing that appears to us. Noumena are the basic realities behind all sensory experience.
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, the thing-in-itself, to which Kant's categories did not apply.



(1) An uncommon object or events; a rarity.

(2) A philosophical concept denoting an object or event that is perceivable by the senses. Aristotle used the term “phenomenon” to mean that which is apparent or illusory. G. W. von Leibniz, who defined phenomena as facts known through experience, distinguished a category of “real, well-established phenomena.” For G. Berkeley, D. Hume, and the advocates of positivism and Machism, phenomena are the data of consciousness—the empirical elements, in the subjective idealist sense—that constitute the only existing reality. According to I. Kant, a phenomenon is anything that can possibly be the object of experience; phenomena are juxtaposed to noumena, or “things in themselves.” In the phenomenology of E. Husserl, phenomena are directly given to consciousness as the contents of intentional acts.



a. the object of perception, experience, etc.
b. (in the writings of Kant) a thing as it appears and is interpreted in perception and reflection, as distinguished from its real nature as a thing-in-itself
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It's not that Weiser is all that fascinated by magnetism as a physical phenomenon.
That's the physical phenomenon that Heller models in computers and portrays with his prints, which now go for hundreds of dollars or more.
The pioneering scientists' contributions to the theory of superconductors and superfluids have yielded deep understanding of physical phenomenon that were once both mysterious and perplexing to the scientific community.
Words such as "rich," "bright" or "brilliant," which sometimes are used to describe sound, are somewhat subjective, but a physical phenomenon occurs when the hammer strikes the string, creating different qualities or timbres of sound.
They speculated that the notch was the result of either a subclinical pathologic change or some other physical phenomenon.
Nevertheless, I believe a materialist can see that consciousness, as a strictly physical phenomenon instantiated by the brain, creates a world subjectively immune to its own disappearance.