Phenomenon
Observable event
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Common usage
In popular usage, a phenomenon often refers to an extraordinary, unusual, or notable event. According to the Dictionary of Visual Discourse:
In ordinary language 'phenomenon/phenomena' refer [sic] to any noteworthy occurrence and investigation, typically an untoward or unusual event, person or fact that is of special significance or otherwise notable.
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Philosophy
In modern philosophical use, the term phenomena means things as they are experienced through the senses and processed by the mind as distinct from things in and of themselves (noumena). In his inaugural dissertation, titled On the Form and Principles of the Sensible and Intelligible World, Immanuel Kant (1770) theorized that the human mind is restricted to the logical world and thus can only interpret and understand occurrences according to their physical appearances. He wrote that humans could infer only as much as their senses allowed, but not experience the actual object itself. Thus, the term phenomenon refers to any incident deserving of inquiry and investigation, especially processes and events which are particularly unusual or of distinctive importance.
Physiology
Science
In scientific usage, a phenomenon is any event that is observable, including the use of instrumentation to observe, record, or compile data. Especially in physics, the study of a phenomenon may be described as measurements related to matter, energy, or time, such as Isaac Newton's observations of the Moon's orbit and of gravity; or Galileo Galilei's observations of the motion of a pendulum.
In natural sciences, a phenomenon is an observable happening or event. Often, this term is used without considering the causes of a particular event. Example of a physical phenomenon is an observable phenomenon of the lunar orbit or the phenomenon of oscillations of a pendulum.
A mechanical phenomenon is a physical phenomenon associated with the equilibrium or motion of objects. Some examples are Newton's cradle, engines, and double pendulums.
List
- List of cycles
- List of effects
- List of electrical phenomena
- List of geological phenomena
- List of natural phenomena
- List of severe weather phenomena
- List of syntactic phenomena
Sociology
Group phenomena concern the behavior of a particular group of individual entities, usually organisms and most especially people. The behavior of individuals often changes in a group setting in various ways, and a group may have its own behaviors not possible for an individual because of the herd mentality.
Social phenomena apply especially to organisms and people in that subjective states are implicit in the term. Attitudes and events particular to a group may have effects beyond the group, and either be adopted by the larger society, or seen as aberrant, being punished or shunned.