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A phenomenon (pl.: phenomena), sometimes spelled phaenomenon, is an observable event. [1] The term came into its modern philosophical usage through Immanuel Kant , who contrasted it with the noumenon , which cannot be directly observed.
An aurora is a natural phenomenon. A natural phenomenon is an observable event which is not man-made. Examples include: sunrise , weather , fog , thunder , tornadoes ; biological processes , decomposition , germination ; physical processes , wave propagation , erosion ; tidal flow , and natural disasters such as electromagnetic pulses ...
The phenomenon is primarily recognized in Japan, although similar concepts exist in other languages and cultures, especially South Korea. [ 8 ] [ 9 ] Estimates suggest that in Japan, half a million youths have become social recluses , [ 10 ] as well as more than half a million middle-aged individuals. [ 11 ]
Caliban has a conversation with his imaginary friends in Folger Theatre's production of Shakespeare's The Tempest.. Imaginary friends (also known as pretend friends, invisible friends or made-up friends) are a psychological and a social phenomenon where a friendship or other interpersonal relationship takes place in the imagination rather than physical reality.
Collectively, amateur astronomers observe a variety of celestial objects and phenomena sometimes with consumer-level equipment or equipment that they build themselves. Common targets of amateur astronomers include the Sun, the Moon, planets, stars, comets, meteor showers , and a variety of deep-sky objects such as star clusters, galaxies, and ...
The effects of being a latchkey child differ with age. Loneliness, boredom and fear are most common for those younger than ten years of age. In the early teens, there is a greater susceptibility to peer pressure, potentially resulting in such behavior as alcohol abuse, drug abuse, sexual promiscuity and smoking.
Neoteny is an ancient, pervasive phenomenon. In urodeles, many extant taxa are neotenic, [45] and both morphological [46] and histological data suggest that the Middle Jurassic taxon Marmorerpeton was neotenic. [47]
A phosphene is the phenomenon of seeing light without light entering the eye. The word phosphene comes from the Greek words phos (light) and phainein (to show). Phosphenes that are induced by movement or sound may be associated with optic neuritis .