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Social cycle theories are among the earliest social theories in sociology.Unlike the theory of social evolutionism, which views the evolution of society and human history as progressing in some new, unique direction(s), sociological cycle theory argues that events and stages of society and history generally repeat themselves in cycles.
Animal migration – Avalanche – Carbon cycle – Climate change – Climate change and agriculture – Climate model – Climate oscillation – Clock of the Long Now – Ecology – El Niño/La Niña – Endometrium – Environmental geography – Global cooling – Global warming – Historical temperature record – Hydrogen cycle – Ice age – Transhumance – Milankovitch cycles ...
Generational change drives the cycle of turnings and determines its periodicity. As each generation ages into the next life phase (and a new social role) society's mood and behavior fundamentally change, giving rise to a new turning. Therefore, a symbiotic relationship exists between historical events and generational personas. Historical ...
Recurrent evolution also referred to as repeated [1] [2] or replicated [3] evolution is the repeated evolution of a particular trait, character, or mutation. [4] Most evolution is the result of drift, often interpreted as the random chance of some alleles being passed down to the next generation and others not.
It was finally identified that the cycle of high and low catches ran over approximately a ten-year period. The most well known example of creatures which have a population cycle is the lemming. [3] The biologist Charles Sutherland Elton first identified in 1924 that the lemming had regular cycles of population growth and decline. When their ...
An early example of a time loop is the 1915 Russian novel Strange Life of Ivan Osokin, where the main character gets to live his life over again but struggles to change it the second time around. [3] The episode "The Man Who Murdered Time" in the radio drama The Shadow was broadcast on 1 January 1939, about a dying scientist who invents a time ...
Examples include circannual or annual cycles that govern migration or reproduction cycles in many plants and animals, or the human menstrual cycle. Ultradian rhythms , which are cycles shorter than 24 hours, such as the 90-minute REM cycle , the 4-hour nasal cycle , or the 3-hour cycle of growth hormone production.
It holds that because human nature does not change, the same sort of events can recur at any time." [ 15 ] "Other minor cases of recurrence thinking", he writes, "include the isolation of any two specific events which bear a very striking similarity , and the preoccupation with parallelism , that is, with resemblances, both general and precise ...