What is Generation: Definition and 362 Discussions

A generation is "all of the people born and living at about the same time, regarded collectively." It can also be described as, "the average period, generally considered to be about 20–⁠30 years, during which children are born and grow up, become adults, and begin to have children." In kinship terminology, it is a structural term designating the parent-child relationship. It is known as biogenesis, reproduction, or procreation in the biological sciences.
Generation is also often used synonymously with cohort in social science; under this formulation it means "people within a delineated population who experience the same significant events within a given period of time". Generations in this sense of birth cohort, also known as "social generations", are widely used in popular culture, and have been the basis for sociological analysis. Serious analysis of generations began in the nineteenth century, emerging from an increasing awareness of the possibility of permanent social change and the idea of youthful rebellion against the established social order. Some analysts believe that a generation is one of the fundamental social categories in a society, while others view its importance as being overshadowed by other factors including class, gender, race, and education, among others.

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  1. S

    Generate Microwaves Using Heat: Does it Exist?

    Does a device exist which can generate microwaves using heat (e.g. hot air) as a power source?
  2. JamesU

    The next generation of MACINTOSH:

    I give to you, the apple iSuck:
  3. M

    More Thoughts on lift generation

    I recently read an article where the author stated that the momentum transferred to the air by a passing wing will eventually strike the earth, even from a high cruise altitude (in other words, out of ground effect) I have a problem with this for the following reasons, feedback would be...
  4. M

    What are the factors that contribute to lift generation in airfoils?

    I have read a number of the forums on lift generation, and I would like to add some comments for feedback. I read the forum describing lift as the centripetal force required to curve the airflow (streamlines), and I must say this makes absolute sense, I myself have always believed that...
  5. G

    How Old Are Third Generation Stars

    In the Milky Way?
  6. B

    Rate of heat generation in an electric circuit

    How can I find the rate at which heat is generated in the resister in an electric circuit connected to a 40-ohm resistor that is embedded in a .20 kg solid substance in a calorimeter. The external portion of the circuit is connected to a 60-volt power supply. I calculated the current and it is...
  7. M

    How does dynamical mass generation work in field theory?

    Can anyone tell me how dynamical mass generation works ? what is effective mass? thanks in advance matt
  8. marlon

    How does dynamical mass generation works ?

    How does dynamical mass generation works ? In QFT-textbooks, the process of dynamical mass-generation is often used. For example one gets an effective quarkmass as a solution of the Schwinger Dysonequation. This mass is dependent on the quarks momentum.The effective quarkmass as a function of...
  9. marlon

    How Is Mass Generated Dynamically in Quantum Field Theory?

    can someone help me with dynamical mass generation? In QFT-textbooks, the process of dynamical mass-generation is often used. For example one gets an effective quarkmass as a solution of the Schwinger Dysonequation. This mass is dependent on the quarks momentum. The effective quarkmass...
  10. R

    Power generation and storage

    Hi, I am unsure which forum is most appropriate for this query but i'll start here. I am interested in building a device which works on the principle of using a stationary bike to drive an electrical generator to produce electricity, and, if practical, store it efficiently. Ultimately the...
  11. T

    Next generation power reactors

    It seems pretty much a given fact that the next generation reactors after the current nuclear fission reactors will be nuclear fusion reactors. What will be the source of energy for the next generation giga, tera and petawatt reactors? Reactors which use the strong nuclear force like a...
  12. A

    Are we the first enlightened generation?

    Regardless of our particular views on science, religion, philosophy, every one of us (I include myself) seems to be convinced of a belief which, I'm afraid, lacks any substantial support. That would be the belief that we are the first generation of humans who are not deluded about the simplest...
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