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  2. Control of fire by early humans - Wikipedia

    en.wikipedia.org/.../Control_of_fire_by_early_humans

    Fire was an important factor in expanding and developing societies of early hominids. One impact fire might have had was social stratification. The power to make and wield fire may have conferred prestige and social position. [35] Fire also led to a lengthening of daytime activities and allowed more nighttime activities. [45]

  3. Cultural-historical activity theory - Wikipedia

    en.wikipedia.org/wiki/Cultural-historical...

    [59] [60] [12] It is based on Vygotsky's concept of mediated action and captures human activity in a triangle model that includes the subject, tool, object, rule, community, and division of labor. [12] Subjects are participants in an activity, motivated toward a purpose or attainment of the object.

  4. Fire triangle - Wikipedia

    en.wikipedia.org/wiki/Fire_triangle

    The fire triangle. The fire triangle or combustion triangle is a simple model for understanding the necessary ingredients for most fires. [1] The triangle illustrates the three elements a fire needs to ignite: heat, fuel, and an oxidizing agent (usually oxygen). [2] A fire naturally occurs when the elements are present and combined in the right ...

  5. Four stages of competence - Wikipedia

    en.wikipedia.org/wiki/Four_stages_of_competence

    In psychology, the four stages of competence, or the "conscious competence" learning model, relates to the psychological states involved in the process of progressing from incompetence to competence in a skill. People may have several skills, some unrelated to each other, and each skill will typically be at one of the stages at a given time.

  6. Humorism - Wikipedia

    en.wikipedia.org/wiki/Humorism

    The four essential elements—humors—that make up the human body, according to Hippocrates, are in harmony with one another and act as a catalyst for preserving health. [9] Hippocrates' theory of four humors was linked with the popular theory of the four elements (earth, fire, water, and air) proposed by Empedocles , but this link was not ...

  7. Human behavior - Wikipedia

    en.wikipedia.org/wiki/Human_behavior

    Outside of formal scientific inquiry, human behavior and the human condition is also a major focus of philosophy and literature. [5] Philosophy of mind considers aspects such as free will, the mind–body problem, and malleability of human behavior. [7] Human behavior may be evaluated through questionnaires, interviews, and experimental methods.

  8. Classical element - Wikipedia

    en.wikipedia.org/wiki/Classical_element

    This system consisted of the four classical elements of air, earth, fire, and water, in addition to a new theory called the sulphur-mercury theory of metals, which was based on two elements: sulphur, characterizing the principle of combustibility, "the stone which burns"; and mercury, characterizing the principle of metallic properties.

  9. Graves's emergent cyclical levels of existence - Wikipedia

    en.wikipedia.org/wiki/Graves's_emergent_cyclical...

    Graves used a variety of names for his theory during his lifetime, ranging from the generic Levels of Human Existence in his earlier work [5] to lengthy names such as Emergent Cyclical, Phenomenological, Existential Double-Helix Levels of Existence Conception of Adult Human Behavior (1978) and Emergent Cyclical Double-Helix Model of the Adult Bio-Pyscho-Social Behaviour (1981).