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society will attempt to influence its weather by seeding clouds with dry ice
particles to bring about rain. Another culture may offer sacrifices to the gods in
order to end a long period of drought.
Each generation and each year most human cultures change and expand
through the process of innovation and diffusion. An innovation is the process of
introducing an idea or object that is new to culture. There are two forms of
innovation: a discovery and an invention. A discovery involves making known
or sharing the existence of an aspect of reality. The identification of a new moon
of Saturn is an act of discovery. By contrast, an invention results when existing
cultural items are combined into a form that did not exist before. The bow and
the arrow, the automobile and the television are all examples of inventions, as
are Protestantism and democracy. The term diffusion refers to the process by
which a cultural item is spread from group to group or from society to society,
i.e. to the process of adopting ideas, technology and customs from other
cultures. For example, breakfast cereal comes originally from Germany, candy
from the Netherlands, chewing gum from Mexico and the potato chip from the
America of the Indians. Diffusion can occur through a variety of means, among
them exploration, military conquests, missionary work, the influence of the mass
media and tourism.
Sociologists make a useful distinction between elements of material .and
nonmaterial culture. Material culture refers to the physical or technological
aspects of our daily lives including food items, houses, factories and raw
materials. Nonmaterial culture refers to ways of using material objects and to
customs, beliefs, philosophies, governments and patterns of communications.
Generally, the nonmaterial culture is more resistant to change than the
material culture is. Therefore, foreign ideas are viewed as more threatening to a
culture than foreign products are. We are more willing to use technological
innovations that make our lives easier than ideologies that change our way of
seeing the world.
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