Science
(from Latin: scientia meaning "knowledge") is a company that
systematically build and organize knowledge in the form tested
explanations and predictions about the universe. An
older meaning is closely related and still in use today is that of
Aristotle, for whom scientific knowledge is a reliable body of knowledge
that can be logically and rationally explained (see "History and
etymology" section below).
Since the days of classical science as a kind of knowledge is closely related to philosophy. In the modern era of the early two-word, "science" and "philosophy", sometimes used interchangeably in English. In
the 17th century, "natural philosophy" (which is today called "natural
science") began to be regarded separately from the "philosophy" in
general. However,
"science" continues to be used in a broad sense that shows that
reliable knowledge about a topic, in the same way it is still used in
modern terms such as library science or political science.
In
modern usage, the science is "often treated as synonymous with 'natural
and physical sciences', and thus limited to the branches of study
concerned with the phenomena of the material universe and their laws,
sometimes with implied exclusion of pure mathematics. This is
now the dominant sense in ordinary use. "narrow sense" science
"developed as part of the science into a different company to define"
natural law ", based on early examples such as Kepler's laws, the laws
of Galileo, and Newton's laws of motion . In this period became more common to refer to natural philosophy as the "natural sciences". During
the 19th century, the word "science" became increasingly associated
with the study of natural disciplines including physics, chemistry,
geology and biology. This
sometimes left the study of human thought and society in a linguistic
limbo, which was completed by grouping the areas of academic study as
the social sciences. Similarly,
some of the key areas of discipline and knowledge of other studies are
currently under the general rubric of "science", such as formal science
and applied science.
Wednesday, August 24, 2011
Money
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Money is any object or record that is
generally accepted as payment for goods and services and
repayment of debts in a given country or socio-economic context. The main
functions of money are distinguished as: a medium of exchange; a unit of account; a store of value; and, occasionally in the past, a standard of deferred payment.
Any kind of object or secure verifiable record that fulfills these functions
can serve as money.
Money originated as commodity money, but nearly all contemporary money systems are
based on fiat money. Fiat money
is without intrinsic use value as a physical commodity, and
derives its value by being declared by a government to be legal tender; that is, it must be accepted as a form of
payment within the boundaries of the country, for "all debts, public and
private".
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