What is Science

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What is Science

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The word "science" means "knowledge." The baseline definition of

"science," then, is human knowledge.

Empirical thought is founded on the idea that all knowledge of the

world comes from sensory experience; this sensory experience can be

trusted to give us an accurate picture of the world. From sensory

experience, we can derive the principles whereby the world works by

observing phenomena repeatedly and in controlled circumstances.

Empiricism, then, is knowledge that is derived through experience.

Empiricism, then, is knowledge that is derived through experience

Science is the concerted human effort to understand, or to understand

better, the history of the natural world and how the natural world

works, with observable physical evidence as the basis of that

understanding1.

If scientists are constantly trying to make new discoveries or to

develop new concepts and theories, then the body of knowledge produced

by science should undergo constant change. Such change is progress

toward a better understanding of nature. It is achieved by constantly

questioning whether our current ideas are correct. As the famous

American astronomer Maria Mitchell (1818-1889) put it, "Question

everything".

The result is that theories come and go, or at least are modified

through time, as old ideas are questioned and new evidence is

discovered. In the words of Karl Popper, "Science is a history of

corrected mistakes", and even Albert Einstein remarked of himself

"That fellow Einstein . . . every year retracts what he wrote the year

before".

Science is the observation of natural events and conditions in order

to discover facts about them and to formulate laws and principles

based on these facts.

Academic Press Dictionary of Science & Technology

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Science is an intellectual activity carried on by humans that is

designed to discover information about the natural world in which

humans live and to discover the ways in which this information can be

organized into meaningful patterns. A primary aim of science is to

collect facts (data).

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