Scientific method

Scientific methods or processes are considered fundamental to the scientific investigation and acquisition of new knowledge based upon physical evidence by scientific communities. Scientists use observations and reasoning to develop technologies and propose explanations for natural phenomena in the form of hypotheses. Predictions from these hypotheses are tested by experiment and further technologies developed. Any hypothesis which is cogent enough to make predictions can then be tested reproducibly in this way. Once it has been established that a hypothesis is sound (by use of the above methods), it becomes a theory. Sometimes scientific development takes place differently with a theory first being developed gaining support on the basis of its logic and principles. For example the theory of general relativity was invented, gained supporters, and only later confirmed by experiment.

Scientific method and the practice of science

The primary constraints on science are:

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• Publication, i.e. Peer review
• Resources (mostly, funding)

It has not always been like this: in the old days of the "gentleman scientist" funding (and to a lesser extent publication) were far weaker constraints.

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Both of these constraints indirectly bring in a scientific method — work that too obviously violates the constraints will be difficult to publish and difficult to get funded. Journals do not require submitted papers to conform to anything more specific than "good scientific practice" and this is mostly enforced by peer review. Originality, importance and interest are more important - see for example the author guidelines for Nature.

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Criticisms (see Critical theory) of these restraints are that they are so nebulous in definition (e.g. "good scientific practice") and open to ideological, or even political, manipulation apart from a rigorous practice of a scientific method, that they often serve to censor rather than promote scientific discovery. Apparent censorship through refusal to publish ideas unpopular with mainstream scientists (unpopular because of ideological reasons and/or because they seem to contradict long held scientific theories) has soured the popular perception of scientists as being neutral or seekers of truth and often denigrated popular perception of science as a whole.

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