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A scientific theory is an explanation of an aspect of the natural world and universe that can be or that has been repeatedly tested and has corroborating evidence in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.
A scientific hypothesis must be based on observations and make a testable and reproducible prediction about reality, in a process beginning with an educated guess or thought. If a hypothesis is repeatedly independently demonstrated by experiment to be true, it becomes a scientific theory.
Phrenology – a theory of highly localised brain function popular in 19th century medicine. Homeopathy – a theory according to which a disease can be cured by infinitesimal doses of the substance that caused it; Eclectic medicine – transformed into alternative medicine, and is no longer considered a scientific theory
The English word theory derives from a technical term in philosophy in Ancient Greek.As an everyday word, theoria, θεωρία, meant "looking at, viewing, beholding", but in more technical contexts it came to refer to contemplative or speculative understandings of natural things, such as those of natural philosophers, as opposed to more practical ways of knowing things, like that of skilled ...
Scientific theory. A theory is a well-substantiated and comprehensive explanation of the reasons an observed fact takes place that way and not in another way. They may be used to make predictions, but they are not predictions themselves. It is quite a big deal for something to be accepted as a scientific theory.
The history of scientific method considers changes in the methodology of scientific inquiry, not the history of science itself. The development of rules for scientific reasoning has not been straightforward; scientific method has been the subject of intense and recurring debate throughout the history of science, and eminent natural philosophers and scientists have argued for the primacy of ...
In biology, cell theory is a scientific theory first formulated in the mid-nineteenth century, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
Philosophy of science is the branch of philosophy concerned with the foundations, methods, and implications of science.Amongst its central questions are the difference between science and non-science, the reliability of scientific theories, and the ultimate purpose and meaning of science as a human endeavour.