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The Philosophy of Science Portal

The 'philosophy of science' is the branch of philosophy that studies the philosophical assumptions, foundations, and implications of science, including the formal sciences, natural sciences, and social sciences. In this respect, the philosophy of science is closely related to epistemology and the philosophy of language. Note that issues of scientific ethics are not usually considered to be part of the philosophy of science; they are studied in such fields as bioethics and science studies.

In particular, the philosophy of science considers the following topics: the character and the development of concepts and terms, propositions and hypotheses, arguments and conclusions, as they function in science; the manner in which science explains natural phenomena and predicts natural occurrences; the types of reasoning that are used to arrive at scientific conclusions; the formulation, scope, and limits of scientific method; the means that should be used for determining when scientific information has adequate objective support; and the implications of scientific methods and models, along with the technology that arises from scientific knowledge for the larger society.

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Selected article

Billiard balls
Determinism is the philosophical proposition that every event, including human cognition and action, is causally determined by an unbroken chain of prior occurrences. No wholly random, spontaneous, mysterious, or miraculous events occur, according to this philosophy.

The idea that the entire universe is a deterministic system has been articulated in both Western and non-Western religion, philosophy, and literature. Determinism in the West is often associated with Newtonian physics, which depicts the physical matter of the universe as operating according to a set of fixed, knowable laws. The "billiard ball" hypothesis, a product of Newtonian physics, argues that once the initial conditions of the universe have been established the rest of the history of the universe follows inevitably.

  

Selected picture

A page from Galileo's published discovery of the moons, which appeared in Sidereus Nuncius in March 1610.
Credit: NASA/JPL

It was on this page that Galileo first noted an observation of the moons of Jupiter. This observation upset the notion that all celestial bodies must revolve around the Earth. Galileo published a full description in Sidereus Nuncius in March 1610.

  

Quote

"Whether you can observe a thing or not depends on the theory which you use. It is the theory which decides what can be observed."

  

Selected biography

René Descartes
René Descartes (March 31, 1596February 11, 1650), also known as Cartesius, was a noted French philosopher, mathematician, and scientist. Dubbed the "Founder of Modern Philosophy" and the "Father of Modern Mathematics," Descartes was one of the key thinkers of the Scientific Revolution in the Western World.

Descartes is often regarded as the first modern thinker to provide a philosophical framework for the natural sciences as these began to develop. In his Meditations on First Philosophy he attempts to arrive at a fundamental set of principles that one can know as true without any doubt. To achieve this, he employs a method called methodological skepticism: he doubts any idea that can be doubted in order to acquire a firm foundation for genuine knowledge. Initially, Descartes arrives at only a single principle: thought exists. Thought cannot be separated from me, therefore, I exist. Most famously, this is known as cogito ergo sum, ("I think, therefore I am").

  

Did you know...

The EPR thought experiment, performed with electrons. A source (center) sends electrons toward two observers, Alice (left) and Bob (right), who can perform spin measurements.

  

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Philosophy of science: Biology • Chemistry • Information • Language • Logic • Mathematics (Education, Probability) • Mind (Artificial intelligence, Perception) • Physics (Space & time, Thermal & statistical physics) • Social sciences (Environment, Psychology) • Technology

Plato at the School of Athens

Epistemology: A priori and a posteriori • Analysis • Analytic-synthetic distinction • Belief • Causality • Coherentism • Constructivist epistemology • Contextualism • Descriptive knowledge • Determinism • Empiricism • Faith and rationality • Fallibilism • Foundationalism • Gettier problem • Holism • Infinitism • Innatism • Internalism and externalism • Knowledge • Objectivity • Positivism • Proposition • Rationalism • Reductionism • Regress argument • Reliabilism • Simplicity • Skepticism • Speculative reason • Theaetetus (dialogue) • Theory of forms • Theory of justification • Transcendental idealism • Truth • Uniformitarianism • Vienna Circle • Vitalism

Ontology: Being • Category of being • Change • Cogito ergo sum • Dualism • Embodied philosophy • Entity • Existence • Existentialism • Identity • Integrative level • Physical object • Properties • Reality • Relativism • Scientific realism • Subjectivism • Substance theory • Type theory • Universal • Unobservables

General: Anti-psychiatry • Commensurability • Demarcation problem • Evolution • Free will • History of science • Pseudoscience • Rhetoric of science • Scientific method • Scientism • Sociology of scientific knowledge

  

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