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Skepticism, also spelled scepticism in British English, is a questioning attitude or doubt toward knowledge claims that are seen as mere belief or dogma. [1] For example, if a person is skeptical about claims made by their government about an ongoing war then the person doubts that these claims are accurate.
Philosophical skepticism (UK spelling: scepticism; from Greek σκέψις skepsis, "inquiry") is a family of philosophical views that question the possibility of knowledge. [1] [2] It differs from other forms of skepticism in that it even rejects very plausible knowledge claims that belong to basic common sense.
Scientific skepticism differs from philosophical skepticism, which questions humans' ability to claim any knowledge about the nature of the world and how they perceive it, and the similar but distinct methodological skepticism, which is a systematic process of being skeptical about (or doubting) the truth of one's beliefs. [2]
Pyrrhonism is an Ancient Greek school of philosophical skepticism which rejects dogma and advocates the suspension of judgement over the truth of all beliefs. It was founded by Aenesidemus in the first century BCE, and said to have been inspired by the teachings of Pyrrho and Timon of Phlius in the fourth century BCE.
Scratches, represented by triangular-shaped grooves, make the surface area greater. Specific surface area (SSA) is a property of solids defined as the total surface area (SA) of a material per unit mass, [1] (with units of m 2 /kg or m 2 /g). Alternatively, it may be defined as SA per solid or bulk volume [2] [3] (units of m 2 /m 3 or m −1).
This list of books about skepticism is a skeptic's library of works centered on scientific skepticism, religious skepticism, critical thinking, scientific literacy, and refutation of claims of the paranormal. It also includes titles about atheism, irreligion, books for "young skeptics" and related subjects. It is intended as a starting point ...
As early as 1693 Christiaan Huygens found that the volume and the surface area of the pseudosphere are finite, [3] despite the infinite extent of the shape along the axis of rotation. For a given edge radius R, the area is 4πR 2 just as it is for the sphere, while the volume is 2 / 3 πR 3 and therefore half that of a sphere of that ...
A sphere of radius r has surface area 4πr 2.. The surface area (symbol A) of a solid object is a measure of the total area that the surface of the object occupies. [1] The mathematical definition of surface area in the presence of curved surfaces is considerably more involved than the definition of arc length of one-dimensional curves, or of the surface area for polyhedra (i.e., objects with ...