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Space - Physics and Space | | Space - Physics and Space: Encyclopedia II - Space - Physics and Space | | Space is one of the few fundamental quantities in physics meaning it can't be defined via other quantities because there is nothing more fundamental known at present. Thus, similar to the definition of other fundamental quantities (like time and mass), space is defined via measurement. Currently, the standard space interval, called a standard meter or simply meter, is defined as the distance traveled by light in a vacuum during a time i ...
See also:Space, Space - Physics and Space, Space - Measurement, Space - Astronomy and space, Space - Mathematics and space, Space - The philosophy of space, Space - The psychology of space, Space - Anxiety and space, Space - Personal space, Space - Use of space, Space - Reference | | | Space, Space - Anxiety and space, Space - Astronomy and space, Space - Mathematics and space, Space - Measurement, Space - Personal space, Space - Physics and Space, Space - Reference, Space - The philosophy of space, Space - The psychology of space, Space - Use of space, Outer space, Space exploration | | |
| | | Space: Encyclopedia II - Space - Physics and Space
Space - Physics and Space
Space is one of the few fundamental quantities in physics meaning it can't be defined via other quantities because there is nothing more fundamental known at present. Thus, similar to the definition of other fundamental quantities (like time and mass), space is defined via measurement. Currently, the standard space interval, called a standard meter or simply meter, is defined as the distance traveled by light in a vacuum during a time interval of 1/299792458 of a second (exact).
In classical physics, space is a three-dimensional Euclidean space where any position can be described using three coordinates. Relativistic physics examines spacetime rather than space; spacetime is modeled as a four-dimensional manifold, and currently, there are theories that can support even eleven-dimensional spaces.
Before Einstein's work on relativistic physics, time and space were seen as independent dimensions. Einstein's work unified the two into spacetime. In spacetime, measurements of space and time are held to be relative to velocity.
Space - Measurement
The measurement of physical space has long been important. Geometry, the name given to the branch of mathematics which measures spatial relations, was popularised by the ancient Greeks, although earlier societies had developed measuring systems. The International System of Units, (SI), is now the most common system of units used in the measuring of space, and is almost universally used within science.
Geography is the branch of science concerned with identifying and describing the Earth, utilising spatial awareness to try and understand why things exist in specific locations. Cartography is the mapping of spaces to allow better navigation, for visualisation purposes and to act as a locational device. Astronomy is the science involved with the observation, explanation and measuring of objects in outer space.
Other related archivesAirspace, Astronomy, Banach space, Cartography, Critique of Pure Reason, Earth, Earth's atmosphere, Environments, Euclidean space, Geography, Geometry, Gottfried Leibniz, Henri Poincaré, Hilbert space, Immanuel Kant, International System of Units, Isaac Newton, Karman line, Metric space, Outer space, Probability space, Projective space, Public space, Relativistic physics, Space exploration, Spatial planning, Topological space, Topology, Vector space, a priori, abstract, agoraphobia, amodal perception, ancient Greeks, anxiety, architecture, astronomy, atmospheres, bucket argument, celestial body, classical physics, claustrophobia, conceptual, coordinates, dimension, dimensions, distance traveled by light in a vacuum, events, farming, framework, fundamental, hunting, manifold, mass, mathematics, measure space, measurement, measurements, meter, metric space, number, object permanence, objects, ontological, outer space, ownership, perception, philosophers, philosophical, physics, plasma, private property, property, psychology, quantify, science, scientists, self preservation, set, spacetime, sphere-world, structure, substances, time, universe, vector space, waters
 Adapted from the Wikipedia article "Physics and Space", under the G.N U Free Docmentation License. Please also see http://en.wikipedia.org/wiki |
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