Philosophy Dictionary of ArgumentsHome
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| Quantities, physics: Quantities in physics are measurable properties of objects, processes or states. See also Scales, Proportions, Change, Motion, Processes, Flux, Space, Time, Spacetime, Metrisability, Measurements._____________Annotation: The above characterizations of concepts are neither definitions nor exhausting presentations of problems related to them. Instead, they are intended to give a short introduction to the contributions below. – Lexicon of Arguments. | |||
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Hennig Genz on Quantities (Physics) - Dictionary of Arguments
II 156 Quantity/physics/Genz: in the laws of nature, two types of quantities occur: (a) those defining the physical system to which the law of nature applies and (b) the descriptions of the states that the system can accept. State: e.g. law of falling bodies: is the height and speed of the centre of gravity of the body. From the values of these state variables follow their values at all times. Context: the context is the same for all masses. II 157 N.B.: this is both the precondition and consequence of the law. Independence: this independence is one of the most important laws of nature. Relativity Theory: this independence is also the basis and consequence of the general theory of relativity. >Relativity theory, >Independence. Differentiation: there is a differentiation between state variables and system parameters. >Variables, >Parameters, >States. Mathematics/Genz: mathematics means that all future values for a system can be derived from the state values. >Derivation, >Derivability. Open Systems/Genz: if a system is not complete, the requirement that mathematical laws of nature apply does not in itself have any consequences. >Systems. II 326 Continuous/discrete/Genz: in fact, even seemingly continuous quantities such as the angular momentum of a planet can only be expressed discreetly - quantized according to Planck's constant h. But this one is too small to be effective. Discreteness/Genz: discretion is the prerequisite for Wheeler's "Program of 20 questions" (Yes/No decisions). Turing maschine/Genz: for Turing machines too, the discreetness of nature is a prerequisite if everything is to be simulated by Turing machines Cf. >Analog/digital._____________Explanation of symbols: Roman numerals indicate the source, arabic numerals indicate the page number. The corresponding books are indicated on the right hand side. ((s)…): Comment by the sender of the contribution. Translations: Dictionary of Arguments The note [Concept/Author], [Author1]Vs[Author2] or [Author]Vs[term] resp. "problem:"/"solution:", "old:"/"new:" and "thesis:" is an addition from the Dictionary of Arguments. If a German edition is specified, the page numbers refer to this edition. |
Gz I H. Genz Gedankenexperimente Weinheim 1999 Gz II Henning Genz Wie die Naturgesetze Wirklichkeit schaffen. Über Physik und Realität München 2002 |
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> Counter arguments against Genz
> Counter arguments in relation to Quantities (Physics)
Ed. Martin Schulz, access date 2024-04-27