Psychology Dictionary of Arguments

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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.

Author Concept Summary/Quotes Sources

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.
Open Systems/Genz: if a system is not complete, the requirement that mathematical laws of nature apply does not in itself have any consequences.
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

Henning Genz
Wie die Naturgesetze Wirklichkeit schaffen. Über Physik und Realität München 2002

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