|Space-time, philosophy: space time is a three-dimensional space with time as a fourth dimension. The fact that time is interpreted as a dimension distinguishes the space-time from multi-dimensional mathematical spaces, in which time plays no role and which are therefore structured differently. In particular, the space-time has no measure which can equally be used for spatial distances as well as for time measurements. See also relativity theory, four-dimensionalism, world lines.|
Books on Amazon:
Space/time/space-time continuum/RT/Russell: new determination of time and location are no longer independent of one another - if you change the type of localization, you probably also change the time interval between two events - or if you change the type of time determination, you might change the spatial distance - there is no universal time any more - only when two bodies are at rest, their proper times match. - Def clearly earlier: is an event if it can affect another - (effect). - Graphic/(s): two circles around two dots - points of intersection: at the same time - for someone in the intersection: Both events were observed - depending on whether closer to A or B, the corresponding event is observed earlier.
Def spatio-temporal distance/SR/Russell: you take the square of the distance between two events and the square of the distance that light travels in the time between the two events - then subtract the smaller of these numbers from the larger one and defins the result as the square of the distance between the two events - this distance is the same for all observers and represents a truw physical relationship between the two events, which is not the case in temporal and spatial distance - AR: the concept of distance must be further generalized.
Space-time/time/momentum/mass/RT/Russell: if we replace time with space-time, we note that the measured mass (as opposed to the rest mass) is a quantity of the same kind as the momentum in a given direction: you could call it momentum of the time direction - the measured mass is obtained by multiplying the invariant mass with the time that elapses when covering the distance. - Momentum: is obtained by multiplying the invariant mass with the distance.
B. Russell/A.N. Whitehead
Principia Mathematica Frankfurt 1986
Das ABC der Relativitätstheorie Frankfurt 1989
Probleme der Philosophie Frankfurt 1967
Die Philosophie des logischen Atomismus
Eigennamen, U. Wolf (Hg), Frankfurt 1993
Wahrheit und Falschheit
Wahrheitstheorien, G. Skirbekk (Hg), Frankfurt 1996