Causality principle, Physics

Causality principle

The principle which cause has to always preceed effect. More formally, if an event A ("the cause") somehow effect an event B ("the effect") that occurs later in time, then in turn event B cannot contain an influence over event A. i.e., event B has to occur at a later on time t than event A, and further, all of frames has to agree upon this ordering.

The principle is best illustrated through an example. Say that event A constitutes into a murderer taking a decision to kill his victim, and that in actually event B is the murderer committing the act. The principle of causality puts that the act of murder cannot contain an influence over the murderer's decision to commit it. If the murderer were to in some way see himself committing the act and change his mind, then murder would have been committed in the future without a prior cause (he changed his mind). It represents a causality violation. Both time travel & faster-than-light travel both imply violations of causality, which is why most of the physicists think they are not possible, or at least impossible in the general sense.

Posted Date: 3/28/2013 1:32:07 AM | Location : United States







Related Discussions:- Causality principle, Assignment Help, Ask Question on Causality principle, Get Answer, Expert's Help, Causality principle Discussions

Write discussion on Causality principle
Your posts are moderated
Related Questions
what is the effect of torque and equilibrium on taps, doors,handle bars and bicycles??

BH curve: For any ferromagnetic material there is a definite value of flux density (B), corresponding to a specified value of magnetising force (H).  These values can be ascert

#what are practical examples of like and unlike parallel forces?#


why flashlight suddenly become dim or bright when shaked?

what will happen when a ball is dropped in a hole passing through the centre of earth through out diametrically?

A certain machine exerts a force of 200 newtons on a box whose mass is 30 kilograms.  The machine moves the box a distance of 20 meters along a horizontal floor. What amount of wor

Advantages of A.C. transmission of power 1. The power can be produced at high voltages. 2. The maintenance of a.c. sub-stations is simple and cheaper. 3. The a.c. voltage

An astronaut on a small planet wishes to measure the local value of  g  by timing pulses traveling down a wire which hasa large object suspended from it. Assume a wire of mass3.50

Q.  Explain Rayleigh's criterion of just resolution of two spectral lines of equal intensities giving suitable intensity distribution carves. Show how the resolving power of a pla