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Questions tagged [time]

Time is defined operationally to be that which is measured by clocks. The SI unit of time is the second, which is defined to be

0 votes
0 answers
27 views

Kinematics and law of motion [closed]

An object is under a motion with velocity v as function of distance V=(x^2+10x+3). What will be the velocity as function of time for same object following the same motion??
Divyanshu Kumar.'s user avatar
1 vote
3 answers
96 views

Do clocks tick faster when gravitational forces are weaker?

A professor last year taught us that "gravity slows clocks," when teaching about the relationship between gravity and time. This led me to think about places, such as intergalactic space, ...
William Solomon's user avatar
-3 votes
1 answer
74 views

Probabilistic behavior of quantum mechanics [closed]

In a hypothetical scenario, if I were to measure the quantum spin of an electron and it showed "up," and then I traveled back in time without changing the initial conditions, would measuring ...
Vishnu's user avatar
  • 15
1 vote
2 answers
106 views

Does Hamilton's principle allow a path to have both a process of time forward evolution and a process of time backward evolution?

This is from Analytical Mechanics by Louis Hand et al. The proof is about Maupertuis' principle. The author seems to say that Hamilton's principle allow a path to have both a process of time forward ...
Raffaella's user avatar
  • 353
-1 votes
1 answer
56 views

How exactly did Harrison's chronometer circumvent the impulse problem of time-keeping on a moving ship?

According to folklore, around the time of the exploration of the New World, there was a quandary regarding how to measure time on the open sea. Time keeping then was based on the pendulum clock, which ...
Fomalhaut's user avatar
  • 179
-1 votes
1 answer
74 views

Multiple time dimensions in the eternal inflation model

From a lecture by Prof. Kaiser, I reckoned that according to the Eternal Inflation model, it is possible that all of the 10500 topologies posited by string theory could exist somewhere in the region ...
groaking's user avatar
0 votes
1 answer
37 views

Extrapolating time to infinity for a particle moving spirally outward

If I have a particle moving radially away from me in a straight line and I extrapolate time to infinity, I could see the particle in a particular direction (given enough time for the light to reach me)...
Matrix23's user avatar
  • 1,212
-6 votes
1 answer
54 views

Could chaos theory and butterfly theory prove that time only exists in the present? [closed]

I am sorry if this were to sound dumb but, chaos theory is about reconizing patterns and the universe itself can only repeat it self , would that mean that time only exist in the present cause if time ...
Anonymous 's user avatar