Is Time a Vector, Scalar, or Something Else Entirely?

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SUMMARY

The discussion centers on the nature of time, specifically questioning whether it is a scalar or vector quantity. Participants agree that time is a scalar, measurable in various units, similar to length. The conversation also touches on the philosophical implications of defining time, with references to physics and the operational definition of time as what a clock measures. Notably, John Wheeler's perspective on time as a mechanism preventing simultaneous events is highlighted.

PREREQUISITES
  • Understanding of scalar and vector quantities in physics
  • Familiarity with basic units of measurement (seconds, minutes, etc.)
  • Knowledge of fundamental physics concepts, including time and its measurement
  • Awareness of philosophical implications in scientific definitions
NEXT STEPS
  • Research the concept of scalar vs. vector quantities in physics
  • Explore the operational definition of time in physics
  • Study John Wheeler's contributions to the philosophy of time
  • Investigate the implications of time measurement on scientific theories
USEFUL FOR

Students of physics, philosophers of science, and anyone interested in the conceptual understanding of time and its implications in both scientific and philosophical contexts.

unscientific
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Greetings, I have pondered over this question for what seemed ages. I dared not ask for opinions of my fellow classmates for they may mock at me for being a moron.
My question is:
1) What exactly is time? ( scalar? vector? units? force? )


2) How does time past?

( Before 1s passes.. 0.0001s...0.0000000000001s...etc. ) Does time even past or begin?


2 b) State the acceleration of time.

Nothing could be more wonderful than an intellectual discussion. :rolleyes:
 
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Your first question alone could be pondered for quite awhile. Time is most definitely a scalar, and can be measured in whatever units you like (just as length can be measured in inches, meters, cubits, etc.). But it's interesting to ask what time really is. I remember my very first physics class, in which our instructor posed the question of how we should define time. But she then asked us to write our own individual definitions, which proved to be a somewhat challenging task. The problem with the most basic units, such as time, length, mass, and electric charge, is that they are so simple that they can't easily be defined in any simpler terms.
 
Operational: time is what a clock measures.

What does a clock measure? What we want it to measure.

So why does the universe seem to be so obsessed about working according to something we have defined? Easy: we were inspired to build a clock to measure something that we knew would be periodic, regular etc.
 
unscientific said:
2 b) State the acceleration of time.
I'll have a go at this one for fun.

dt = dt.
dt/dt = 1.
d^2t/dt^2 = d/dt(1) = 0.

As logic dictates it ought to be.

Claude.
 
John Wheeler (a famous physicist) was famous for saying that time is what prevents everything from happenging together.
 
In sci-fi when an author is talking about space travellers or describing the movement of galaxies they will say something like “movement in space only means anything in relation to another object”. Examples of this would be, a space ship moving away from earth at 100 km/s, or 2 galaxies moving towards each other at one light year per century. I think it would make it easier to describe movement in space if we had three axis that we all agree on and we used 0 km/s relative to the speed of...

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