# What is time??

Discussion in 'Science & Society' started by Shadow1, Feb 5, 2011.

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Read this:
Nonsense.

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3. ### hansdaValued Senior Member

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From the equation : speed = distance/time ; or time = distance/speed. Distance, we can see/percept. Speed, also we can see/percept. But for time , we have to see the clock . We can not see time though we have a perception of time.

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5. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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Fail. Using that equation lets you "see" all of them equally.

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This!

8. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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So tell me which way "time moves" in my house. And please advise me of of any possible adverse effects when I leave my house to go somewhere where time "moves" normally.

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9. ### hansdaValued Senior Member

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The idea which we get from the equation : time = distance/speed is the 'time-interval' of time. This equation does not reveal the whole picture of time . If the distance becomes zero , will time cease to exists ?

10. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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So what? What gives us the whole picture of anything?
Does that equation give us the "whole picture" of length? Or speed?

Does a stationary object still experience the passage of time?

11. ### hansdaValued Senior Member

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Obviously, time is moving from present to past as we are moving from present to future. Clock only gives us an idea of time but clock is not the source of time . Will the time stop , if the clock stops ? So time is still mysterious.

12. ### KennycRegistered Senior Member

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Not mysterious at all. It's a fundamental feature of space (and motion).

13. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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What makes you think it's "obvious"? It isn't "obvious" at all. Please explain this.

No one has claimed that clocks are the "source of time". They are no more the source of time than a tape measure is the source of length.

14. ### hansdaValued Senior Member

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" Does a stationary object still experience the passage of time? "...

--- Has time ever stopped?

15. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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Wrong question.
It doesn't address my question. Unless it's an oblique way of saying "yes".
And how would we know if time had ever stopped? We live inside time. If time did stop how could we tell?

16. ### BallisticBrianRegistered Member

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No one's mentioned Hawking's theories about time stopping on the event horizon of a black hole.

17. ### hansdaValued Senior Member

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We are all in the same earth and moving along with the motion of our earth. As earth spins we are also spinning ; though we are static with respect to earth because relative velocity is zero. But there is a relative velocity with respect to the Sun. So, tomorrow when the Sun rises today will become past(yesterday). So time is moving from future to present and from present to past.

18. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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Yes. And your point is?

Really? How do you work that out?
How do you work out that time "moves"?
What do you think time is that it can move?

19. ### hansdaValued Senior Member

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Consider yourself as an observer. Whatever you are observing is your present observation. After some time has passed , you will make new observation. So as time is passing you are encountering the future. You are meeting the future at the present. So the direction in which we are growing , time is moving in the opposite direction.

20. ### Captain KremmenAll aboard, me Hearties!Valued Senior Member

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I think that hansda is confusing the ways we measure the passage of time, with the passage of time itself.

Last edited: Feb 19, 2011
21. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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Consider yourself as a driver. You move along a road making new observations of the road.
Does this mean that the road is actually moving? At all?
No.
And the same with your "observation" that "time is moving".

22. ### hansdaValued Senior Member

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Ultimately it is becoming relative motion only. So 'passage of time' is relative motion of space only.

23. ### DywyddyrPenguinaciously duckalicious.Valued Senior Member

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You still have to show that "time moves" or actually is something we "move" through.

Nope.
Time is not space.