1. What is time? I think time is actually a parameter which measures the change. Then is it possible to have negative time? Can we reverse the events already happend?

2.

3. Time is what a clock measures. A clock is any period event.

4. Once it has happened, it can never be like it used to be. It may be similar but not exactly.

5. Originally Posted by Sreeja
What is time? I think time is actually a parameter which measures the change. Then is it possible to have negative time? Can we reverse the events already happend?
You would lose the hard knocks lessons, you got from making all the mistakes you want to change. Ha-ha.

Sincerely,

William McCormick

6. If we can rool back captured video, why don't we roll back a reality :-D , we need to understand what time really is? a moment? what is responsible for the moments passing? If we undestood this we could find out whether we can or not make a "negative" time. I would say time is one of three abstractions of movement, along distance and speed. In our univers all largescale movements are circular, we should look for essence of time in circular movement i think.

7. I jus thought we can't force all the particals in the universe move in oposite direction :-D thus negative time is impossible, but to make a device that simulates this effect I should think about it :wink:

8. Well, if tachyons exist (which I'm pretty sure they don't), they could travel faster in space than they do in time, which would lead to them appearing to be somewhere before they are...

9. My sense of negative time was time before Jesus Christ. Well, this way I understand your question. As for the other issue, I think that, basically, we can not reverse things that already have happened.

Let's say there was a tree growing and this three was chopped down, the process of the three growing was irreversible, I mean. The tree has died and was a cabinet or matches or else now. That's about it. It shouldn't be so simple.

Steve

10. I think there should be a possibility to simulate a reverse of time and look into past or future in case the reality is somehow and somewhere registering. Phisicaly there is a point in past or future where we were or potentially are. It is a position of our planet in a relation to "now". For example one year ago it is one full rotational cycle back, hundred years ahead - 100 full rotations forward. If we could make a modell somehow phisically similar to our celestial sphere, there is a possibility we could look through it seeing different time.

Alongside I remember there was an article in internet that aeronauts have seen sphere like object and flashing light comming from it somewhere in Bermudian region.

11. If such a device would be possible there is an intersting question about time travel. We couldn't travel to past it certain, because that reality does not exist anymore, and probably matter would simply explode, but to the future, if we went through such a device to the future, it seems possible, matter would jump to the time You are curently simulating, and would disappear for the period between, interesting :-D

Again, I remember that during world war II there was US plane escadron that disappeared in Bermudian Triangle Zone.

Hipothesis: Someone is experimenting with time in a future. He lounched a device suddenly matter occured in a radius of active device in 1944, escadron of planes, they just jump into time where device really is. Man turns off device, planes remain there. Possible?

12. Ozolnyex,

you do force others aside, and you know it. Your last two posts are out of any context completely. Just to make others look ridiculous. Shame on you.

They don't fit the thread either, I think. And, currencies will not be devalued. Einstien was dead, yet. Don't need to try that, honestly. Like that.

Steve

13. Time is a measure of change. Time flows in the direction in which entropy will become greater. Does that mean reversing the flow of entropy means reversing the flow of time? Possibly. But who's to say the flow is not just localized? According to Einstein, time is relative to the observer, and not absolute. Even if we reversed the flow of entropy in our local area, the flow of entropy outside of our local area would still continue as normal, and the affects of the outside on the inside would therefore distort the past in such a way that the original future would necessarily not be created again, meaning the initial parameters by which the reversal of entropy began would be altered slightly, if the reversal of entropy would even begin again at all. These effects would be quite difficult to manage, if such technology ever became possible.

14. Sorry, I do not want to make anyone ridiculous.

We are expressing here hipothetical ideas. What is wrong to add a bit fun?

We are used to think "everything is discovered", there were great scientists and we have nothing to add. It is ridiculous how we think about ourselves. Exploration of space - flying around orbits...

Time is one of the most imprtant issues to undestand. And if it's funny, It doesn't mean it's not serious.

15. Originally Posted by Ozolnyex
Sorry, I do not want to make anyone ridiculous.

We are expressing here hipothetical ideas. What is wrong to add a bit fun?

We are used to think "everything is discovered", there were great scientists and we have nothing to add. It is ridiculous how we think about ourselves. Exploration of space - flying around orbits...

Time is one of the most imprtant issues to undestand. And if it's funny, It doesn't mean it's not serious.
Don't get it? It's not ok to make fun of others.

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