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Alex48674

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I've read a few things about time, and some of them seem to contradict so I would like to sort out what is true and not.

1. Does time have to coexist with matter, or can time exist without the presence of matter?-[finished]

2. "If we take the smallest length and divide it by the fastest speed, we get the time it takes for the fastest thing to travel the shortest distance. (light in plank's length)" Is this true? Does this not take into account the expansion of the universe, as some things recede faster (although this may not be the right word) then light, or does the expansion of the universe not happen in time itself and is independent of time (if this is true then the word would not be speed because speed is d/t and if it is independent of t and you can't have 0 then it is awhole other term all together)-[finished]

3. Is time a dimension or just a way of thinking to compare events?-[finished]

4. Is there a smallest unit of time (#2)-[finished]

5. Does matter have to exist in time (is matter dependent of time)-[finished]

6. (In #2) Does the expansion of space happen in time?-[need to reword]

Ok onto the big bang

1. What are the current hypothesis on what was before the big bang?

2. What are the current hypothesis on what started the big bang?

3. I understand space is not matter so how could it be described (although I think it is what is is, nothing but a displacement, but just clarification)

4. How does gravity repel ( I heard that under extreme density conditions it can)

1. Does time have to coexist with matter, or can time exist without the presence of matter?-[finished]

2. "If we take the smallest length and divide it by the fastest speed, we get the time it takes for the fastest thing to travel the shortest distance. (light in plank's length)" Is this true? Does this not take into account the expansion of the universe, as some things recede faster (although this may not be the right word) then light, or does the expansion of the universe not happen in time itself and is independent of time (if this is true then the word would not be speed because speed is d/t and if it is independent of t and you can't have 0 then it is awhole other term all together)-[finished]

3. Is time a dimension or just a way of thinking to compare events?-[finished]

4. Is there a smallest unit of time (#2)-[finished]

5. Does matter have to exist in time (is matter dependent of time)-[finished]

6. (In #2) Does the expansion of space happen in time?-[need to reword]

Ok onto the big bang

1. What are the current hypothesis on what was before the big bang?

2. What are the current hypothesis on what started the big bang?

3. I understand space is not matter so how could it be described (although I think it is what is is, nothing but a displacement, but just clarification)

4. How does gravity repel ( I heard that under extreme density conditions it can)

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