Can you explain to me how time is regarded as the 4th dimension? Does it mean that if we assume time as a dimension then an object traveling to different time period is possible?
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According to Einstein , you need to describe where you are not only in three-dimensional space* — length, width and height — but also in time . Time is the fourth dimension. So to know where you are, you have to know what time it is.
If i told you to meet me somewhere it would require 4 dimensions. A 3 dimensional space and a time. So say a building at a specific street junction (the 2 dimensional coordinates) and a floor (the third dimensional location) and a time. Without those 4 required dimensions we can not meet.
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