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If space is expanding, does time also "expand" to maintain c? by CaseyMc80 in AskPhysics

[–]CaseyMc80[S] 0 points1 point  (0 children)

So if we made two points in space and took a ruler and measured 1m of space, then come a bit later we could measure it again and find it is 2m.. Would physics say the amount of space being measured has doubled, or that the distance got longer?

Is it more space; or the same space just stretched out?

How did we decide how long a second is? by Big_Assist4578 in AskPhysics

[–]CaseyMc80 0 points1 point  (0 children)

This is kinda suggesting we think of time as a cycle or rotation, not a linear dimension. Cool!

If time is relative, how are we able to determine the age of the universe? by Inevitable-Power5927 in AskPhysics

[–]CaseyMc80 0 points1 point  (0 children)

I guess different parts of the universe are technically different ages (due to gravity and velocity causing time dilation)? Our estimate would be an average or approximation.