Im kinda piggybacking from an older post, where the OP asked what exactly time is. How can the blackholes warp time, if time (as i know) only a measurement on how old everything is?
In: Physics
Time is an observable phenomenon. Things change. From one state to another. We observe things changing over time, and can measure time by looking at things that change in predictable patters. The sun rises every day, and Caesium-133 wobbles a little faster.
That said, the rate of these predictable events isn’t always the same. We’ve found that at high speed and near mass, the rate of time slows down.
Black holes warp space and time in the same way that ALL mass warps space and time. Warping space is literally gravity. Things fall in. Warping time is another side of that. Like how magnetism and electricity are two sides of the same thing, space and time are likewise related. Near mass, things experience less time.
And none of that answers how it does it.
There have been theories about it being a sort of light gas, working like an electrical field, or with mass emitting gravitons, but those kinda fall short. Recently we saw two black holes merge, which told us some stuff which supports the idea that it’s like radiation. But instead of wave-legths measured in distance, the gravity radiation’s wave-lengths are measured in time. I honestly still don’t quite get it.
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