I love the movie Interstellar but I have never fully understood how time dilation works. More recently reading “Project Hail Mary” this term came up again and I went on a Wikipedia binge trying to understand how it works.
How can time be different based on how fast you travel? Isn’t one second, one second everywhere? (I’m guessing not otherwise there would be no time dilation) but I just don’t understand what causes it or how to wrap my head around it
In: Physics
I’ve found the easiest way to explain this is using a [light clock example.](https://www.youtube.com/watch?v=-O8lBIcHre0)
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