eli5: What is Speed made of? is it a sort of time particle?
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Just as yesterday and tomorrow are not particles, neither are the place where you are sitting and the location of the refrigerator in your kitchen. The time that it takes you to cross the distance between your chair and your refrigerator to go grab a drink is *speed*.
Speed is made from the relationship between time and position. Neither position, nor time are particles but are rather continuous axes in the expanse of spacetime.
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