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Lynch101

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## Summary:

- Can an infinite number of reference frames be made coincident at the origin?

## Main Question or Discussion Point

In a previous thread, I referenced an argument from the book

*the Scientist as Philosopher*by Friedel Weinert, in which he talks about the reference frames of two relatively moving observers. He made a statement that I had't thought about before, but when I was reading it this time around a question popped into my head. It's pretty trivial question but just one I was wondering about. In the point he is making, he mentions thatAs I say, it's a pretty trivial question but is there a limit on the number of reference frames that can be made coincident at the origin, or it possible to make an infinite number of reference frames coincident at the origin i.e. the reference frame of every observer in the Universe?Friedel Weinert - the Scientist as Philosopher (p.175) said:we must introduce the coordinate system of observer O....The second observer’s reference frame can be made coincident with that of O, by a convenient choice.138 That means that both coordinate systems can be made to coincide at the origin.