Suppose two spaceships A (at rest) and B(moving right with velocity v relative to A) one above the other with observer X in A and Y in B,both at the middle of the their spaceship.Let two events event RED and event BLUE strike at the edges(RED at left edge) of the both spaceship when Y is just above X.Then with respect to X the two events will be simultaneous whereas for Y event Blue will occur first than event red.My question if i was Y then what would i predict for X whether X will see two events simultaneously or not??(Does my question make sense?)(adsbygoogle = window.adsbygoogle || []).push({});

p.s. my english so poor sorry for ur inconvenince.Thanks in advance.

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# Relativity of simultaneity

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