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Re: starship-design: FTL idea
>>That means it is moving at only 1.03053c in the frame where B moves with 0.9c
>1.8=(.9-1.45)/(1+(.9*(-1.45)), whatever the significance of this
>equation. You have to be very careful about whether you're looking
>at a beam sent in the same direction or opposite to the direction
>ship B is moving in.
According to your equation 1.8 and .9 are in the same direction? I thought
ship B sent the beam in the opposite direction of the ship's movement.