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RE: starship-design: the beamed power problem, again

If you are decellerating into the beam, you make sure the people
providing the beam are putting out a "red" enough beam so
that when it shifts up, it's okay.

>Ah, if you try to decel into a microwave beam.  How much blue shift would
>you get at what speeds?  Could you blue shif the beam to the point it would
>pass through the mesh of the microwave sail?