> > > Gravitational slingshot increases velocity of spacecraft without
> > > expelling propellant or reaction matter. This obviously voilates
> > > newton's third law of motion and flyby anomaly supports voilation of
> > > newton's third law of motion.
> >
> > Apparently so, but in reality, the new velocity is the vectorial resultant
> > of both the craft's escape velocity and the planet's velocity.
> >
> > The reason why the planet does not actually slow down in reaction
> > is that the minute amount of energy that it contributes to the craft
> > is instantly replenished on account of it being in stable gravitational
> > equilibrium on its orbit.
>
> Wrong.

?

So, after publicly admitting that you do not understand GR, are you
now going to reveal that you also do not understand the relation
between force and energy ?

André Michaud