neo wrote:

Gravitational Slingshot.
http://en.wikipedia.org/wiki/Gravitational_slingshot

Flyby Anomaly.
http://en.wikipedia.org/wiki/Flyby_anomaly

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.

Hey stooopid - the planet slows down as the spacecraft speeds up.
Linear momentum, angular momentum, and kinetic energy are all exactly
conserved.

--
Uncle Al
http://www.mazepath.com/uncleal/
(Toxic URL! Unsafe for children and most mammals)
http://www.mazepath.com/uncleal/lajos.htm#a2