You've got a wealth of data to choose from -- dare I say, a plethora, a veritable cornucopia! Sorry -- waxing lyrical -- just can't help myself. Paul. As euphoric as data may be to multitudes, it is still only data which can be either manipulated, false, mistaken, misinterpreted, deficient or incomplete, etc. Just take how the data for evolution is treated for example. Nevertheless though the term gravity assist means gravity was the transfer control mechanism, it does not and cannot mean to imply gravity as the source of the increased energy for propelling the vehicle. The real source of this extra energy can only be that due to the kinetic energy of the moving mass of the planet or moon which is in orbit. Now I can expect the moon to slingshot a vehicle where ever desired, I can expect pluto or any of its moons to do likewise, but if the earth is not moving in any orbit, GS wise, its gravity can do nothing to transfer any energy to any vehicle. orbiting around it.. This is not to be confused with manouveres that cause a close swingby of the earth, effecting a satellite to cause it to adopt a very high elliptical orbit, which can be used to advantage in getting it closer to the moon for a trip thereto.. or as was done to make it travell high enough and slow enough to map the danger zones of the van allen belts. back in the 60's.. I'm no expert here and could be wrong, so please do not run away.. I like to know.. Phil. ----- Original Message ----- From: Paul Deema To: Geocentrism@xxxxxxxxxxxxx Sent: Sunday, April 29, 2007 2:26 PM Subject: [geocentrism] Re: Magnet experiment Allen D At the site below, reference is made to the Galileo and Cassini missions which received gravity assists from (among others) Earth. A Google search on 'gravity assist earth' produces > 1.1M hits. The first page for instance includes a reference to the Stardust mission. You've got a wealth of data to choose from -- dare I say, a plethora, a veritable cornucopia! Sorry -- waxing lyrical -- just can't help myself. ============================================== http://www2.jpl.nasa.gov/basics/grav/primer.html Some History Several robotic spacecraft have used the "gravity assist" technique to achieve their targets "high up" in the Sun's gravity well. Voyager 2 launched in August 1977 and flew by Jupiter for reconnaissance, and for a trajectory boost to Saturn. Voyager 1 launched the following month and did the same (reaching Jupiter before Voyager 2 did). Voyager 2 then obtained an assist from Saturn and another one later from Uranus, climbing all the way to Neptune and beyond. Galileo took one kick from Venus and two from Earth, while orbiting the Sun en route to its destination, Jupiter. Cassini took two boosts from Venus, one from Earth, and another from Jupiter to gain enough momentum to reach Saturn. ============================================== Paul D Send instant messages to your online friends http://au.messenger.yahoo.com ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.467 / Virus Database: 269.6.2/779 - Release Date: 28/04/2007 3:32 PM