Re: Experimental proof of OU?


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Posted by Common Sense Science (207.223.245.96) on October 23, 2003 at 11:59:21:

In Reply to: Experimental proof of OU? posted by Jonathan on October 23, 2003 at 01:52:27:

Your exhuberance is justified, Jonathan. What if our target planet for the sling shot effect were stationary in space? Would the effect still be observed? Most readily, yes. Now, proving that the planet is stationary is not our task, you understand, it is enough that we know it's gravity can still be "put to good use". There is a popular toy called "Astrojax" TM. It is a fun and quite educational toy that displays some of the deceptively complex dynamics of orbital bodies.

It is good that you have not fallen into the same circumlocutory trap that firmly grips a good many educated and uneducated minds alike. Gravity, just as it's fraternal twin, magnetism, can sometimes be mistaken for one another though each is unique in it's own way. I would add that they both observe conservative and liberal situations.....it just so happens that those situations exist almost solely in certain labs, exotic terrestrial and extraterrestrial machinery, and nature itself.

For this moment in time.

: Hi all, this just occured to me today. Have any of you watched any discovery channel shows on space travel? Ever heard of gravity assit(-ence in launching space craft)? Well, it is well known that to save money on space craft one can give a space craft the appropriate velocity at the appropriate time so that it will fall toward the heavenly bodies (plural because it often uses more than one body during one trip) and end up farther from that body than it started. This means that with tiny energy input one can achieve huge increases in gravitational potential energy! And I have proof too! NASA does it all the time, the most striking being the Voyager and Pioneer space craft, both of which are barely in the solar system any more! Do you know how much rocket fuel that would have taken had they not used gravity assit?! And yet these same scientists call gravity a conservative force field! Addition: I just found these sites that back me up: An oversimplified view at:

: http://voyager.jpl.nasa.gov/mission/images/f23.gif

: Scoll down to 'History of the Voyager Mission', it's the first paragraph under that heading:

: http://voyager.jpl.nasa.gov/science/planetary.html




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