Difference between revisions of "Gravitational tractor"
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| − | A gravitational tractor is an object which influences the trajectory of an object in space through the force of gravity alone. It has been put forward as a method to deflect dangerous objects (such as [[asteroids]] or [[comets]] from Earth's orbit. | + | A gravitational tractor is an object which influences the trajectory of an object in space through the force of gravity alone. It has been put forward as a method to deflect dangerous objects (such as [[asteroids]] or [[comets]] from Earth's orbit.) |
==Requirements== | ==Requirements== | ||
Revision as of 18:32, 2 February 2008
A gravitational tractor is an object which influences the trajectory of an object in space through the force of gravity alone. It has been put forward as a method to deflect dangerous objects (such as asteroids or comets from Earth's orbit.)
Requirements
Such an object must be of sufficient mass to noticeably affect the target object.
The tractor needs a means of propulsion strong enough to counter the force of gravity between itself and the target.
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