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Revision as of 06:12, 4 September 2003 by Reddi (talk | contribs)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)A tractor beam is a device (such as by the Death Star in the Star Wars movies) used at certain lengths with a field intensity beam that "locks" on to an object and can attract that object. On the Starship Enterprise on the television show Star Trek, it is part of the deflector dish and employs graviton particles, the theoretical particles that cause gravity. The Enterprise's beam also has a focusing length and can or repel objects.