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Revision as of 07:58, 4 September 2003 by Hephaestos (talk | contribs)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)A tractor beam is a hypothetical 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 can also be used to repel objects.