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Textron Defense Systems has achieved average power exceeding 100 kw. in laboratory tests of its Joint High Power Solid-State Laser demonstrator. This completes Phase 3 of the $100-million U.S.

Physicists have built a tractor beam out of lasers that can both repel and attract objects across distances 100 times farther than previously possible. Michelle Starr is CNET's science editor, and she ...