Cover Story
LEDs vs. the Lightbulb
With their longer lifetimes and higher efficiencies, light-emitting diodes will transform the illumination industry-and save billions in energy costs.
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May 2003
Also in This Issue
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Featured Story
Mind-Machine Merger
Devices that connect the brain with computers could lead to mind-controlled robots, repair neurological disorders, and even improve memory.
Gregory T. Huang
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Featured Story
Surveillance Nation-Part Two
In pursuit of security and service, we are submitting ourselves to a proliferation of monitoring technologies. But a loss of privacy is not inevitable.
Dan Farmer and Charles C. Mann
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Featured Story
Patents Go Global
A single global patent system could simplify the international patent process. Will the United States sign on?
Evan I. Schwartz
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Featured Story
The Printable Transistor
Bell Labs rethinks the transistor-as cheap, flexible, and organic.
Erika Jonietz
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Leading Edge
Should Patents Go Global?
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Letters
Letters
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Prototype
Prototype
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Innovation News
Attacking Anthrax
Tapping the Tides
New Vein for Skin Grafts
A More Anonymous Internet
Space Repairman
Fixing the Location Fix
Machining Melodies
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Trailing Edge
Physiology´s Hidden Genius
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Columns
Proof of Concept
Global Warning
The Vision Thing
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Point of Impact
Curbing Peer-to-Peer Piracy
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Visualize
Smart Bandage
