Site is entirely in Danish. In a major breakthrough, Danish physicist slows the speed of light . Free registration is required for the New York Times Web Site. Cromie, William J. Physicists slow speed of light . Harvard University Gazette .
Researchers use super-cool goo to dramatically slow speed of light.
CNN Interactive . Includes a video clip from broadcast on February 19, 1999. Scientists put brakes on light . Daily Telegraph . Requires user ID to view article.