Compounds boost endurance and allow mice to run for substantially longer.
A swallowable robot can be stuck and unstuck to a spot on command.
A rapid-prototyping service opens up technology to hobbyists and designers.
Cuil's rough launch shows the difficulty of challenging major search engines.
A high-resolution, lens-free microscope fits on a dime-size chip.
A new chlorine-tolerant material may streamline desalination processes.
News aggregation is the search-engine giant's weak spot, but paying hundreds of millions for Digg may not be the solution.
A large-scale tidal-power unit has started up in Northern Ireland.
Researchers show a low-cost route to making materials for advanced batteries in electric cars and hybrids.
Replacing sapphire with silicon could lead to more-affordable LEDs.