A mathematical upgrade promises a speedier digital world.
Under the right circumstances, solar cells from Semprius could produce power more cheaply than fossil fuels.
Donald Sadoway conceived of a novel battery that could allow cities to run on solar power at night.
A recent discovery could increase older women's chances of having babies.
A new form of carbon being pioneered by Walter de Heer of Georgia Tech could lead to speedy, compact computer processors.
A new way to identify battery materials suitable for mass production could revolutionize energy storage.
Lytro reinvented the camera so that it can evolve faster.
Zhong Lin Wang thinks piezoelectric nanowires could power implantable medical devices and serve as tiny sensors.
A new reactor design could make nuclear power safer and cheaper, says John Gilleland.
Sandy Pentland is using data gathered by cell phones to learn about human behavior.