SunEdison Turns to Big New Markets for Solar Power
The solar-panel installer is replacing diesel engines in villages in India and other Asian countries.
Multimedia
Is Facebook Worth It?
Estimates of the historical value of a user put the IPO hype in perspective.
Bases to Bytes
Cheap sequencing technology is flooding the world with genomic data. Can we handle the deluge?
Iridescent Displays
Qualcomm uses the mechanism that gives color to butterfly wings to make low-power, full-color e-reader displays.
Custom Printing
A desktop 3-D printer builds plastic objects layer by layer
Making Liquid Metal Batteries
Behind the scenes at a startup developing batteries for grid storage.
Interview with George Dyson
The historian of technology discusses the remarkable story that inspired his latest book, Turing’s Cathedral.
Six Strange Things Worth Money Online
What’s a tweet worth? The Web is redefining what’s valuable and letting people create personal wealth in surprising new ways.
The Technomagic of Sphero
Wireless battery charging and remote control via a Bluetooth-based smart-phone app gives this robot toy its appeal.
Printing Muscle
Organovo's 3-D printer creates human tissues that could help speed drug discovery.
