How the year's most promising technologists are chosen, and why we insist on their youth.
What is Facebook doing with its unprecedentedly large network?
Qualcomm uses the mechanism that gives color to butterfly wings to make low-power, full-color e-reader displays.
They promise to change the world. But how will their development be funded?
Organovo's 3-D printer creates human tissues that could help speed drug discovery.
What the TR50 companies have in common.
Tomorrow's breakthroughs will demand the revival of American manufacturing.
Large sheets made from carbon nanotubes could lead to lighter aircraft and more resilient space probes.
Emulate the methods and values of Apple's late cofounder.
Better Place's switching stations allow electric cars to swap batteries during long trips.
Photographs by Gil Lavi