BigDog could save lives in the field.
Polymers that arrange into nanostructures could store terabits on a square inch.
Wiring up physicians from small practices will be one of the biggest hurdles.
A new tool interferes with a website's secure connections.
A new chip design could lead to far cheaper large-area electronics.
Photosynth is still a work in progress. It is dazzling, but what is it for?