A new approach avoids flexible electronics.
Sending false signals to GPS receivers could disrupt critical infrastructure.
An adjustable-focus lens made of two drops of water could be used in small cameras.
New software tracks a stolen laptop without tracking its owner.
Robotic helicopters learn complex tricks by analyzing demos.
California's secretary of state says open-source software is needed to safeguard electronic voting systems.
Microsoft's chief research and strategy officer discusses ways to transform personal computing.
Modules that self-assemble inside the stomach could perform more-sophisticated diagnosis and treatment.
A new approach to face recognition is better at handling low-resolution video.
A new tool assumes that a PC is loaded with malware--and protects transactions anyway.