SightSpeed's technology enables delay-free video Web conferences.
Sociologist Troy Duster on the role of race in medicine.
From the editor in chief
A new method for detecting deadly pathogens within seconds could become a front-line defense against bioterrorism.
Fingerprint scanners may seem the ultimate in identification technology, but tricking them is actually not all that hard.
The Mayo Clinic is transforming medicine with advanced computing.
The Georgia Institute of Technology's devices aid those with mobility, vision, and hearing impairments.
Systems biology aims to provide a clearer picture of how diseases work-and how to prevent them.
The ultimate goal for programming: software that heals itself.
Bacterial innards plus chemical soup yields ingredients for drugs.