An imaginative engineer turned a mess into a universal machine.
They used to call him crazy. Now they call him smart. Chemical engineer Robert Langer crafts cures from plastic.
Unweaving The Rainbow: Science, Delusion, and the Appetite for Wonder
A new vaccine will guard American children agains rotavirus. But much of the world will be unable to afford the protection. What to do?
Computers threaten to widen the gap between the rich and poor. It's in everyone's interest to narrow it.