Scientists search for the perfect french fry.
The Plow and the Satellite A new computer-controlled tractor leaves the driving to the Global Positioning System. New research shows that chocolate may be good for you. Surely You Are Joking, Mr. Goldberg Software engineers use a humorous approach to teach computers how to predict our tastes. The search for the origin of life leads scientists back to the kitchen to discover life's first ingredient. Impelled by the tragic plight of paralyzed victims of spinal-cord injuries, scientists move ever closer to unlocking the mysteries of nerve development and regeneration.