March 25, 1986 |
When two scientists, working separately in Africa and in Peru, recently came up with some new insights about the development of stone tools, their pioneering work not only sparked new interest in the evolution of toolmaking but also underscored a new trend in archeology that has potentially far-reaching ramifications. No longer are researchers content merely to dig for artifacts.
November 16, 1995 |
Faced with a ravaged work of art--a waterlogged fresco or a crumbling icon--a restoration expert gingerly removes the layers of grime, repairs the damage and erases alterations made by less deft hands, all to expose the artist's original creation. When the artist is nature, however, and the damaged treasure is an accidental monument to humanity's fledgling footsteps, conservators face unusually daunting challenges.
January 1, 2007 |
ORTHOPEDIC surgeons and podiatrists who study it, operate on it and care for it are as enamored of the often sweaty, sometimes stinky, foot as are cardiologists of the heart, or neurologists of the brain. "It's ingenious," says Edward Glaser, a Tennessee podiatrist who switched professions from mechanical engineering to podiatry because of his admiration for the foot's function. "As a machine, it's an engineering marvel."