A sphere is a three dimensional figure that is the set of all points equidistant from a fixed point, called the center. The diameter of a sphere is a line segment which passes through the center and whose endpoints lie on the sphere. The radius of a...

A sphere is a symmetrical geometrical object. In non-mathematical usage, the term is used to refer either to a round ball or to its two-dimensional surface. In mathematics, a sphere is the set of all points in three-dimensional space (R3) which are at...

Beginning with Pythagoras and Plato, many of the world's greatest thinkers have considered the sphere the finest shape in nature. And yet when in nature lesser minds have tended to commune with their surroundings in odd polygonal tents, from within boxy automobiles, or in...

The reborn Hayden Planetarium, in the new Rose Center for Earth and Space, mirrors astronomy's radical reinterpretation of outer space. Over the past several months, a sphere 87 feet in diameter-standing ou a tripod inside a 120-foot cube made partly of glass-has taken...

With steely arms sprouting cables and wires, the WAO-1 robot looks nothing like a relaxation device.But researchers at Tokyo's Waseda University hope the contraption will soon be deployed to hospitals and spas across Japan to give therapeutic facial massages.The WAO-1 robot, which stands for Waseda...

Dabbs Greer, a veteran character actor who played the Rev. Robert Alden in the TV show "Little House on the Prairie," has died. He was 90.Greer, a Missouri native, died Saturday at Huntington Hospital after a battle with kidney and heart disease, his neighbor, Bill...