The conservation laws show that matter and energy can be neither produced from nothing nor reduced to nothing, whether it be through a physical reaction (such as a collision), a chemical reaction (such as combustion) or a nuclear reaction (such as an...

In physics, a conservation law states that a particular measurable property of an isolated physical system does not change as the system evolves. Any particular conservation law is a mathematical identity to certain symmetry of a physical system. A...

On Jan. 30, 1952, a 27-year-old law school graduate named William Hubbs Rehnquist left his parents' home in Shorewood in a 1941 Studebaker Champion, heading for Washington, D.C. He drove through a snowstorm in West Virginia and Maryland along the way, writing later,...

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People once thought nothing of killing the green turtles on these islands for their meat and eggs, decimating the rare species' ranks along the way. But local efforts to save the creatures _ through a nesting reserve, a veterinary clinic and even a beach patrol...

A former Polish government minister committed suicide in her bathroom Wednesday morning as police searched her house in connection with corruption allegations, authorities said.Officers from Poland's Internal Security Agency staged an early-morning search of Barbara Blida's home in the southern town of Siemianowice, agency spokesman...