Washington, April 24 : A new study by geologists at UC Davis has suggested that the 1600 eruption of the volcano Huaynaputina in Peru had a global impact on human society.

The 400-year-old eruption is known to have put a large amount of sulfur into the atmosphere, and tree ring studies show that 1601 was a cold year, possibly a result of the climatic event.

Washington, Apr 24 : High-quality proteins need no longer be grown in space, thanks to a Dutch chemist, who has successfully developed two attractive alternatives for making it possible to grow pro

Washington, April 24 : Psychologists from the North Dakota State University have found that more dominant individuals think in dominance-related terms such as power, powerlessness and relative domi

Washington,

Washington, April 24 : Researchers at Washington University School of Medicine in St.