Peter Jennings
by zhou on January 31, 2010
Peter Jennings (1938-2005), Canadian-born television journalist, longtime anchor of the ABC network’s World News Tonight. Peter Charles Jennings was born in Toronto, Ontario. His father was a leading journalist with the Canadian Broadcasting Corporation (CBC), and at the age of (…)
Oprah Winfrey
by zhou on January 30, 2010
Oprah Winfrey, born in 1954, American talk-show host and actor, whose nationally syndicated program became one of the most popular on television and won numerous Emmy Awards. A major factor in the show’s success is Winfrey’s ability to connect emotionally (…)
Robert Frost
by zhou on January 29, 2010
Robert Frost (1874-1963), American poet, who drew his images from the New England countryside and his language from New England speech. Although Frost’s images and voice often seem familiar and old, his observations have an edge of skepticism and irony (…)
cell phone
by zhou on January 21, 2010
Cellular Radio Telephone, also called cellular telephone or cell phone, low-powered, lightweight radio transceiver (combination transmitter-receiver) that provides voice telephone and other services to mobile users. Cellular telephones primarily operate like portable or cordless telephones. However, unlike conventional wire-based cordless (…)
Nanotechnology
by zhou on January 19, 2010
Nanotechnology, the creation and use of materials or devices at extremely small scales. These materials or devices fall in the range of 1 to 100 nanometers (nm). One nm is equal to one-billionth of a meter (.000000001 m), which is (…)
Microprocessor
by zhou on January 19, 2010
Microprocessor, electronic circuit that functions as the central processing unit (CPU) of a computer, providing computational control. Microprocessors are also used in other advanced electronic systems, such as computer printers, automobiles, and jet airliners. The microprocessor is one type of (…)
Robocop
by zhou on January 18, 2010
Robocop, motion picture about a police officer in near-future Detroit, Michigan, who is murdered and then rebuilt as a powerful cyborg. Released in 1987, this box-office hit film was directed by Paul Verhoeven. The OCP Corporation presents a solution to (…)
Groundbreaking Summer Games Dominated by U.S. Athletes
by zhou on January 17, 2010
The games of the XXVI Olympiad held closing ceremonies on August 4, 1996, as the world celebrated athletic achievement and mourned senseless violence. The Summer Games, which were held in Atlanta, Georgia, over a 17-day period in late July and (…)
Big Bang Theory
by zhou on January 15, 2010
Big Bang Theory, currently accepted explanation of the beginning of the universe. The big bang theory proposes that the universe was once extremely compact, dense, and hot. Some original event, a cosmic explosion called the big bang, occurred about 13.7 (…)
History of Astronomy
by zhou on January 14, 2010
I INTRODUCTION History of Astronomy, history of the science that studies all the celestial bodies in the universe. Astronomy includes the study of planets and their satellites; comets, asteroids, and meteors; stars and interstellar matter; star systems known as galaxies; (…)
