Technology of the Modern World by Lowery Zoe;Niver Heather;

Author:Lowery, Zoe;Niver, Heather;
Language: eng
Format: epub
Tags: Children
Publisher: Rosen Publishing Group

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Radio telescopes are pointed toward objects close to the Sun in hopes of identifying signals that would suggest other intelligent life.

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Technology of the Modern World

space in the hope of detecting electromagnetic signals from other intelligent species in the universe.

MILITARY TECHNOLOGY

Military technology in the space age has been concerned with the radical restructuring of strategy caused by the invention of nuclear weapons and the means of delivering them by intercontinental ballistic missiles. Apart from these major features and the elaborate elec- tronic systems intended to give an early warning of missile attack, military reorganization has emphasized high maneuverability through heli- copter transport and a variety of armed vehicles. Such forces were deployed in wars in Korea and Vietnam, the latter of which also saw the widespread use of napalm bombs and chemi- cal defoliants to remove the cover provided by dense forests. World War II marked the end of the primacy of the heavily armoured battleship. Although the United States recommissioned several battleships in the 1980s, the aircraft carrier became the principal capital ship in the navies of the world. Emphasis now is placed on electronic detection and the support of nuclear- powered submarines equipped with missiles carrying nuclear warheads. The only major use of nuclear power since 1945, other than generating

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