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Atomic Bomb


Length: 415 words (1.2 double-spaced pages)
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Atomic bombs were the first nuclear weapons to be developed, tested, and used. In the late 1930s physicists in Europe and the United States realized that the fission of uranium could be used to create an extremely powerful explosive weapon. In August 1939, German American physicist Albert Einstein sent a letter to U.S. president Franklin D. Roosevelt that described this discovery and warned of its potential development by other nations. The U.S. government established the top secret Manhattan Project in 1942 to develop an atomic device. The leader of the Manhattan Project was U.S. Army Brigadier General Leslie R. Groves. His team, working in several locations but in large part at Los Alamos, New Mexico, under the direction of American physicist J. Robert Oppenheimer, designed and built the first atomic bombs.

The first atomic explosion was conducted, as a test, at Alamogordo, New Mexico, on July 16, 1945. The energy released from this explosion was equivalent to that released by the detonation of 20,000 tons of TNT. Near the end of World War II, on August 6, 1945, the United States dropped the first atomic bomb on the Japanese city of Hiroshima. It followed with a second bomb against the city of Nagasaki on August 9. According to U.S. estimates, 60,000 to 70,000 people were killed by the Hiroshima bomb, called “Little Boy,” and about 40,000 by the bomb dropped on Nagasaki, called “Fat Man.” Japan agreed to Allied terms of surrender on August 14th. These are the only times that a nuclear weapon has been used in a conflict between nations.

Fusion bombs, also called hydrogen or thermonuclear bombs, were developed and tested in the early 1950s, but these have never been used in warfare. A thermonuclear device depends on a fission reaction to produce extreme heat that causes hydrogen isotopes of deuterium and tritium to come together, or fuse, but the main energy source for thermonuclear devices comes from the fusion reaction, not the triggering fission reaction. For more information on this type of bomb, see Hydrogen Bomb.

Several nations have exploded nuclear devices in tests in the atmosphere, under the earth, and under the sea. Only the United States, Russia, the United Kingdom, France, China, India, and Pakistan admit to possessing nuclear weapons. South Africa admitted to having built and then dismantling a number of bombs. Other nations, however, including Israel, are thought to have them as well or to have the capability to assemble them quickly. See also Arms Control, International.
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Kết quả (Việt) 1:

Miễn phí Tiểu luậnNhà tìm bài luận câu hỏi thường gặp liên hệTìm kiếm: Xem giỏ hàng / thanh toánBom nguyên tửChiều dài: 415 từ (cách 1.2 phôi trang)Đánh giá: Red (miễn phí) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -Bom nguyên tử là vũ khí hạt nhân đầu tiên được phát triển, thử nghiệm, và sử dụng. Trong cuối những năm 1930, nhà vật lý tại châu Âu và Hoa Kỳ nhận ra rằng sự phân hạch của urani có thể được sử dụng để tạo ra một vũ khí nổ cực kỳ mạnh mẽ. Tháng 8 năm 1939, nhà vật lý người Mỹ Đức Albert Einstein gửi một bức thư cho tổng thống Hoa Kỳ Franklin D. Roosevelt được mô tả phát hiện này và cảnh báo về phát triển tiềm năng của nó bởi các quốc gia khác. Chính phủ Hoa Kỳ thành lập tối mật dự án Manhattan vào năm 1942 để phát triển một thiết bị hạt nhân. Lãnh đạo dự án Manhattan là tướng quân đội Hoa Kỳ Leslie R. Groves. Đội bóng của ông, làm việc tại một số địa điểm, nhưng phần lớn tại Los Alamos, New Mexico, dưới sự hướng dẫn của nhà vật lý học người Mỹ J. Robert Oppenheimer, thiết kế và chế tạo bom nguyên tử đầu tiên.The first atomic explosion was conducted, as a test, at Alamogordo, New Mexico, on July 16, 1945. The energy released from this explosion was equivalent to that released by the detonation of 20,000 tons of TNT. Near the end of World War II, on August 6, 1945, the United States dropped the first atomic bomb on the Japanese city of Hiroshima. It followed with a second bomb against the city of Nagasaki on August 9. According to U.S. estimates, 60,000 to 70,000 people were killed by the Hiroshima bomb, called “Little Boy,” and about 40,000 by the bomb dropped on Nagasaki, called “Fat Man.” Japan agreed to Allied terms of surrender on August 14th. These are the only times that a nuclear weapon has been used in a conflict between nations.Fusion bombs, also called hydrogen or thermonuclear bombs, were developed and tested in the early 1950s, but these have never been used in warfare. A thermonuclear device depends on a fission reaction to produce extreme heat that causes hydrogen isotopes of deuterium and tritium to come together, or fuse, but the main energy source for thermonuclear devices comes from the fusion reaction, not the triggering fission reaction. For more information on this type of bomb, see Hydrogen Bomb.Several nations have exploded nuclear devices in tests in the atmosphere, under the earth, and under the sea. Only the United States, Russia, the United Kingdom, France, China, India, and Pakistan admit to possessing nuclear weapons. South Africa admitted to having built and then dismantling a number of bombs. Other nations, however, including Israel, are thought to have them as well or to have the capability to assemble them quickly. See also Arms Control, International.How to Cite this PageMLA Citation:"Atomic Bomb." 123HelpMe.com. 04 Nov 2015 .Related SearchesAtomic Bomb Hiroshima Bomb Nuclear Weapon J. Robert Oppenheimer New Mexico Manhattan Project U.s. Government Atomic Bombs Keywords: Sort By: GửiImportant Note: If you'd like to save a copy of the paper on your computer, you can COPY and PASTE it into your word processor. Please, follow these steps to do that in Windows:1. Select the text of the paper with the mouse and press Ctrl+C.2. Open your word processor and press Ctrl+V.Company's Liability 123HelpMe.com (the "Web Site") is produced by the "Company". The contents of this Web Site, such as text, graphics, images, audio, video and all other material ("Material"), are protected by copyright under both United States and foreign laws. The Company makes no representations about the accuracy, reliability, completeness, or timeliness of the Material or about the results to be obtained from using the Material. You expressly agree that any use of the Material is entirely at your own risk. Most of the Material on the Web Site is provided and maintained by third parties. This third party Material may not be screened by the Company prior to its inclusion on the Web Site. You expressly agree that the Company is not liable or responsible for any defamatory, offensive, or illegal conduct of other subscribers or third parties. The Materials are provided on an as-is basis without warranty express or implied. The Company and its suppliers and affiliates disclaim all warranties, including the warranty of non-infringement of proprietary or third party rights, and the warranty of fitness for a particular purpose. The Company and its suppliers make no warranties as to the accuracy, reliability, completeness, or timeliness of the material, services, text, graphics and links. For a complete statement of the Terms of Service, please see our website. By obtaining these materials you agree to abide by the terms herein, by our Terms of Service as posted on the website and any and all alterations, revisions and amendments thereto.
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