the curve of binding energy

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The Curve Of Binding Energy

Author : John McPhee
ISBN : 9780374708610
Genre : Technology & Engineering
File Size : 42. 47 MB
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Theodore Taylor was one of the most brilliant engineers of the nuclear age, but in his later years he became concerned with the possibility of an individual being able to construct a weapon of mass destruction on their own. McPhee tours American nuclear institutions with Taylor and shows us how close we are to terrorist attacks employing homemade nuclear weaponry.

The Curve Of Binding Energy

Author : Paul F. Kisak
ISBN : 1533565422
Genre :
File Size : 54. 2 MB
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Nuclear binding energy is the energy that would be required to disassemble the nucleus of an atom into its component parts. These component parts are neutrons and protons, which are collectively called nucleons. The binding energy of nuclei is due to the attractive forces that hold these nucleons together and this is usually a positive number, since most nuclei would require the expenditure of energy to separate them into individual protons and neutrons. The mass of an atomic nucleus is usually less than the sum of the individual masses of the constituent protons and neutrons (according to Einstein's equation E=mc2) and this 'missing mass' is known as the mass defect, and represents the energy that was released when the nucleus was formed. The term nuclear binding energy may also refer to the energy balance in processes in which the nucleus splits into fragments composed of more than one nucleon. If new binding energy is available when light nuclei fuse, or when heavy nuclei split, either process can result in release of this binding energy. This energy may be made available as nuclear energy and can be used to produce electricity as in (nuclear power) or in a nuclear weapon. When a large nucleus splits into pieces, excess energy is emitted as photons (gamma rays) and as the kinetic energy of a number of different ejected particles (nuclear fission products). The nuclear binding energies and forces are on the order of a million times greater than the electron binding energies of light atoms like hydrogen. The mass defect of a nucleus represents the mass of the energy of binding of the nucleus, and is the difference between the massof a nucleus and the sum of the masses of the nucleons of which it is composed.

The Founding Fish

Author : John McPhee
ISBN : 0374706344
Genre : Nature
File Size : 64. 23 MB
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John McPhee's twenty-sixth book is a braid of personal history, natural history, and American history, in descending order of volume. Each spring, American shad-Alosa sapidissima-leave the ocean in hundreds of thousands and run heroic distances upriver to spawn. McPhee--a shad fisherman himself--recounts the shad's cameo role in the lives of George Washington and Henry David Thoreau. He fishes with and visits the laboratories of famous ichthyologists; he takes instruction in the making of shad darts from a master of the art; and he cooks shad in a variety of ways, delectably explained at the end of the book. Mostly, though, he goes fishing for shad in various North American rivers, and he "fishes the same way he writes books, avidly and intensely. He wants to know everything about the fish he's after--its history, its habits, its place in the cosmos" (Bill Pride, The Denver Post). His adventures in pursuit of shad occasion the kind of writing--expert and ardent--at which he has no equal.

Heirs Of General Practice

Author : John McPhee
ISBN : 9780374708528
Genre : Biography & Autobiography
File Size : 25. 97 MB
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Heirs of General Practice is a frieze of glimpses of young doctors with patients of every age—about a dozen physicians in all, who belong to the new medical specialty called family practice. They are people who have addressed themselves to a need for a unifying generalism in a world that has become greatly subdivided by specialization, physicians who work with the "unquantifiable idea that a doctor who treats your grandmother, your father, your niece, and your daughter will be more adroit in treating you." These young men and women are seen in their examining rooms in various rural communities in Maine, but Maine is only the example. Their medical objectives, their successes, the professional obstacles they do and do not overcome are representative of any place family practitioners are working. While essential medical background is provided, McPhee's masterful approach to a trend significant to all of us is replete with affecting, and often amusing, stories about both doctors and their charges.

The Deltoid Pumpkin Seed

Author : John McPhee
ISBN : 9780374708627
Genre : Technology & Engineering
File Size : 58. 59 MB
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This is the fascinating story of the dream of a completely new aircraft, a hybrid of the plane and the rigid airship - huge, wingless, moving slowly through the lower sky. John McPhee chronicles the perhaps unfathomable perseverance of the aircraft's sucessive progenitors

Uncommon Carriers

Author : John McPhee
ISBN : 0865477396
Genre : Literary Collections
File Size : 87. 74 MB
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McPhee, in prose distinguished by its warm humor, keen insight, and rich sense of human character, looks at the people who drive trucks, captain ships, pilot towboats, drive coal trains, and carry lobsters through the air: people who work in freight transportation.

Irons In The Fire

Author : John McPhee
ISBN : 9780374708474
Genre : Literary Collections
File Size : 60. 75 MB
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In this collection John McPhee once agains proves himself as a master observer of all arenas of life as well a powerful and important writer.

Levels Of The Game

Author : John McPhee
ISBN : 9780374708658
Genre : Sports & Recreation
File Size : 88. 67 MB
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This account of a tennis match played by Arthur Ashe against Clark Graebner at Forest Hills in 1968 begins with the ball rising into the air for the initial serve and ends with the final point. McPhee provides a brilliant, stroke-by-stroke description while examining the backgrounds and attitudes which have molded the players' games.

Annals Of The Former World

Author : John McPhee
ISBN : 9780374708467
Genre : Science
File Size : 38. 50 MB
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The Pulitzer Prize-winning view of the continent, across the fortieth parallel and down through 4.6 billion years Twenty years ago, when John McPhee began his journeys back and forth across the United States, he planned to describe a cross section of North America at about the fortieth parallel and, in the process, come to an understanding not only of the science but of the style of the geologists he traveled with. The structure of the book never changed, but its breadth caused him to complete it in stages, under the overall title Annals of the Former World. Like the terrain it covers, Annals of the Former World tells a multilayered tale, and the reader may choose one of many paths through it. As clearly and succinctly written as it is profoundly informed, this is our finest popular survey of geology and a masterpiece of modern nonfiction. Annals of the Former World is the winner of the 1999 Pulitzer Prize for Nonfiction.

Giving Good Weight

Author : John McPhee
ISBN : 9780374708573
Genre : Literary Collections
File Size : 75. 77 MB
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"You people come into the market—the Greenmarket, in the open air under the down pouring sun—and you slit the tomatoes with your fingernails. With your thumbs, you excavate the cheese. You choose your stringbeans one at a time. You pulp the nectarines and rape the sweet corn. You are something wonderful, you are—people of the city—and we, who are almost without exception strangers here, are as absorbed with you as you seem to be with the numbers on our hanging scales." So opens the title piece in this collection of John McPhee's classic essays, grouped here with four others, including "Brigade de Cuisine," a profile of an artistic and extraordinary chef; "The Keel of Lake Dickey," in which a journey down the whitewater of a wild river ends in the shadow of a huge projected dam; a report on plans for the construction of nuclear power plants that would float in the ocean; and a pinball shoot-out between two prizewinning journalists.

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