swenson loyd (68 risultati)

Hardcover. Condizione: Good. Hardcover. No DJ. Ex-Library with usual markings. Pages are clean and unmarked. Covers show light edge wear with fading. Binding is tight, hinges strong.; 100% Satisfaction Guaranteed! Ships same or next business day!

Hardcover. Condizione: Very Good. Condizione sovraccoperta: Very Good. First Edition. Very Good+ in a Very Good dust jacket. Gift inscription. One corner bumped. A bit of rubbing to jacket.

hardcover. Condizione: Good. Hardcover book no dust jacket. Light wear to book cover and book edges.

Condizione: acceptable. This book is in acceptable condition and may have curled corners, writing & highlighted text.

Condizione: As New. Like New condition. A near perfect copy that may have very minor cosmetic defects.

Paperback. Condizione: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority!

Paperback. Condizione: Acceptable. Major wear to cover and pages. Some pages are bent.

Condizione: New.

Condizione: New.

Condizione: As New. Unread book in perfect condition.

Condizione: Good. Former library book; may include library markings. Used book that is in clean, average condition without any missing pages.

Hardcover. Condizione: Moderate Edge & Shelfwear. Pages are clean and binding is tight.

Hardback. Condizione: Very Good. Condizione sovraccoperta: No Dust Jacket. First Edition. No DJ.

paperback. Condizione: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority!

Soft cover. Condizione: Very Good.

Hardcover. Condizione: Very Good. First Edition. . . . . 1st ed. 4to, hardcover. Lib of Congress stamp on front flyleaf, head/heel of spine & board corners mildly bumped, else vg condition in slightly edge-worn, otherwise vg dj. ep. xii, 391 p. ill.

Condizione: Good. Good condition. (space exploration, space flight, NASA, project mercury) A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included.

Condizione: As New. Unread book in perfect condition.

hardcover. Condizione: Good. Connecting readers with great books since 1972! Used textbooks may not include companion materials such as access codes, etc. May have some wear or writing/highlighting. We ship orders daily and Customer Service is our top priority!

Condizione: New.

Paperback. Condizione: New. The Ethereal Aether is a historical narrative of one of the great experiments in modern physical science. The fame of the 1887 Michelson-Morley aether-drift test on the relative motion of the earth and the luminiferous aether derives largely from the role it is popularly supposed to have played in the origins, and later in the justification, of Albert Einstein's first theory of relativity; its importance is its own. As a case history of the intermittent performance of an experiment in physical optics from 1880 to 1930 and of the men whose work it was, this study describes chronologically the conception, experimental design, first trials, repetitions, influence on physical theory, and eventual climax of the optical experiment. Michelson, Morley, and their colleague Miller were the prime actors in this half-century drama of confrontation between experimental and theoretical physics. The issue concerned the relative motion of "Spaceship Earth" and the Universe, as measured against the background of a luminiferous medium supposedly filling all interstellar space. At stake, it seemed, were the phenomena of astronomical aberration, the wave theory of light, and the Newtonian concepts of absolute space and time. James Clerk Maxwell's suggestion for a test of his electromagnetic theory was translated by Michelson into an experimental design in 1881, redesigned and reaffirmed as a null result with Morley in 1887, thereafter modified and partially repeated by Morley and Miller, finally completed in 1926 by Miller alone, then by Michelson's team again in the late 1920s. Meanwhile Helmholtz, Kelvin, Rayleigh, FitzGerald, Lodge, Larmor, Lorentz, and PoincarÉ-most of the great names in theoretical physics at the turn of the twentieth century-had wrestled with the anomaly presented by Michelson's experiment. As the relativity and quantum theories matured, wave-particle duality was accepted by a new generation of physicists. The aether-drift tests disproved the old and verified the new theories of light and electromagnetism. By 1930 they seemed to explain Einstein, relativity, and space-time. But in historical fact, the aether died only with its believers.

Condizione: New.

Soft cover. Condizione: Very Good. No Jacket. First Paperback Edition. Wrappers protected with acetate cover.

Condizione: Good. Good condition. Golden Comics Digest (Little Lulu) nos. 19, 23, 27, 29,33, 43, 46 (1971-1975); Pocket Full of Fun (Dennis the Menace) nos. 30, 34, 43 (1976-1979). (cartoons, Little Lulu, Dennis the Menace) A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains.

Softcover. Condizione: Very Good. No Jacket. First Edition. First edition in Very Good condition. Plain blue-green wraps with cream lettering on the front cover and spine. Chariots for Apollo: A History of Manned Lunar Spacecraft NASA SP-4205. The corners are creased; otherwise, the covers are in great shape. The binding is square and tight. Spine is creased. Former owner's name and date are printed on the half-title page. The interior pages are clean and unmarked. The book will be carefully packaged for shipment for protection from the elements. USPS electronic tracking number issued free of charge. Apollo was America's program to land men on the moon and get them safely back to the earth. In May 1961 President Kennedy gave the signal for planning and developing the machines to take men to that body. This decision, although bold and startling at the time, was not made at random nor did it lack a sound engineering base. Subcommittees of the National Advisory Committee for Aeronautics (NACA), predecessor of the National Aeronautics and Space Administration (NASA), had regularly surveyed aeronautical needs and pointed out problems for immediate resolution and specific areas for advanced research. After NASA's creation in October 1958, its leaders (many of them former NACA officials) continued to operate in this fashion and, less than a year later, set up a group to study what the agency should do in near?earth and deep?space exploration. Among the items listed by that group was a lunar landing, a proposal also discussed in circles outside NASA as a means for achieving and demonstrating technological supremacy in space. From the time Russia launched its first Sputnik in October 1957, many Americans had viewed the moon as a logical goal. A two-nation space race subsequently made that destination America's national objective for the 1960s. America had a program, Project Mercury, to put man in low-earth orbit and recover him safely. In July 1960 NASA announced plans to follow Mercury with a program, later named Apollo, to fly men around the moon. Soon thereafter, several industrial firms were awarded contracts to study the feasibility of such an enterprise. The companies had scarcely finished this task when the Russians scored again, orbiting the first space traveler, Cosmonaut Yuri Gagarin, on 12 April 1961. Three weeks later the Americans succeeded in launching Astronaut Alan Shepard into a suborbital arc. These events and other pressures to get America moving provided the popular, political, and technological foundations upon which President Kennedy could base his appeal for support from the Congress and the American people for the Apollo program. The Apollo story has many pieces: How and why did it start? What made it work? What did it accomplish? What did it mean? Some of its visible (and some not so visible) parts the launch vehicles, special facilities, administration, Skylab program, Apollo?Soyuz Test Project, as examples, have been recorded by the NASA History Office and some have not. A single volume treating all aspects of Apollo, whatever they were, must await the passage of time to permit a fair perspective. At that later date, this manuscript may seem narrow in scope and perhaps it is. But among present readers, particularly those who were Apollo program participants there are some who argue that the text is too broad and that their specialties receive short shrift. Moreover, some top NASA leaders during Apollo's times contend, perhaps rightly, that the authors were not familiar with all the nuances of some of the accounts set down here. Chariots for Apollo: A History of Manned Lunar Spacecraft begins with the creation of NASA itself and with the definition of a manned space flight program to follow Mercury. It ends with Apollo 11, when America attained its goal of the 1960s, landing the first men on the moon and returning them to the earth. The focal points of this story are the spacecraft the command and service modules and the lunar module.

Paperback. Condizione: Good. No Jacket. Former library book; Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less.

xv, 681p., b/w illus., original blue cloth, U.S. Postal Service auction stamp inside the front cover (The NASA historical series).

Condizione: As New. Unread book in perfect condition.

Condizione: New.

Paperback. Condizione: Very Good. very nice softcover; clean text; NOT ex-library, sticker mark on spine; 538 pages; A2S18.