The Pioneer Program PDF Download

Author: Primary Association (Church of Jesus Christ of Latter-day Saints)
Publisher:
ISBN:
Category : Mormon pioneers
Languages : en
Pages : 18

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Author: Kerry A. Graves
Publisher: Capstone
ISBN: 0736808043
Category : Education
Languages : en
Pages : 40

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Book Description
Learn what school was like in pioneer times.

Author:
Publisher:
ISBN:
Category : Oregon National Historic Trail
Languages : en
Pages : 17

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Author: Charles River Charles River Editors
Publisher:
ISBN: 9781691212637
Category :
Languages : en
Pages : 67

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Book Description
*Includes pictures *Includes a bibliography for further reading Today the Space Race is widely viewed poignantly and fondly as a race to the Moon that culminated with Apollo 11 "winning" the Race for the United States. In fact, it encompassed a much broader range of competition between the Soviet Union and the United States that affected everything from military technology to successfully launching satellites that could land on Mars or orbit other planets in the Solar System. Moreover, the notion that America "won" the Space Race at the end of the 1960s overlooks just how competitive the Space Race actually was in launching people into orbit, as well as the major contributions the Space Race influenced in leading to today's International Space Station and continued space exploration. Space exploration was always an expensive business, and throughout NASA's history, the agency has had to justify to Congress its need for every dollar it intended to spend. This problem has helped NASA to be more careful and more creative with the money they did receive, and scientists had to justify the equipment they wanted to include on each space probe. They had to justify the size and the power demand, too. If they wanted too much, the entire mission might be scrubbed, and all their work would have been for naught. This made planning and designs leaner and more efficient, as scientists and engineers were more careful with their recommendations. At the same time, scientists have been repeatedly surprised by their discoveries. Some of those discoveries revealed the dangers of space, like the Van Allen radiation belt, dangerous to astronauts without the right kind of protection. NASA also discovered the massive radiation belt surrounding Jupiter thanks to the Pioneer probes in 1973 and 1974. Similarly, with the knowledge that Titan, the largest moon of Saturn, has a thick atmosphere, later missions were sent to investigate the moon up close. Thus, the Huygens lander pierced the Titan atmosphere in January of 2005 to investigate. Although Apollo 11's successful mission to the Moon is seen as the culmination of the Space Race, and the Apollo program remains NASA's most famous, one of the space agency's most successful endeavors came a few years later. In fact, the Pioneer program was the most diversified sequence of any of NASA's programs, and though they're now remembered for being among the first probes in history to reach the Outer Solar System, the elaborate planning changed goals several times over several years before resulting in historic successes. NASA had wanted to do a Grand Tour of the Solar System toward the end of the 1970s to take advantage of the scheduled alignment of planets, which meant the Pioneer missions were meant to be test runs prior to the main events (Voyager 1 and Voyager 2), and a great many things discovered by Pioneer 10 and Pioneer 11 were essential to the successful planning of the Voyager probes. The Pioneer Program: The History and Legacy of NASA's Unmanned Space Missions to the Outer Solar System examines the origins behind the missions, the space probes involved, and the historic results. Along with pictures of important people, places, and events, you will learn about the Pioneer program like never before.

Author:
Publisher:
ISBN:
Category : Internet resources
Languages : en
Pages : 409

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Author: Manfred Broy
Publisher: Springer Science & Business Media
ISBN: 3642594123
Category : Computers
Languages : en
Pages : 714

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A lucid statement of the philosophy of modular programming can be found in a 1970 textbook on the design of system programs by Gouthier and Pont [1, l Cfl0. 23], which we quote below: A well-defined segmentation of the project effort ensures system modularity. Each task fonos a separate, distinct program module. At implementation time each module and its inputs and outputs are well-defined, there is no confusion in the intended interface with other system modules. At checkout time the in tegrity of the module is tested independently; there are few sche duling problems in synchronizing the completion of several tasks before checkout can begin. Finally, the system is maintained in modular fashion; system errors and deficiencies can be traced to specific system modules, thus limiting the scope of detailed error searching. Usually nothing is said about the criteria to be used in dividing the system into modules. This paper will discuss that issue and, by means of examples, suggest some criteria which can be used in decomposing a system into modules. A Brief Status Report The major advancement in the area of modular programming has been the development of coding techniques and assemblers which (1) allow one modu1e to be written with little knowledge of the code in another module, and (2) alJow modules to be reas sembled and replaced without reassembly of the whole system.

Author: William R. Corliss
Publisher:
ISBN:
Category : Outer space
Languages : en
Pages : 632

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Author: Robert Munsch
Publisher: Scholastic Canada
ISBN: 1443113468
Category : Juvenile Fiction
Languages : en
Pages : 32

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Book Description
Despite the warnings of her mother and father, Anna persists in trying to climb things, until she gets stuck in the top of a tree and needs their help to get down.

Author:
Publisher:
ISBN:
Category : Pioneer (Space probes)
Languages : en
Pages : 8

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Book Description

Author: David McCullough
Publisher: Simon & Schuster
ISBN: 1501168681
Category : History
Languages : en
Pages : 352

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Book Description
#1 NEW YORK TIMES BESTSELLER Pulitzer Prize–winning historian David McCullough rediscovers an important and dramatic chapter in the American story—the settling of the Northwest Territory by dauntless pioneers who overcame incredible hardships to build a community based on ideals that would come to define our country. As part of the Treaty of Paris, in which Great Britain recognized the new United States of America, Britain ceded the land that comprised the immense Northwest Territory, a wilderness empire northwest of the Ohio River containing the future states of Ohio, Indiana, Illinois, Michigan, and Wisconsin. A Massachusetts minister named Manasseh Cutler was instrumental in opening this vast territory to veterans of the Revolutionary War and their families for settlement. Included in the Northwest Ordinance were three remarkable conditions: freedom of religion, free universal education, and most importantly, the prohibition of slavery. In 1788 the first band of pioneers set out from New England for the Northwest Territory under the leadership of Revolutionary War veteran General Rufus Putnam. They settled in what is now Marietta on the banks of the Ohio River. McCullough tells the story through five major characters: Cutler and Putnam; Cutler’s son Ephraim; and two other men, one a carpenter turned architect, and the other a physician who became a prominent pioneer in American science. They and their families created a town in a primeval wilderness, while coping with such frontier realities as floods, fires, wolves and bears, no roads or bridges, no guarantees of any sort, all the while negotiating a contentious and sometimes hostile relationship with the native people. Like so many of McCullough’s subjects, they let no obstacle deter or defeat them. Drawn in great part from a rare and all-but-unknown collection of diaries and letters by the key figures, The Pioneers is a uniquely American story of people whose ambition and courage led them to remarkable accomplishments. This is a revelatory and quintessentially American story, written with David McCullough’s signature narrative energy.