Förlagets beskrivning
Original publisher: [Washington, D.C.] : The Committee, OCLC Number: (OCoLC)44613945 Subject: People with disabilities -- Employment -- Government policy -- United States -- Periodicals. Excerpt: ... 22785-looking back book final 2 11 / 20 / 02 1: 13 PM Page 7 Preface and Acknowledgments United States has seen nuclear power as inherently risky and contro-versial. While scientists such as astronaut Franklin Chang-Diaz have undertaken research in exotic forms of power such as ion or plasma propulsion, such technologies are still in the distant future. While the history of human spaceflight has generally been one of great technological achievement and inspiration, space-farers have also suffered many disappointments, both in terms of human tragedies and in failing to meet goals we have set for our-selves. Disastrous accidents such as the Challenger explosion and the Apollo 1 fire are etched into our collective memories and prod us to take prudent risks and be ever vigilant about safety whenever lives are at stake. At another level, we have been repeatedly frus-trated by our inability to achieve aims such as routine, reliable, and inexpensive spaceflight. Why have we failed in these areas? Is our technology base still immature, or are there other political, cultural, and social factors that limit our ability to satisfy our yearning to explore space? What is our next logical step after the ISS? Should we send humans to Mars? Before we attempt such long-duration missions, we still have much to learn. Even though NASA has now flown humans on Skylab and the ISS, most Shuttle flights are only one to two weeks in duration. We still need to understand more about how microgravity affects human physiology. We know it causes motion sickness in many astronauts before they become acclimated, but researchers still cannot predict which ones will become ill, nor is there a good treatment for this ailment. Microgravity also causes bone density to decrease, which can be reversed b
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Annual report of the President's Committee on Employment of People with Disabilities
Bokrecensioner » Annual report of the President's Committee on Employment of People with Disabilities
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