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Free space optical communications is a line-of-sight (LOS) technology that transmits a modulated beam of visible or infrared light through the atmosphere for broadband communications. In a manner similar to fiber optical communications, free space optics uses a light emitting diode (LED) or laser (light amplification by stimulated emission of radiation) point source for data transmission. However, in free space optics, an energy beam is collimated and transmitted t ....etc

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i need the abstract for space shuttle and its attachements ....etc

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I need full abstract and ppt for space shuttle and its advancements.plz send me as soon as possible ....etc

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Space shuttles



Previously, all ventures in to space were achieved with giant rockets which, after a certain amount of time , were directed back in to the earth's atmosphere to be reduced to a cinder by the enormous heat of re entry -after the crew and their capsule had been ejected virtually all of that tremendously expensive equipment was destroyed after only one use.

The shuttle, however, to quote to a National Aeronautics And Space Administration officials ,is the first craft to be launched like a rocket, haul like a truck and lan ....etc

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The Space Shuttle was a manned orbital rocket and spacecraft system operated by NASA on 135 missions from 1981 to 2011. The system combined rocket launch, orbital spacecraft, and re-entry spaceplane with modular add-ons. Major missions included launching numerous satellites and interplanetary probes, conducting space science experiments, and the servicing and construction of space stations. A major international contribution was the Spacelab payload suite, from the ESA.[a ....etc

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ABSTRACT
In its 23 year history, the NASA space shuttle program has seen exhilarating highs and devastating lows. The fleet has taken astronauts on dozens of successful missions, resulting in immeasurable scientific gains. But this success has had a serious cost. In 1986, the challenger exploded during launch procedures, and on February 1st of 2003, the Columbia broke up during re-entry over Texas.
This seminar report would be covering the following points:-
¢ A BRIEF HISTORY OF THE SPACE SHUTTLE.
¢ THE SPACE S ....etc

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please send the space shuttle and its advancements seminar topic ppt and pdf ....etc

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THE INTERNATIONAL SPACE STATION (ISS)
In 1984, President Ronald Reagan proposed that the United States, in cooperation with other countries, build a permanently inhabited space station. Reagan envisioned a station that would have government and industry support. The U.S. forged a cooperative effort with 14 other countries (Canada, Japan, Brazil, and the European Space Agency -- United Kingdom, France, Germany, Belgium, Italy, The Netherlands, Denmark, Norway, Spain, Switzerland, Sweden). During the planning of the ISS and after the fall of th ....etc

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Definition

The successful explortion of space requires a system that will reliably transport payloads into space and return back to earth; without subjecting them an uncomfortable or hazardous environment. In other words, the space crafts and its pay loads have to be recovered safely into the earth. The space shuttle used at older times were not re-usable. So NASA invented re-usable space shuttle that could launch like a rocket but deliver and land like an aeroplane. Now NASA is planning to launch a series of air-breathing planes that would ....etc

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Definition

The successful explortion of space requires a system that will reliably transport payloads into space and return back to earth; without subjecting them an uncomfortable or hazardous environment. In other words, the space crafts and its pay loads have to be recovered safely into the earth. The space shuttle used at older times were not re-usable. So NASA invented re-usable space shuttle that could launch like a rocket but deliver and land like an aeroplane. Now NASA is planning to launch a series of air-breathing planes that would ....etc

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