Chapter 1 Introduction 1.1 History of Free Space Optics Even though fibre-optic communications gained worldwide acceptance in the telecommunication industry‚ FSO communications is still considered relatively new. But optical communication‚ in various forms‚ has been used for thousands of years. The Ancient Greeks polished their shields to send signals during battle. In the modern era‚ semaphores and wireless solar telegraphs called heliographs were developed‚ using coded signals to communicate
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American History Technology Before the turn of the nineteenth century‚ the quickest way to travel on land was by horse‚ the only way to wash clothes was on a wooded washboard and cooking had to be done on a iron stove or in a fireplace. During that era there was no electricity‚ no telephone and no television. A technological explosion transformed the American way of life in the early 1900s. As time goes by we notice how change occurs constantly and often rapidly. History has shown us how
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HISTORY OF SCIENCE AND TECHNOLOGY The history of science and technology (HST) is a field of history which examines how humanity understands of the natural world (science) and ability to manipulate it (technology) has changed over the centuries. This academic discipline also studies the cultural‚ economic‚ and political impacts of scientific innovation. The twentieth century witnessed a fateful change in the relationship between science and society. In World War I scientists were conscripted and died
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humans obviously from way back when have always wanted more. More food‚ more water‚ more money; it is just how we have become as a species. The same with bigger buildings‚ more sophisticated cars‚ if anything technology would be great for this. Compared to lets say our technology during the space race‚ we have a come an extraordinarily long way as a species from that point in time. If we were to ever stop this wanting so to speak then we would be contempt with ourselves and wouldn’t stride for anything
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History of Educational Technology Educational technology in a way could be traced back to the emergence of very early tools‚ e.g.‚ paintings on cave walls. But usually its history starts with educational film (1900s) or Sidney Pressey’s mechanical teaching machines in the 1920s. The first large scale usage of new technologies can be traced to US WWII training of soldiers through training films and other mediated materials. Today‚ presentation-based technology‚ based on the idea that people can
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Information technology and science has changed the Navy in many ways over time. Since the birth of the Nuclear Navy in 1946 we have come a long way. My job in the US Navy is working in a nuclear population plant. Looking back on the history of US Navy nuclear power I have a better understanding how what I do today has advanced due to technology. The founder of nuclear power in the navy was Hymen G Rickover now known as “the father of Nuclear Navy”. He brought the idea that fission powered reactors
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History Of Science And Technology Submitted by ryan89 on April 18‚ 2011 • Category: History • Words: 2273 | Pages: 10 • Views: 90 • Report this Essay For centuries it was religion that had kept contemporaries of science in the shadow. Any sort of advance to explain a certain phenomena in ways other than that of God’s doing could eventually end up in one’s demise. However‚ what happens when religion loosens its grip on science or as some may argue loses its appeal to the masses due to an influx
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The History and technology of Opalotypes Fig 1; Unknown‚ date unknown Opalotype 383 x 280mm; From the collection of CCMC; Introduction The Opalotype consists of almost any photographic technique as long as it used on opal glass. It was in use from the mid 1800 ’s through to the1930 ’s and most of the methods of photographic production that were used during the 19th century were tried out with opalotypes. However despite it ’s long-lived history‚ Opalotypes are sadly treated as a very minor
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History of Database Technology Past and Present The term database was popularized with the growth of the computer industry and is typically thought of as software used to store‚ index‚ manipulate‚ and retrieve information (Vaughn). Database software has been in use since the Census Bureau used a punch card system to meet the requirements for the collection‚ sorting‚ and reporting of data for the 1890 census (National Research Council). These earliest databases were flat file databases. The
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Australia before the arrival of many different migrants was a place abundant of flora and fauna. Simple produces of bush berries‚ fruits‚ and honey were available and the two common meats were beef and lamb. Today however‚ Australia is one of the world’s most multicultural countries. Aside from Australia’s warm and dry climate and produce availability‚ Australia’s cuisine has been influenced by the tastes of the settlers to Australia. The British colonial period established a strong base in Anglo-
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