first laser device was a pulsed ruby laser‚ demonstrated by Theodore Maiman in 1960 [2‚ 3]. In the same year‚ the first gas laser (a helium–neon laser [5]) and the first laser diode were made. Before this experimental work‚ Arthur Schawlow‚ Charles Hard Townes‚ Nikolay Basov and Alexander Prokhorov had published ground-breaking theoretical work on the operation principles of lasers‚ and a microwave amplifier and oscillator (maser) had been developed by Townes ’ group in 1953. The term “optical maser”
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iences ife Sc L Guide Study 12 Grade © Department of Basic Education 2012 s fe Science Li e Study Guid 12 Grade © Department of Basic Education 2012 First published by the Department of Basic Education in 2012 222 Struben Street‚ Pretoria South Africa enquiries Office of the Director General Mr P.B. Soobrayan Email: njobe.p@dbe.gov.za Email: whittle.g@dbe.gov.za Tel: (012) 357 4010 Fax: (012) 323 5837 http://www.education.gov.za Call Centre: 0800202933 Copyright ©Department of Basic Education
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Science or Spin? Assessing the Accuracy of Cable News Coverage of Climate Science Aaron Huertas Rachel Kriegsman April 2014 Our national debate about climate policy is broken. Too often‚ policy makers and other public figures make misleading statements that question whether climate change is humaninduced—or is even occurring at all—rather than debating whether and how to respond to risks from climate change that scientists have identified. Media outlets can do more to foster a fact-based
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Emily Allen AST 101 Professor Hyland 27 March 2015 Science in My Daily Life Science is present in everything‚ even if we choose to see it or not. I am one that naturally sees the science in everything. I have loved learning about what is actually behind the things we see in nature. With that‚ in this class‚ I have learned to notice the small things. It is the small things that make the world go round. When people ask me about the little things‚ I can now come up with a logical explanation to tell
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Psychology as a Science Psychologies earliest discovery can be dated back to the 17th century. When Rene Descartes introduced the idea of dualism. Dualism is defined as the mind and body‚ being separate from one another in order to create the human experience. Psychology has always been a branch of philosophy until the 1870s‚ where it was developed into an independent scientific field in Germany. Psychology as a field of study began in 1879‚ when Wilhelm Wundt founded the first laboratory exclusively
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Meisha Ross 11/26/12 Bio 114 Intro to Marine/Environmental Science Section 2 Chapter 9: Food and Hunger 9.1 World Food and Nutrition People have predicted that because of the growing population‚ a rise in famines will occur but on the contrary‚ world food supplies have kept up with the growing population. Within the past two centuries‚ the growing population has slowed down to an average of 1.7 percent per year. In contrast‚ the world’s food production has increased an average of 2.2
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Islam and Science The 6th century Islamic empire inherited the scientific tradition of late antiquity. They preserved it‚ elaborated it‚ and finally‚ passed it to Europe (Science: The Islamic Legacy 3). At this early date‚ the Islamic dynasty of the Umayyads showed a great interest in science. The Dark Ages for Europeans were centuries of philosophical and scientific discovery and development for Muslim scholars. The Arabs at the time assimilated the ancient wisdom of Persia and the classical
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POLITICAL CULTURE‚ PEOPLE AND POLITICS INTRODUCTION: To understand contemporary forms of government and their politics‚ it is imperative to be familiar with the organizations and functions of political institutions. It is also important to be aware of the physical and cultural dimensions within which politics operates. These external dimensions provide the environment of politics and help to shape attitudes and values
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Science and Technology (400 words) Science and technology plays vital role in the modern life and profoundly influenced the course of human civilization. Technological advancement in the modern life has provided us lots of remarkable insights all over the world. Scientific revolutions has taken its full speed from the 20th century and has become more advance in the 21stcentury. We have entered to the new century in new ways and with all the arrangements for well being of the people. Modern culture
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all will die. Although you may think death is an unpleasant subject‚ it is something that everybody must cope with. People are different all over the world‚ but death is one thing that everyone has in common. ( Stair‚ choosing a career in mortuary science and the funeral industry 6) As the paragraph above states: we all die‚ and though we are all different we all share just that. But what happens when we die? where do we go? what happens to our bodies? Thats where a mortician comes in. A mortician
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