The development of distance education has resulted from so-called push and pull factors: the technological advances created user demand‚ while extensive usage of technologies led to further development in technology. (Lewis et al‚ 1999). One can distinguish between four generations of distance education technologies. The timeframe of the first generation is from 1850s to1960 and the technologies employed are print (correspondence classes)‚ radio and instructional television. The second generation
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Chapter II Light and Matter The Inner Workings of the Cosmos 2.4 The Distribution of Radiation All microscopic objects – fires‚ cubes‚ people‚ and stars – emit radiation at all times. They radiate because the microscopic charged particles in them are in constant random motion‚ and whenever charges change their state of motion‚ electromagnetic radiation is emitted. The temperature of an object is a direct measure of the amount of microscopic motion within it. The hotter the object
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Does Long-Distance Relationship ever Works? A relationship is said to be a connection‚ as in thought‚ concerning or regarding something or someone. Therefore a long-distance relationship (LDR) is similar to a normal relationship but differs in terms of geographic location of the couple; such location can range from 100-1000 miles‚ 100-3000 mile apart etc. Any dating or intimate relationship with so much distance between both parties is no doubt challenging‚ but that one of the things that comes
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a) 125 hundred million light-years 1.25 x 10 ^8 b) 125 billionths of a meter 1.25 x 10^-7 c) the average distance to our Moon in units of parsecs (Consult an appropriate Appendix of the text.) d) the average distance to our Moon in units of nanometers 2. How long does it take light photons to travel the following distances? (Assume light is traveling in a vacuum‚ like space.) a) from the Moon to the Earth b) from Houston to the San
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A Clearing in the Distance: Frederick Law Olmsted and America in the Nineteenth Century Name Institution Introduction Frederick Law Olmsted is not a household name‚ but his simplicity and modesty does not make him one of the rare geniuses. In fact‚ it is almost impossible to separate the man from his well-established posture of modesty and simplicity. In the text‚ he is portrayed as one who upheld good morals: frank‚ open‚ and honest. “A clearing in the distance: Frederick Law Olmsted
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Still Life – Theory Task Jan Davidsz De Heem Jan Davidsz De Heem Was Dutch still-life painter. He was born at Utrecht and his rare early pictures are in the style of Balthasar van der Ast‚ who taught him there. Later he worked in Leiden and showed that he had studied the restrained and simple works of the Haarlem still-life artists Claesz. and Heda. In 1636 he moved to Antwerp‚ became a citizen of that city in 1637‚ and spent most of his very productive life there. The paintings he did in Flanders
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Time and Distance Overcome “Nothing is innocent”. This phrase could very well have been the headline of the essay written by Eula Biss. However the headline ”Time and Distance Overcome” does the essay well. Eula Biss explains the progress from no communication but physical to a web of telephone wires and how the invention of the telephone served the civilization - or most likely did not. There might be a difference between civilization and civilized. To most people‚ the civilization is associated
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Distance Time Graphs Definitions * Speed: Speed is a scalar quantity that refers to "how fast an object is moving." Speed can be thought of as the rate at which an object covers distance. A fast-moving object has a high speed and covers a relatively large distance in a short amount of time. * Velocity: Velocity is a vector quantity that refers to "the rate at which an object changes its position." When evaluating the velocity of an object‚ one must keep track of direction. It would not
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Robert Dressler 9/6/13 Dr. Hendrickson Period 2 Migrations Essay From the period of 1700 to 1900‚ long-distance migrations that included the African Slave Trade and the movement of Irish and British colonists to America. After the African Slave Trade was banned‚ the use of indentured servants was put into place. An agricultural famine caused Irish to flee to America. The African Slave Trade was caused by a need for labor in the Americas. The imported slaves mainly worked
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In “Still Separate‚ Still Unequal” by Jonathan Kozol‚ the goal is to present the readers with information that proves that even in the 21st Century there are schools that are well segregated and that do not have basic necessities. Kozol goes into detail to provide various statistics that show percentage of inner city schools where up to 98% of students are either African Americans or Hispanics. He then moves on to discuss that many of these schools also do not have basic necessities “not enough seats
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