History of microorganisms’ discovery Anton van Leeuwenhoek was the one of the first people to observe microorganisms‚ and used a microscope of his own design‚ and made one of the most important contributions to biology. [18] Robert Hooke was the first to use a microscope to observe living things; his 1665 book Micrographia contained descriptions of plant cells. Before Leeuwenhoek’s discovery of microorganisms in 1675‚ it had been a mystery why grapes could be turned into wine‚ milk into cheese
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The Iceman was discovered on the 19th September 1991 by a German couple‚ Helmut and Erika Simons‚ who were hiking near the Austrian and Italian border in the Alps. They both had wandered slightly off trail when Erika spotted a head and shoulders sticking out of the ice‚ she first thought it was a discarded doll‚ but it was later found out to be an ancient traveler now known as the Iceman. The Iceman was quickly named Otzi‚ after the valley Otzhal that was north of his death site. At one glance‚ there
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America and Mexico were in war due to conflicts regarding slavery and territories. Henry Clay (the Secretary of State at that time) tried to end the war by introducing a series of bills called The Compromise of 1850. The Compromise had five laws that were put in place to help the Northern Free States and the Southern Slave States come to a natural balance. In September 9‚ 1850‚ the government passed three of the laws from the Compromise of 1850. The first three bills were regarding territory between
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quickly. The people were probably from Mongolia‚ they travelled through the Black Sea to Messina in Italy on October 1346. The second cause of the Black Plague was the cycle of fleas and rats. The cycle is fleas sucking the rats blood that carries bacteria then the fleas gut gets clogged with the bacteria‚ so the fleas bite the humans the blood goes into the humans wound and then the humans are infected.The living conditions were bad because it was very filthy‚ so there were
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The Montessori Classroom uses the phonics approach to teach reading. Outline the graded phonics sequence and state the reading skills required at each stage. Language is the origin of human civilization. Humans’ capability to express and to communicate an idea by means of speech and words lead the human race to greater discoveries. Building a word by combining sounds and building a sentence which represents an idea by combining words‚ then integrating sounds into symbols and presenting in a written
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The Age of Discovery is often touted as a period of significant growth for the human race. The discovery of the New World‚ and the subsequent explorations of the previously unknown territory‚ as well as the numerous technological‚ scientific‚ artistic‚ intellectual and philosophical advancements are remembered as the great achievements of this age. However‚ despite the many positive advancements that the Age of Discovery is known for‚ the period from 1450 to 1600 was marked by unhappiness‚ prejudice
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destruction of the Indies‚ Indianapolis‚ IN‚ Hackett Publishing Company INC.‚ 2003 Bartolme De Las Casas is an interesting character. His passion for people who at the time were seen as a sub species of humans (if even human at all) is remarkable. De Las Casas came from a modest family and was well educated. He was brought into the world of the America ’s through his father Pedro De Las Casas who was an encomiendo himself. His travels through the New World prior to 1510 when he became an ordained
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The History of the Discovery of Radiation and Radioactivity Introduction: Radiation can be defined as the propagation of energy through matter or space. It can be in the form of electromagnetic waves or energetic particles. Ionizing radiation has the ability to knock an electron from an atom‚ i.e. to ionize. Examples of ionizing radiation include: • alpha particles • beta particles • neutrons • gamma rays • x-rays Non-ionizing radiation does not have enough energy to ionize atoms in the material
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" Marriage of Maria Braun " and the New German Cinema German film also experienced ups and downs over the past few centuries . Germany is a country torn World War II . In 1950 ‚ just after World War II has ended ‚ Germany still paying the consequences. Social and economic status of the country is poor‚ the country is divided into East and West Germany ‚ which is the main downfall of Germany when . The poor economic status of the country ’s film industry to take a toll . The film is being produced
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The Roaring Twenties were a time of economic prosperity‚ innovation‚ heightened consumerism‚ and personal liberation. However‚ the new era also brought much tension that resulted in increased segregation and anti-immigrant ideals. While the twenties are considered a decade of liberation for many‚ it was also an era of civil unrest. The cultural advancements and diverse social landscapes of the 1920s were shaping a new society that threatened old ideals and exacerbated cultural conflict from those
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