Stero microscope low power instrument used in visualizing large objects at low magnification (5-50X); produces unreversed‚ right side up‚ 3-d image; unlike the compound microscope. 1. Prepare slide 2. Turn on transformer 3. Use lowest power lens 4. One eye closed‚ find and focus the object sharply 5. Close eye open the other 6. Keep both eyes open when viewing object Compound microscope Magnifies to about 1000 times with some modification‚ can be increase 2-3 times (but that’s about
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eld Introduc on Some objects are far too small to be seen with the human eye. However‚ by using a microscope many can be viewed in great detail. There are many types of microscopes that range from low–level magni ca on (i.e.‚ hand held magni ca on lens) to very high power magni ca on (i.e.‚ an electron micro scope). In the middle of that range lies the light microscope‚ or for our purposes‚ the compound light microscope‚ which uses mul ple lenses. The compound light microscope (Figure 1) has two
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rules. Background information • The measurement of specimen size with a microscope‚ is made by using an eyepiece graticule. This is a glass or plastic disc with 8 divisions etched onto its surface‚ which is inserted into the eyepiece lens. • The size of the eyepiece graticule remains constant‚ despite the fact that the image viewed will change its size depending upon whether high- or low-power objective lenses are used. For example a cell viewed with the x40 objective
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The magic lantern is an early predecessor of the modern day projector. It consisted of a translucent oil painting‚ a simple lens and a candle or oil lamp. In a darkened room‚ the image would appear projected onto an adjacent flat surface. It was often used to project demonic‚ frightening images in order to convince people that they were witnessing the supernatural. Some slides for the lanterns contained moving parts which makes the magic lantern the earliest known example of projected animation.
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6. Do you think Liam tells the truth about his reasons for running from the grizzly? Why or why not? (2) Point of View(6) 7. From what point of view is the story told? (1) 8. Consider how this perspective affects the story. Can you detect any bias? Explain. (3) 9. What are some things that would change if the story were told from Liam’s perspective? (2) Personal Response (4) 8. Give your personal response to the story. You may want to consider some of these questions in your response:
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Criteria for Intelligence Tests A good intelligence test must be valid‚ reliable and standard. Validity refers to how well the test accurately capture what it attempts to measure. For intelligence tests‚ that is "intelligence". For example‚ a test measuring language proficiency in itself cannot be considered an intelligence test because not all people proficient in a certain language are "intelligent"‚ in a sense. Similarly‚ a test measuring mathematical ability need not include instructions using
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Spherical Mirrors A spherical mirror is a mirror which has the shape of a piece cut out of a spherical surface. There are two types of spherical mirrors: concave‚ and convex. These are illustrated in Fig. 68. The most commonly occurring examples of concave mirrors are shaving mirrors and makeup mirrors. As is well-known‚ these types of mirrors magnify objects placed close to them. The most commonly occurring examples of convex mirrors are the passenger-side wing mirrors of cars. These type of mirrors
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Figure 2.3 shown‚ wherein the line of sight of the telescope is horizontal and the rod is vertical. For the notation i = spacing between stadia hairs‚ c = distance from the instrument center to the objective lens center‚ f = focal length (objective lens to focal point)‚ d = distance from the focal point F to the face of the rod‚ C = (f + c) = stadia constant‚ • for internal focusing telescope‚ C = 0.0 and • for external focusing telescope
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makes the article more interesting passage to read. In both passages‚ the authors fulfill their purpose of trying to inform the reader of Okefenokee Swamp‚ but in different ways. The author of passage one is not interested in helping for create a bias about the swamp‚ and the author of passage two wants the reader to feel a sense of fear and respectful awe of the
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In Zimbabwe‚ We Don’t Cry For Lions by Goodwell Nzou provides an argument for trophy hunting‚ in defense of the dentist who killed Cecil The Lion. 5 Reasons Why Trophy Hunting Is Not Conservation by Alexis Crosswell gives an argument against trophy hunting‚ contrary to Goodwell’s piece. Both articles provide a unique and valuable perspective on the topic. One article‚ however‚ provides a better argument than the other for trophy hunting. The article that has a better argument is 5 Reasons Why Trophy
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