the circuit: Light Dependent Resistors Light Dependent Resistors (LDR) are also called photoresistors. They are made of high resistance semiconductor material. When light hits the device‚ the photons give electrons energy. This makes them jump into the conductive band and thereby conduct electricity. A photoresistor or light-dependent resistor (LDR) or photocell is a light-controlled variable resistor. The resistance of a photoresistor decreases with increasing incident light intensity; in other
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Considered as a major part of American twentieth-century literature‚ “The Great Gatsby” was published by Charles Scribner’s Sons‚ as a piece of work of Francis Scott Key Fitzgerald. The novel depicted the relationship between the two fictional characters‚ Jay Gatsby and Daisy‚ and their hardship via the eyes of the narrator i.e. Nick Caraway. Gatsby attempted to fulfill his dream romantically and financially‚ but his romantic goal was not achieved in addition to his failure to enter to society. The
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A Critical Approach To "Barn Burning" (by William Faulkner) "Barn Burning" is a sad story because it very clearly shows the classical struggle between the "privileged" and the "underprivileged" classes. Time after time emotions of despair surface from both the protagonist and the antagonist involved in the story. This story outlines two distinct protagonists and two distinct antagonists. The first two are Colonel Sartoris Snopes ("Sarty") and his father Abner Snopes ("Ab"). Sarty is
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Part I. Question 1 Aristotle uses two methods to prove light cannot travel. Besides his empirical explanation‚ where he observes that for the supposed motion of light to go “unnoticed from where the sun rises to where it sets is asking too much” (418b26)‚ he also provides an argument that is understood through the “light of reason.” (418b24) To understand his contention we must refer to his definitions of light and the transparent. The transparent is‚ for Aristotle‚ the medium of sight; it is “what
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The narrator in the poem‚ A Doctor’s Journal Entry for August 6‚ 1945‚ is a doctor. The poem begins with a calm and serene note. The doctor says that it was dawn and he was in his bed‚ not fully clothed. When he stretched out and looked outside‚ he saw shining leaves and shadows. In the next moment‚ there were two sudden flashes of strong light and the old stone lantern in his room lit up by itself. The doctor wondered whether the flashes were magnesium flares seen during a war. In the next moment
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Since only the very top of the ocean receives light from the sun‚ animals have difficulty using their eyes to find their way around in deeper waters. Once animals dive‚ they rely heavily on their hearing to sense their environment. In this essay I’m going to answer these questions by explaining in turn what light and sound are‚ but first we need to know what waves are in order to make it easy to understand the others. Waves exist in both sound and light. Or to make a better sense‚ it is what makes
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Without color or light‚ art would be nothing; we wouldn’t be able to see or distinguish anything. Light allows us to see the space about something; when it casts a shadow on something we know the size of something. Without color we wouldn’t be able to differentiate between anything. It allows us to see the edges of something which in turn allows us to form the relationships in size and space. Colors can also be used to accomplish a diverse sense of feelings. For example‚ artists can use colors to
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LIGHT IN PHOTOSYNTHESIS Theory: Leaf discs float normally. When the air spaces are infiltrated with the solution the overall density of the leaf disc increases and the disc sinks. The infiltration solution includes a small amount of sodium bicarbonate. The bicarbonate ions serve as the carbon source for photosynthesis. As photosynthesis proceeds oxygen is released into the interior of the leaf which changes the buoyancy – causing the discs to rise. Since cellular respiration is taking place
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Aim In this assignment I am going to carry out a practical examination on a plant (onion) and an animal (cheek) cell under a light microscope. The stain methods I am going to use are iodine for my onion cell and methylene blue for my cheek cell. Introduction All animals and plants are made up of cells. Animal and plant cells are made from millions of tiny cells‚ so small that we are unable to see them with our naked eye. Animals and plants have many features in common within a cell such
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William Faulkner‚ the main character‚ Sartoris‚ is a young boy who lives in a poverty-stricken family with a father that is leading him towards a dim future. Sartoris has his father as a source of knowing what misery and hopelessness comes from their family. Sartoris is determined to have a brighter future than the one in which he feels his dad is going to provide him. He goes about this by going against what his entire family has told him. Throughout the last two paragraphs‚ William Faulkner used a
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