Katharina Cosgrove 31st May 2007 INTRODUCTION Echolocation & in dolphin (frequency range/distance range) 1. Sound spectrum 2. Frequency Range Affects of Underwater Acoustic environment on Studies 1. Sound transmission loss 2. Refraction 3. Mixed layer 4. Reverberation 5. Noise bandwidth considerations 6. Active and Passive Sonar 7. Surface reflections Specific experimental techniques analysis 1. CONCLUSION INTRODUCTION 1. Purpose
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THE EFFECTS OF ASTIGMATISM (NEARSIGHTEDNESS OR FARSIGHTEDNESS) ON THE LEARNING PROCESS OF A CHILD Introduction Vision is one of our richest senses. Making it “the window of the soul”‚ provides us with a wealth of information about our environment and the objects in it; the sizes‚ shapes‚ locations of the things‚ their textures‚ colors and distance. It is also the most studied of all the senses‚ giving us the reason why we give that much high importance on our sense of sight (Sekuler‚ et.
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MONOSACCHARIDES AND DISACCHARIDES Section 1 Relative solubility of Glucose and Galactose Result of the experiment: | |Weight of the |The weight of |Water added (g)|Weight of the |The weight of the|Amount of the |The saturation | | |beaker (g) |the beaker | |magnetic bar |beaker and |sugar added (mg)|points of the | | | |together with | |(g) |magnetic
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-We have 2 parts in our nervous system: The central nervous system (CNS) is the nerves in our brain and spinal chord. The peripheral nervous system (PNS) is a network of nerve cells in the rest of our body. -Our nervous system detects stimuli and allows us to react to them. -Stimulus: a change‚ action or occurrence in the environment that can cause an organism to respond. Eg. Light‚ noise‚ pressure… How do we detect stimuli? -We have sensory organs that detect particular stimuli eg. Skin What
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Sir Chandrasekhara Venkata RamanC. V. Raman was born at Tiruchirapalli in South India on November 7th‚ 1888. Raman entered Presidency College‚ Madras‚ in 1902‚ and in 1904 passed his B.A. examination‚ winning the first place and the gold medal in physics; in 1907 he gained his M.A. degree‚ obtaining the highest distinction. Raman spent 15 years as a Professor in Physics at Calcutta University (1917-32)‚ and 15 years as a Professor in Physics at the Indian Institute of Science‚ Bangalore (1933-48)
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GRADE 10 SCIENCE REVIEW: TDSB CANADA CHEMISTRY – chapters 5‚6‚7 1. Physical Properties: can be observed without changing the composition. i.e colour‚ density‚ taste‚ smell‚ boiling point. Chemical Properties: cannot be observed without changing the composition i.e combustability‚ corrosiveness Qualitative Properties: word descriptions Quantitative: numerical mesurements. Signs of chemical reaction: 1. colour change 2. new gas (bubbling or new smell) 3. new shape 4. releases heat or
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WAVES & SOUND Refraction waves bending when passing through different materials/medium Doppler Effect the effect of a change in frequency‚ resulting from relative motion between source of wave & observer Sound Intensity loudness‚ rate at which energy flows through an area perpendicular to direction of wave Beats 2 waves of similar frequency causing interference heard as beats Reflection Occurs when particles bounce off one another in opposite direction Decibel
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Its weird how some people don’t question the things that are obvious to us. The things we see‚ how do we see it? What makes it visible to us? Is it only because we have eyes‚ or is there another factor. The great Aristotle explained it by having something in our eyes that emits “something” to an object and that’s why things are visible to us. Another question we could ask from our daily life is that how come we can hear? What is it that we hear? Why do we hear it and deaf people don’t? How do we
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Steam Distillation of Lemongrass Oil I. Introduction When a mixture of cyclohexane and toluene is distilled‚ the boiling point of these two miscible liquids is between the boiling points of each of the pure components. By contrast‚ if a mixture of benzene and water (Immiscible liquids) is distilled‚ the boiling point of the mixture will be found below the boiling point of each pure component. Since the two liquids are essentially insoluble in each other‚ the benzene molecules in a droplet of
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Topic 2 : Levelling How levelling is conducted In the figure below the height (or reduced level) of A is known and the heights of B and C need to be estimated. To determine the height of point B a level is set up at position I1 is between A and B. staff readings R1 and R2 are taken. Since the reduced level of A is known (RLA) the height of the line of sight or height of the plane collimation (HPC) at I1 is: HPC at I1 = RL A + R1 To obtain the reduced level at B (or RLB): RLB = HPC
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