Fiber Optics Fiber Optic Cable Facts "A relatively new technology with vast potential importance‚ fiber optics is the channeled transmission of light through hair-thin glass fibers." [ Less expensive than copper cables [ Raw material is silica sand [ Less expensive to maintain If damaged‚ restoration time is faster (although more users are affected) [ Backbone to the Information Superhighway Information (data and voice) is transmitted through the fiber digitally by the use of high
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Module A Lesson 2: Famous Gemstones and Jewellery Diamond Encrustations British Crown Jewels Koh-I-Noor diamond: (“Mountain of Light”) One of world’s largest diamonds The Cullinan Diamond: largest diamond rough ever found Hope Diamond Deep blue colouration Lack of internal flaws Shows VS1 clarity First sold to King Louis XIV Top ten diamonds by size Diamonds >10 carats = exquisite Diamonds >50 carats = possession of museum/wealth people Diamond >199 carats = not sold
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AIM : To find refractive index of any liquid (water) using a concave mirror. APPARATUS: A concave spherical mirror‚ water‚ an optical needle‚ a clamp stand‚ one meter scale‚ plumb line‚ etc. THEORY: If the tip of object needle 0 be at the centre of curvature C‚ tip of image will exactly coincide with it. (Principle axis is verticle to the plane). When water is filled in concave mirror‚ object needle is again replaced to move to C’ to remove parallax between tips of object needle and its image. A
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how to hold a gun. 1. Put your dominant hand on the butt of the gun. 2. Second‚ put your index finger on the trigger. 3. Then if it’s heavy‚ put your other hand on the bottom of the gun. B. Next‚ I assume you already know to hold a gun‚ now I’m going to tell you how to fire a gun. 1. First‚ aim to the thing that you wanted to shoot at. 2. Then‚ pull the trigger with your index finger while holding the magazine base of the gun. As I said earlier there are different types of
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Achilles’ heel‚ however. Consider a new academic study by Utpal Bhattacharya‚ a finance professor at Indiana University’s school of business‚ and four colleagues at Goethe University in Germany. The study‚ "The Dark Side of ETFs and Index Funds‚" found that "easy-to-trade index-linked securities" such as ETFs encourage users to "make bets on market phases‚ and they bet wrong." The researchers reached this conclusion by analyzing a dataset containing all the portfolio transactions between 2005 and 2010
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Experiment 9: THE TANGENT GALVANOMETER; PURPOSE: In this experiment we will measure the magnitude of the horizontal component of the Earth’s Magnetic field by the use of an instrument called a tangent galvanometer. INTRODUCTION: A tangent galvanometer consists of a number of turns of copper wire wound on a hoop. At the center of the hoop a compass is mounted. When a direct current flows through the wires‚ a magnetic field is induced in the space surrounding the loops of
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The optical carrier can be modulated internally or externally using an electro-optic modulator (or) acousto-optic modulator. Nowadays electro-optic modulators are widely used as external modulators which modulate the light by changing its refractive index through the given input electrical signal. In the digital optical fiber communication system‚ the input electrical signal is in the form of coded digital pulses from the encoder and these electric pulses modulate the intensity of the light from the
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COMMUNITY ECOLOGICAL PRACTICAL – BIO2011 2266264 Title: The difference in bird communities using climate as a factor in two differing habitats. Introduction: Bird communities are highly vulnerable to changes in climate as a variable. The factor of habitat type is also very important in determining the abundance and diversity of bird communities. Habitat features‚ elevation and variation in climates is seen to been ecologically important‚ as these particular three factors in differing combinations
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AIM: i)To investigate the dependence‚ of the angle of deviation on the angle of incidence‚ using a hollow prism filled one by one with different transparent fluids. APPARATUS REQUIRED: Drawing board White sheets of paper Hollow prism Different liquids(water‚ kerosene‚ oil‚ spirit etc.) Drawing pins Pencil Half meter scale Thumb pins Graph papers A protractor INTRODUCTION: In optics‚ a prism is a transparent optical element with flat‚ polished surfaces that refract light. The
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the pole firmly with your dominant hand‚ and hold the line against the pole with your index finger. This method allows you to open the spool without letting your bait hit the ground. Now open the spool with the line still in your index finger. Finally you will swing your upper body including your arms to your dominant side and then swing back. When your body comes back half way let go of the line with your index finger and use your arm and wrist to flick the tip of the pole towards your destination
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