Encoding Information with Light’s Orbital Angular Momentum Light is the future of communication‚ traveling at 3‚000‚000 meters per second‚ the cosmic speed limit of the universe. Its tremendous speed makes it optimal for data transmission. The conventional method to encode information in light is through amplitude modulation‚ i.e. light pulses‚ time division multiplexing‚ i.e. delaying the time light beams enter a channel‚ and wavelength multiplexing‚ i.e. multiple beams of light in one channel
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Chemistry 2500- Exercise C4 The Emission Spectrum of Atomic Hydrogen Objective The purpose of this lab was to calculate an experimental value for the Rydberg constant and then the ionization energy for the hydrogen atom. These values will be obtained by using a prism spectrograph to measure the wavelength value for a section of the visible line spectrum of atomic hydrogen. Theoretical Background When H+ combines with an electron it forms it’s excited state‚ H. This excited atom
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MEN BEHIND SCIENTIFIC INVESTIGATION & DISCOVERIES I- Introduction “He had in fact most of the qualities that make a great scientist: an innate curiosity and perceptiveness regarding natural phenomena‚ insight into the heart of a problem‚ technical ingenuity‚ persistence in seeing a job through and that physical and mental toughness that is essential to the top-class investigator.” - Leonard Colebrook (1883 - 1967) Scientists are known by their discoveries‚ inventories‚ theories discovered
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All about Eagles Think of an eagle...what comes to mind? A large powerful bird of prey‚ swooping down and snatching up its next victim? Or maybe you imagine a beautiful and noble bird with very likable qualities. Actually‚ eagles are all of that and more. In the United States‚ the Bald Eagle is a symbol of justice‚ strength‚ and fairness. The Bald Eagle is after all‚ our national symbol. However‚ to the rest of the world the eagle may bring to mind many different images. That is because there are
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List of Chemistry Terms used in daily life α (alpha)‚ β (beta) α- (β-‚ γ-) ray spectrometer α-addition (alpha-addition) α-cleavage (alpha-cleavage) α-decay (alpha-decay) α-effect α-elimination α-expulsion in photochemistry α-oxo carbenes α-particle (alpha-particle) ’A’ value -factorquantity ab initio quantum mechanical methods abatement in atmospheric chemistry abeo- abiological abiotic abiotic transformation absolute activation analysis absolute activity‚ quantity absolute
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Geopolymer From Wikipedia‚ the free encyclopedia Jump to: navigation‚ search Geopolymers are new materials for fire- and heat-resistant coatings and adhesives‚ medicinal applications‚ high-temperature ceramics‚ new binders for fire-resistant fiber composites‚ toxic and radioactive waste encapsulation and new cements for concrete. The properties and uses of geopolymers are being explored in many scientific and industrial disciplines: modern inorganic chemistry‚ physical chemistry‚ colloid chemistry
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STUDY OF MEASUREMENT AND REDUCTION OF RADAR CROSS SECTION (RCS) A thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science In Aeronautical Engineering By Mohammad Abul Rahat Chowdhury Syed Rashedur Rahman Umme Salma Tania Student ID: 200922045 Student ID: 200922046 Student ID: 200922063 Under the supervision of Group Captain Md. Afzal Hossain‚ psc Head‚ Department of CSE‚ MIST. Department of Aeronautical Engineering MILITARY INSTITUTE OF SCIENCE
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UNIVERSITY ENTRANCE EXAMINATION PHYSICS Duration : 2 hours Please read the following instructions carefully. 1. This paper is made up of 50 Multiple-Choice questions and comprises ELEVEN (11) printed pages. 2. Do not write on the question paper. 3. Answer all questions and indicate your answers on the answer sheet provided. Marks will not be deducted for wrong answers. 4. Do not take any paper‚ including the question paper or unused answer sheets‚ out of the examination
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TUTORIAL SHEET: 1 (Module1: Special Theory of Relativity) 1. Describe the Michelson Morley experiment and discuss the importance of its negative result. 2. Calculate the fringe shift in Michelson-Morley experiment. Given that: [pic]‚ [pic]‚ [pic]‚ and [pic]. 3. State the fundamental postulates of Einstein special theory of relativity and deduce from them the Lorentz Transformation Equations . 4. Explain relativistic length contraction and time dilation in special theory of relativity
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Biomimetics From Wikipedia‚ the free encyclopedia Velcro tape mimics biological examples of multiply hooked structures such as burs. Biomimetics or biomimicry is the imitation of the models‚ systems‚ and elements of nature for the purpose of solving complex human problems.[1] The terms biomimetics and biomimicry come from the Greek words bios‚ meaning life‚ andmimesis‚ meaning to imitate. A closely related field is bionics.[2] Living organisms have evolved well-adapted structures and materials
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