Modulus of elasticity: The ratio of the stress applied to a body to the strain those results in the body in response to it. The modulus of elasticity of a material is a measure of its stiffness and for most materials remains constant over a range of stress. . Material | Elastic Modulus | | MPa | psi | Steel | 200‚000 | 30‚000‚000 | Poisson ratio It is the negative ratio of transverse to axial strain. In fact‚ when a sample object is stretched (or squeezed)‚ to an extension (or contraction)
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Cargo cult science is a term used by Richard Feynman to describe a method or idea that imitates the scientific process but is not done for a scientific purpose. In “The Uncertainty of Science” he goes on to clarify that legitimate science accounts for the uncertainties found in science: it is the search for answers‚ faults in methods‚ and data to support theories. However‚ in “Cargo Cult Science” Feynman explains how sometimes “science” is used for personal gain‚ instead of for the benefit of society
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STS took shape independently‚ beginning in the 1960s‚ and developed in isolation from each other well into the 1980s‚ although Ludwig Fleck’s monograph (1935) Genesis and Development of a Scientific Fact anticipated many of STS’s key themes: Science studies‚ a branch of the sociology of scientific knowledge that places scientific controversies in their social context. History of technology‚ that examines technology in its social and historical context. Starting in the 1960s‚ some historians
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By: Bahredin Ali Muzeyin Materials Engineering Department Adama Science and Technology University MAEng3301 October 15‚2013 Abstract Deferent carbon content steel examined to determine the microstructure‚ concentration and hardness of the specimens. 0.2% C‚ 0.4% C and 1.0% C steel specimens were prepared by cutting. Abrasive cutter was used to cut the steels. Furnace was used for heat treatment at 900°C to make the phases separate when seen
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Science has had a short life when compared to religion. Yet we’ve seen civilizations better themselves a thousandfold since hands unclasped‚ grabbed scientific instruments and started measuring the world. Is science some form of new religion? Or is science different from religion? Debates of this matter have been common since the dawn of science. Articles on their differences‚ similarities and clashings have crept up on society and affected everyone in the western civilization. Most recently‚ religious
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2013 Prof. Hazel G. Carreon 12 :30 – 3:30pm Summary Thermal Analysis The branch of material science known as thermal analysis is the study of the change of temperature within the properties of materials. A number of different properties are studied using this method including mass‚ dimension‚ volume‚ stiffness‚ damping‚ heat transfer and temperature. Other concepts can be employed within the
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Material Safety Data Sheet COUWELD® EXOTHERMIC WELDING POWDER (MAIN) 1. Description of Substance / Preparation and Company Trade Name: Supplier: COUWELD® EXOTHERMIC WELDING POWDER (MAIN) COUGAR No. 345 of 4 Jinyuan Road Shanghai 201812 China Contact: th Tel: Fax: E-mail: +86-21-59139731 +86-21-59139732 info@cougar-asia.com info@cougarele.com.cn Mr. Anthony Woo 2. Composition / Specification of Components Chemical Name Thermit Welding Powder. CAS No. 7429-90-5 (Aluminium) 7440-50-8 (Copper)
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the creation of both the Indian Space Research Organisation and the Physical Research Laboratory (Ahemadabad).Jawaharlal Nehru‚ the first Prime Minister of India (office: 15 August 1947 – 27 May 1964)‚ initiated reforms to promote higher education‚ science‚ technology in India.[2] The Indian Institute of Technology — conceived by a 22 member committee of scholars and entrepreneurs in order to promote technical education — was inaugurated on 18 August 1951 at Kharagpur in West Bengal by then minister
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Teachers’ Understandings on the Nature of Science: Implications to Science Education Reforms in the Philippines Abstract. This study investigates the conceptions on the nature of science (NOS) among new and experienced teachers in the Philippines. An in-depth analysis of the Likert and constructed responses revealed the participants’ understandings on six NOS themes. Findings suggest that the notions of both groups are generally in the uninformed state and essentially at the same level with
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City University of Hong Kong Dept. of Physics & Materials Science AP2104 Mechanics of Solids Laboratory Manual Experiment 1 Pure Bending of a Beam Experiment 2 Torsional Deformations Experiment 3 Yield Criteria for Ductile Materials under Plane Stresses Experiment 1 Pure Bending of a Beam Objective 1. To examine the stresses at various positions of the beam under a constant load of pure bending. 2. To determine the curvature of deflection of the beam. Introduction
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