Chemistry of Fireworks By Anuradha Sahu Everyone enjoys the amazing firework shows on the Fourth of July with the beautiful vibrant colors and sparks every year. Fireworks have been part of this world for a very long time. They have been used for enjoyment and for signalling purposes. Every culture has their own significance and use of fireworks. But all fireworks have something in common; the chemistry that makes them work. No matter where you find them‚ they are made up of the same compounds
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designed to be so aerodynamic‚ and as light as possible. Making the aircraft as light as possible and then equipping it with two of the most powerful engines is how this aircraft was so successful in completing its mission. The engine is one part of a propulsion system‚ which includes an inlet‚ and an ejector‚ each producing thrust. In order for the system to work properly over a long period of time‚ the inlet must capture the onrushing air properly. For this to happen‚ a large spike is placed in the inlet
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ATTENTION: The Singapore Copyright Act applies to the use of this document. Nanyang Technological University Library AE1001 NANYANG TECHNOLOGICAL UNIVERSITY SEMESTER 1 EXAMINATION 2009-2010 AE1001 – DISCOVERY COURSE I November/December 2009 Time Allowed: 2½ hours Seat Number: Matriculation Number: INSTRUCTIONS 1. This paper contains FIVE (5) questions and comprises NINE (9) pages. 2. Answer ALL questions. Support your answers with formulae and figures whenever appropriate. 3. Write the
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AEROSPACE ENGINEERING SCHOOL OF MECHANICAL ENGINEERING AND DESIGN THE THERMODYNAMIC ANALYSIS AND PERFORMANCE CHARACTRISTICS OF A TURBOFAN JET ENGINE By J. E‚ Ibok 2011 Supervisor: Dr Lionel Ganippa ABSTRACT This work focuses on the performance analysis of a twin spool mixed flow turbofan engine. The main objective was to investigate the effects of using hydrogen‚ kerosene and natural gas fuel on the performance characteristics such as net thrust‚ specific fuel consumption and propulsive
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Absolute entropy is entropy calculated relative to the absolute reference point determined by the third law of thermodynamics. Absolute humidity (specific humidity or humidity ratio) is the mass of water vapor present in a unit mass of dry air; that is‚ it is the ratio of the mass of water vapor to the mass of dry air in atmospheric air. Absolute pressure is the actual pressure at a given position and it is measured relative to absolute vacuum (i.e.‚ absolute zero pressure). Throughout this
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the 20th century integrating its technological advancements in radio receivers and propulsion systems to develop radio controlled airplanes. Moreover‚ it should be noted that propulsion systems were enriched drastically from simple rubber band propellers to liquid fuel internal combustion engines and electrical motors powered by batteries and fuel cells. However‚ in order to comprehend the various types propulsion systems employed on board the Unmanned Aerial Vehicles (UAVs)‚ certain parameters and
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inefficient‚ cumbersome‚ had a very low power to weight ratio‚ and was a high maintenance piece of machinery. The development of the steam turbine was a vast improvement in all of these respects. A turbine consist of one set of stationary blades or nozzles and an adjacent set of moving blades or buckets. These stationary and rotating elements act together to allow the steam flow to do work on the rotor. The ork is transmitted to the load through the shaft or shafts. Figure 1.1 Block diagram of a
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ARE BEING MACHINED BY THIS PROCESS DO NOT EXPERIENCE ANY HARDENING DUE TO PROCESS BECAUSE HEAT GENERATED IS VERY LESS. ALSO‚ SINCE MAJOR CUTTING FORCES ARE DIRECTED IN DOWNWARD DIRECTION IT CAN BE USED TO MACHINE MATERIALS WITH VERY SMALL WALL THICKNESS. THE DEPTH OF CUT OR THICKNESS OF PART TO BE MACHINED IS A FUNCTION OF SPEED AND BEST MATERIAL MACHINING IS OBTAINED FOR THICKNESS LESS THAN 1INCHES. METAL REMOVAL MECHANISM:- ABRASIVE JET MACHINING UTILIZES THE PRESSURE OF FLUID STREAM TO REMOVE
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[pic] AE2009 Aerospace Materials Assignment Report Use of Smart Materials in Aerospace Industry List of Contents 1. Introduction 3 1. Purpose 4 2. Background 4 3. Scope 4 2. Types and Applications of Smart Materials 1. Piezoelectric Material 5 2. Shape Memory Alloys 14 3. Magnetostrictive Materials 20 4. Rheological Fluids 22 3. Discussion 25 4. Conclusion 26 5. References 27 Abstract This report will cover the different types of smart
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Bottle Rocket Handbook Leo C. Singleton IV ii Copyright c 2001 Leo C. Singleton IV. All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means‚ without the prior written permission of the author. Acknowledgments Although I can take credit for being the author of this handbook‚ much of its content is the hard work of other members‚ past and present‚ of the Columbus High School Science Olympiad team. I would like to take this opportunity to thank
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