Comparison microscope Stereoscopic microscope Micrometer caliper chronograph A comparison microscope is a device used to analyze side-by-side specimens. It consists of two microscopes connected by an optical bridge‚ which results in a split view window enabling two separate objects to be viewed simultaneously. This avoids the observer having to rely on memory when comHistory In the 1920s forensic ballistics was waiting at its inception. In
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BOUNDARY LAYER THEORY INTRODUCTION The concept of boundary layer was 1st introduced by L.Prandtl in 1904. Figure 7-1. Viscous flow around airfoil A structure having a shape that provides lift‚ propulsion‚ stability‚ or directional control in a flying object. Boundary layer is formed whenever there is a relative motion between the boundary and the fluid. Boundary layer thickness: 1. Standard thickness - signified by ‚” it is define as the distance from the boundary layer
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Since feathers are so familiar to us‚ we rarely stop to admire how well they are constructed. Feathers are light weight but strong. Feathers are waterproof and are insulated while being breathable at the same time. Feathers also help make an airfoil for creating lift on the wings. They serve as rudders for “steering” on the tail. The most outstanding feature of feathers is their amazing color patterns and color. Each feather is lost and regrown annually through the process of molting. Feathers
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TABLE OF CONTENT INTRODUCTION This report looks through basic description of aircraft motions using standard terminologies such as stability‚ control and modes of flight. This also influences various controls and components on keeping the aircraft in its desired flight path with the aid of an explanation on the purpose of the design features of high-speed aircraft parts. Furthermore‚ as fluid dynamics refers to the relationship between fluid and an object‚ that is passing through it.
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The structure design of bended wing body aircraft for commercial airline transport By Yue Sung (Lance) Fung 10/17/2012 Introduction Today many new design aircraft concept use blended wing body theory‚ one of the biggest challenge of this aircraft is to design a strong and pressurized structure for safe commercial Airline transport. According to V. Mukhopadhyay the structure of Blended-Wing -Body (BWB) flight vehicle has been a one of the major challenging problem for many
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** Section E Marking Scheme ** Question 1 (6 marks) The function plotted below has roots at x = 2.5‚ x = 4.6‚ and x = 5.7. 8 6 4 2 0 -2 -4 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 i) Suppose that a bisection search is started with xLOW = 5 and xHIGH = 7. Complete the following table. Step XHIGH XLOW XROOT EMAX 1 5 7 6 1 2 5 6 5.5 0.5 3 5.5 6 5.75 0.25 0.5 mark for consistently picking XROOT
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Study Questions for Exam 1 Chapter 1: What do taxonomists do? Classify‚ name‚ and identify organisms. What is classification? Arrangement of things into groups sharing certain‚ specified similarities. What is the Historia Animalium? Attempt by Aristotle to classify insects. Original definition of a bug: refers to a ghost or hobgoblin (something unpleasant or difficult to see). What did Bartholomaeus Anglicus do of importance? Compilied an entire "Book of the Universe
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Introduction Plane crashes occur for a number of reasons. There seems to be a consensus with the general public that flying is dangerous‚ engines fail and planes crash. That is true some times‚ although the majority of plane crashes occur largely due to a combination of human error and mechanical failure. In much of aviations accidents mechanical failure has been a contributing factor. It is impossible however to blame plane crashes on one reason since events leading up to an accident are so
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Wind Energy Technology IEEE PES 22 July 2008 JP Lyons - Novus Energy Partners Bob Thresher – NREL Wind Tech Center Mike Robinson – NREL Wind Tech Center Paul Veers – Sandia National Labs Modern Wind Turbines Electrical Pitch Drives GE 1.5sl • 1.5 MW • 77 M Rotor Diameter • 50-100 M Tower Doubly-Fed Generator • 98% Availability • Speed 10-20 RPM Main Shaft & Bearing • Variable Pitch Gearbox Epoxy-Glass Composite Blades Transformer & Electrical Power
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Brittany Marie Jenkins October 29‚ 2014 Essay One Rough Draft Compare & Contrast The Featherless Truth. Despite peoples beliefs Bats and Birds are very different‚ on the contrary the two animals do share some common attributes. Many people from scientist’s‚ to bird watchers‚ or just nature lovers look at a bat‚ and for many of those people they have the same thought go through their mind‚ what is it a bird?‚ a mammal?‚ or simply a freak of nature? The answer is yes‚ Bats are mammals! Definitely
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