BLACK HOLE Introduction: "A luminous star‚ of the same density as the Earth‚ and whose diameter should be two hundred and fifty times larger than that of the Sun‚ would not‚ in consequence of its attraction‚ allow any of its rays to arrive at us; it is therefore possible that the largest luminous bodies in the universe may‚ through this cause‚ be invisible." -- Pierre Laplace‚ The System of the World‚ Book 5‚ Chapter VI (1798). Evolution of Stars 1. Clouds of Hydrogen begin condensing
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Cyclotron From Wikipedia‚ the free encyclopedia For other uses‚ see Cyclotron (disambiguation). A French cyclotron‚ produced in Zurich‚Switzerland in 1937 A modern cyclotron for radiation therapy A cyclotron is a type of particle accelerator in which charged particles accelerate outwards from the center along a spiral path. The particles are held to a spiral trajectory by a static magnetic field and accelerated by a rapidly varying (radio frequency) electric field. History[edit] The
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The role played by weather and road conditions in accidents When you drive in bad weather it usually takes longer and can be stressful. Leaving earlier can allow you to reach your destination without worry of running late. If possible‚ take an alternate route to avoid weather systems that can affect your driving. You should drive more slowly and carefully than normal while driving in bad weather. This can reduce the possibility of accidents from skidding. When you are driving in rain
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INTRODUCTION TO AERONAUTICS: A DESIGN PERSPECTIVE CHAPTER 3: AERODYNAMICS AND AIRFOILS “Isn’t it astonishing that all these secrets have been preserved for so many years just so that we could discover them!!” Orville Wright 3.1 DESIGN MOTIVATION The Physics of Aerodynamic Forces Figure 3.1 shows a cross section view of an aircraft wing. A wing cross section like this is called an airfoil. Lines drawn above and below the airfoil indicate how the air flows around it. The
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In their articles on the Dieppe Raid‚ both Peter Henshaw and Brian Villa go to extreme lengths to recount the events that led up to the raid and the facts of how the raid played out. In his article “Unauthorized Action: Mountbatten and the Dieppe Raid”‚ Villa provides a very accurate recount of the events of the raid. However Henshaw’s article “The Dieppe Raid: A Product of Misplaced Canadian Nationalism?” goes a step further to reveal the pre-raid planning process and the chain of events that
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of an acquired TBI are non-traumatic and traumatic. From there traumatic brain injuries are broke down into two more sub-categories called open and closed injuries. Open head injury is a skull fracture that is driven into the brain caused by high-momentum causes or objects to the head while a closed head injury is a mild physical trauma‚ but still keeping the skull intact (Chew‚ et. al‚ 2014). TBI is categorized according to its severity (1) concussion‚ (2) contusion and (3) laceration. Concussion
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1) Aviation Insurance A) History and development of Aviation It all started when the famous renaissance painter‚ Leonardo da Vinci developed drawings and sketches of flying devices and believed that human could fly on air one day. That may seem something impossible at that time. But‚ he designed a human – powered aircraft‚ Daedalus 88 and flew 115km in 1788. In 1842‚ Englishman named Henson patented a design for a machine similar to the modern monoplane. A Frenchman‚ Alphonse Penaud made
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Length‚ area‚ volume‚ distance‚ speed‚ mass‚ density‚ pressure‚ temperature‚ energy‚ work‚ power‚ electrical potential‚ charge‚ time Vector: A quantity that has (both) magnitude / size and direction Examples: Displacement‚ velocity‚ acceleration‚ momentum‚ force (lift‚ drag‚ thrust‚ weight)‚ field(s)‚ a.c. voltage‚ current (when calculating fields only) define displacement‚ instantaneous speed‚ average speed‚ velocity and acceleration; Displacement = (net) distance moved in a particular direction
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the Earth = 9.795 m/sec² in Fort Worth‚ TX Density = mass / volume #21 Heating a Solid‚ Liquid or Gas Q = m•c•∆T (no phase changes!) Q = the heat added c = specific heat. ∆T = temperature change‚ K Linear Momentum momentum = p = m•v = mass • velocity momentum is conserved in collisions Center of Mass – point masses on a line xcm = Σ(mx) / Mtotal Angular Speed vs. Linear Speed Linear speed = v = r•ω = r • angular speed Pressure under Water P = ρ•g•h h = depth of water ρ = density of water #23
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Contents: 1. Introduction 1.1 Basic Physics of Charged Particles Moving In a Magnetic Filed 1.2 The Lorentz Force 1.3 The Hall Effect 2. What Is Plasma? 2.1 What is it that distinguishes plasma from ordinary gases? 2.2 Commercial Applications 2.3 Waves in Plasma 3. Nuclear Fusion & Fusion Reactors 3.1 The Lawson’s Criterion 3.2 Magnetic Field Confinement 3.3 Inertial Confinement 4. TFTR & Its Contributions to Engineering 4.1 Transport 4.2 Fusion Power Production 4.3 Alpha-Particles
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