...for freedom. Legend has it that they would make quilts and hang them in the window or on the clothesline out side. So when escaped slaves would see these quilts they would know if it was safe there or if they were going the correct way. The quilts were made with different patterns/ images, for example if the quilt had a wagon wheel it would tell the slave to leave that it wasn’t safe their. Some also had a North Star pattern that meant they were going the correct way North. They used patterns to communicate because slaves did not know how to read or write it was against the law for a slave to know how to read or write. The plantation owners had no idea about the hidden messages they only saw a quilt and a slave hanging laundry. This was during the Underground Railroad; so not only did slaves make these quilts but also the Americans that were apart of the Underground Railroad. QUILT PATTERNS & THEIR MEANINGS *Monkey Wrench This meant the slaves were to gather all the tools they might need on the journey to freedom. Tools meant: something with which to build shelters, compasses for determining direction, or tools to serve as weapons for defending themselves. *Wagon Wheel This was the second pattern to be displayed, which signaled the slaves to pack all the things that would go in a wagon or that would be used during their journey. This was a signal for the slaves to think about what essentials they needed to survive the trip. *Carpenter’s Wheel (Wagon Wheel variation) ...
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...Contents Task 1 2 Assessment criteria 1.1: 2 Assessment criteria 1.2: 5 Assessment criteria 1.3: 8 Degrees of Freedom of a Rigid Body 9 Assessment criteria 1.4: 11 M1: 12 TASK 2: 16 Assessment critieria 2.1: 16 Assessment criteria 2.2: 18 Assessment criteria 2.3: 20 M2: 22 TASK 3: 25 Assessment criteria 3.1: 25 Assessment criteria 3.2: 26 Assesment criteria 3.4: 27 Assessment criteria 3.5: 29 TASK 4: 30 Assessment criteria 4.2: 30 Bibliography 32 Task 1 Assessment criteria 1.1: Typical axis convections: • Lathe single point cutting tool: The lathe is a machine tool which cuts and rectifies the given cylindrical object by rotating it. It is being cut by a fixed single point cutting tool, it is made in contact with the work piece...
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...of the term Degrees of Freedom (DOF). 1) Denote the number and parameters of displacements and/or rotations available within a given task space. Degrees of Freedom in a Three Dimensional (3-D) Space In a Two Dimensional (2-D) space (like a table-top or the floor) there are three Degrees of Freedom. These include displacement along the X and Yaxes, plus rotation. In a Three Dimensional (3-D) space there are six degrees of freedom. These consist of displacement along three perpendicular axes (X, Y and Z), and rotation about those same axes. DOF in 3D space are generally identified using the following nautical terms: Displacements Heave: Moving up and down Surge: Moving forward and backward Sway: Moving left and right Rotations Yaw: Turning left and right flight Roll: Tilting side to side Pitch: Tilting forward and backward> 2) Denote the number and parameters of displacements and/or rotations that a body or mechanism is able to execute. Holonomic mechanisms are able to perform controlled movement through every available DOF within its particular task space. Non-holonomic mechanisms are capable of fewer controlled DOF than are actually available within its task space. Redundant mechanisms can execute more controllable DOF than are actually available within its task space. Contents [hide] 1 Mobility In 2-D Space o 1.1 Holonomic Motion 2 An Arm In 3-D Space 3 Related Links [edit] Mobility In 2-D Space Degrees of Freedom of arobot that utilizes...
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...In the story, Greasy Lake by Bruce Springsteen reflects how teenagers give into bad influences. Bad influences and decisions can cause bad consequences. Being around people like the girls in the story always doing drugs and partying means that the people around that environment all support bad behavior. Just like they found a “bad, greasy” stranger that physically beats them up. This shows that being around bad influences can lead to even worst consequences. It is interesting that the author decided to keep the protagonist’s' car tires intact, "It was true: the tires were intact. There was no windshield, the headlights were staved in, and the body looked as if it had been sledge-hammered for a quarter a shot at the country fair, but the tires...
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...Electric Vehicle Stabilization Control with In-Wheel Motors Geng Cong, Hori Yoichi (The University of Tokyo) Abstract: Body slip angle is important for electric vehicle stabilization control with in-wheel-motors. However，as sensors to measure body slip angle are very expensive, it needs to estimate β from variables measurable. The most difficult forβestimation is that the strong non-linear characteristics of vehicle, especially non-linear characteristics of tire force makes vehicle model parameters change greatly as vehicle running in nonlinear conditions. This paper proposes an observer based on nonlinear tire model which can describe the tire lateral force in its nonlinear region. Simulation and experimental analysis demonstrate the observer’s effectiveness, especially when the vehicle running in nonlinear cornering regions. Key words: electric vehicle, vehicle stabilization control, body slip angle, nonlinear observer, nonlinear tire model 1. Introduction In recent years, considering environmental protection and energy conservation, electric vehicles (EVs) are intensively developed. Due to the improvement of motor design and control technology, modern configurations are developed for EV. One of the latest configurations is motor-in-wheels, which means motors can be fitted into all the driving wheels of EV independently. For vehicle chassis control, such configuration brings much more advantages. All the wheel motors torque can be measured and controlled independently...
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...oil cooler. Check metal particles or foreign materials in filter, on sump drain plug, and on engine suction screen replaced filter, and refill for recommended grade aviation oil. | | 2. Induction of Air Filter – remove and clean. Inspect for damage and remove. | | 3. Cylinder, Oil Sump, Accessory Section and Front Crankshaft Seal – inspect for crankshaft evidence oil leakage. Check bolt and nut looseness and torque as necessary. Check crankcase seal breather line for obstruction security and general condition. | | 4. Intake and Exhaust System –inspect for crack and security special check in area of heat exchange, and inspect for leakage in intake manifold | | 5. Engine Control And linkage – Check general condition freedom of movement through full range check for proper travel, security for attachment and for evidence of wear, check friction of lock and venire adjustment for proper operation. Check that throttle and fuel mixture arm operate through their full arc travel. | | 6. Cylinder, Rocker Box Cover and Push Rod Housing - check for pin...
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...considerable margin as well as prevent the wheels from locking so you can steer the vehicle away from the object, but, the fact is, whatever I said, sounds so easy to do but so tough to actually perform. Think honestly, how many of you actually remember performing this in such a panic condition? Actually, no one and apart from this, even if you remember to do so, how fast actually you can perform the act of pressing and releasing of brakes? Not much, at least less than the required speed of doing so. Here comes ABS in picture. Whatever action of pressing and releasing the brakes is concerned, it does it with accuracy and required speed without failure. It presses and releases the brakes almost 20 times a second, stopping the vehicle in a shorter time and distance. But how? How it knows that it has to do this? How it knows that the wheel has locked up? What is that which applies and releases brakes continuously when actually it’s only you who pressed the brake pedal? I will tell it all. Source: http://home.iitk.ac.in nti lock braking system is made up of a central (ECU) Electronic Control Unit and four wheel speed sensors connected to each wheel of vehicle and two hydraulic valves located in the brake hydraulics. The electronic control unit monitors the rotating speed of four wheels on a constant basis and when this system finds a vehicle wheel rotating speed slower than the other three, where a situation arises such as an impending wheel lock, here the ABS system causes the valves...
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...disturbed by anything. But this visual image will soon change, as suddenly everything is “swept away by wheat’, meaning that this peacefully countryside is intervened by human activity. This creates an image of nature suddenly being attacked and confronted with mankind and its intentions. The changing of fields into wheat plantation is an example of one of many mankind’s’ intention (this being colonization and industry). The author also uses contracting tone in order for her to convey feelings about human destruction. Like with the visual imagery, the tone of poem is very happy and serene, as nature is free to do whatever it wants. This is shown by using words like “tossing, blooming” and perfumed grass “ which create this freedom which nature has. But this freedom of nature shall soon be confronted with mankind as suddenly “the locomotives sing”, which shows signs that humans are intervening with the harmony of nature. As now loud locomotives are now in the same environment as nature. The tone of the poem shall...
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...their own gain, and/or financial development. Can lead to massive growth in middle classes. Political Philosophy is aimed at analysing how a society works and how they are governed by a ruling power. It seeks to evaluate the different ethical and political standpoints in different political parties, and analyse how they affect the citizens of the country/state. Some key ideologies include; Conservatism Tradition and custom is more important than change, unless change is desperately needed. Will tend to view human nature as innately selfish. It is government’s job to create legislation in order to provide a secure and supportive social context in which people can realise their full potential. Concentrates on maximising Positive Freedom. If Thomas Hobbes had lived in the modern era, he would probably have been conservative. Liberalism...
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...and/or drug driving. It happens more to younger people, the reason for this is because of their will of freedom and being more open to the new world causes them to be wreckless and perr presure can bring them down as well. Around 1000 drivers are caught drink driving and just under half of that, are the amount of deaths caused by drink driving. The analysis showed, 11 per cent of fatalities in recent years were attributable to driving under the influence of illicit drugs and 15 per cent to driving under the influence of alcohol. Last year 309 people died on NSW roads , the lowest annual total since 1923. Drug and drink driving that needs to be stoped and put to comrinise to help keep the lives of people driving and others on the road. So if you're out drinking or getting high as a kite, have a dezo (designated driver, sober driver) to take care of you, make sure you don't do anything wreckless and to take you home if needed to. If you can't get someone to take you home or you've had too much to drink or, just walk it home, or catch a late bus or call a...
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...other essay. In addition, to just the format differences between essays, also the content difference between the essays is a huge difference and a template makes sure the writer is aware of this . Some might object, of course, on the grounds that having templates is making writing to easy for writers and not forcing them to think on their own. Yet I would argue that templates do not make writing easier, it still makes the writer focus on the muscle memory of the format by practicing the writing format and still forces the writer to come up with there own word choice and story to tell. Overall, then, I believe that the usage of templates are an important tool for teaching beginning writers, templates allow writers to have all the creative freedom while still making sure they have the correct format for an argumentative...
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...dwellers and given them access to the same opportunities and experiences. Automobiles have given us motels, shopping malls, drive-through, vacations, commuting, and of course, suburbia. The word automobile was coined by 14th century Italian painter & engineer named Martini. Martini never built an automobile but he did draw plans for a man-powered carriage with four wheels. Martini thought up the name automobile from the Greek word, "auto," (meaning self) and the Latin word, "mobils" (meaning moving). The automobile as we know it was not invented in a single day by a single inventor. The history of the automobile reflects an evolution that took place worldwide. It is estimated that over 100,000 patents created the modern automobile. However, we can point to the many firsts that occurred along the way. An automobile, motor car or car is a wheeled motor vehicle used for transporting passengers, which also carries its own engine or motor. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to eight people, to typically have four wheels, and to be constructed...
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...waves, so they (surfers) took to the sidewalks. Sidewalk surfing comes along in 1958 and in 1959 “Roller Derby” is the first to mass produce skateboards with metal wheels (Britannica School.) Though skateboarding is big business today, it started from simple means with a 2x4...
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...lecture you just for going a little bit too fast. Finally, when you are ready, you take the nerve-wrecking driving test where, if you are unlucky, your driving examiner would be a grumpy looking man who looks so strict you lose your nerve and start making silly mistakes. However, after going through the pain and hardships, you finally do it. You get your license and you get a little taste of freedom. No more having your mother pick you up after school or getting a ride with your dad who might sometimes embarrass you in front of your friends. Unfortunately, once you start driving, everything you have learnt went out the window. You drive with your radio turned up, you rarely turn your head all the way to the back when changing lanes, and the worst habit of all, you start texting and even talk on the phone while you are driving. The advancement of technology has made different forms of communication so easily accessible. Social media is such a huge part of us and it is all in the palm of our hands. Sure, it is a good thing that it is so convenient for us but doing all that while behind the wheel is neither the time nor the place for that. Texting or using any electronic devices for that matter, while driving is really dangerous for so many reasons and in spite of our addiction to it, it should be banned or even made illegal. We live in a fast-paced society and because of that, we are wired to constantly get things done quickly and if possible, perform many tasks at once. We would...
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...Shared by: http://hello-engineers.blogspot.com/ Artificial Intelligence - An Introduction to Robotics Tim Niemueller and Sumedha Widyadharma July 8, 2003 Abstract This document gives a short introduction to the basics of robotics in the context of artificial intelligence. It describes the very basics of robotics like sensors and effectors, gives an overview on robotic history, and introduces some basic problems encountered in modern robotics. It describes possible solutions to those problems without going deeply into theory. The problems introduced are perception, basic pose description, transition and sensor models, localization as a special case of perception (Monte Carlo Localization, Extended Kalman Filter), representation of environment (workspace and configuration space), path planning (cell decomposition, potential fields, skeletonization, Voronoi diagrams, and probabilistic roadmaps), movement of robots, and some real-life examples. This document was created accompanying a talk in the context of the proseminar "Artificial Intelligence" in summer semester 2003 at the RWTH Aachen, Chair of Computer Science V, Knowledge-based Systems Group. 1 1.1 Introduction Capek and his Robots The term "Robot" can be traced back to Karel Capek's play "R.U.R. Rossum's universal robots" (in 1921) that comes from the Czech word for "corvee". 1.2 A brief History of Robots Robotics are based on two enabling technologies: Telemanipulators and the ability of numerical control...
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