DEVELOPING BUSINESS PROCESSES & OPERATIONS Essay

DEVELOPING BUSINESS PROCESSES & OPERATIONS - Essay Example In addition, operations management provides an organization with the criteria for imposing by the market where company operates, according to Slack, Alistair and Robert (2013). Bamford and Forrester (2010) define the aim of operations management to cover the process of decision making and enable organization to develop its strategies. It strives to allow the company to satisfy the needs of stakeholders, foster the long-term success and understand how, where and what for the operations should be located, its resources and relationships are established. To be effective in terms of product or service design, developing or manufacturing, delivering and satisfying customers’ needs, an organization or company needs to efficiently manage its operations that would enable it to achieve more benefit from the services and products its produces. Moreover, high quality of these products and services and cost-available position should also be taken into account. For that purpose operational management is an important line management as it helps organization to display its best performance through coordinating and controlling of the resources needed for design, production and operation of business that at the same time give a company to obtain the highest level of efficiency and value add (Waters & Waters, 2002). Operational management of Swedish company that designs and sells ready-to-assemble furniture, appliances, small vehicles and home accessories is the best example of how its effective management led to the success. One of the world’s largest furniture retailers, the turnover of the company is close to four billion dollars. The company’s major idea is to provide the high-quality furniture and accessories at a low price to enable each individual to purchase them. Ikea is also known for its sophisticated design, logistics and distribution concepts (Larcon,

International Law. Midterm Assignment Example | Topics and Well Written Essays - 1000 words

International Law. Midterm - Assignment Example International protocol, agreement, pact, exchange of letters, convention or covenant are all synonyms for treaties (Alvarez, 2005). Therefore, all these types of agreements are considered to be treaties under international law. Thus, the rules applied to treaties are the same ones applied to these terminologies. On its basic form, a treaty is the same as a contract: willing parties have voluntarily assumed duties and obligations between or among themselves (Klabbers 87). Consequently, under international law, a party which does not oblige to the agreements is held liable. The subject coverage of treaties in recent times has expanded considerably (Milner 342). This is in line with the need for international promotion and protection of concepts such as education, human rights, environment, the global heritage and wildlife (Moore, Gerald K & Witold Tymowski, 2005). Additionally, treaties have been necessitated by the emergence of global security concerns such as terrorism. The UK Swiss confederation taxation cooperation agreement is a treaty between the United Kingdom and Switzerland. The agreement came into force on January 2013. The agreement clarified the relationship between Switzerland and the EUSA (EU savings agreement).The second treaty is the 1979 Egypt Israeli peace treaty. This agreement implied that the two nations agreed to recognize each other. As such, the treaty required the state of Israel to withdraw or remove its army from Egypt’s Sinai Peninsula. As a result, Egypt would allow Israel ships to pass through the Suez Canal. Lastly , the 2014 convention on the manipulation of sports competitions is among the latest treaties or agreements. The convention advocated by the council of Europe is aimed at fighting instances of match fixing in the world’s sports. Since treaties are non-permanent binding agreements, sovereign nations or international organizations can

The history of robotics

The history of robotics Abstract: The project gives a brief introduction to the history of robotics while going on to explain the various types of robots that are built and their classification. A detailed description of the various mechanical platforms and driving mechanisms has been provided. The commonly used robotic designs have also been looked into and their characteristics have been explained. Finally, the fabrication process of the robotic gripper has been studied and explained. Grippers are key components in robotized assembly system. 1. Introduction The design and construction of highly dexterous robot hands has been a major research and development objective for at least the past two decades. Many of the above robot hands have the general objective of achieving a high degree of dexterity in a wide variety of situations, and this generality in their objective may sometimes lessen their effectiveness in specific classes of applications. This project focuses on the development of a universal robot gripper. The gripper utilizes a2minimal amount of hardware, and can be employed in a wide variety of pick-and-place applications with minimal changes to the mechanical and control program configurations. The gripper is the mechanical interface between the robot and its environment. The robot performs the pick-and-place functions needed for assembly tasks. As with other peripheral equipment, grippers should have sufficient versatility to deal with the variety of parts an assembly robot has to handle. This project focuses on strategies for fabrication of an effective gripping device. The main section of the project covers the introduction for fabrication of grippers. 2. History Machines and mechanization are the ancestors of todays robots. The ancients started with things like water clocks and irrigation equipment. Later, windmills and water wheels turned gears and equipment to help produce a product. These ancient machines did tasks with or without human help. Industrialization made use of heavy mechanization to mass produce merchandise. In the 20th century, machines took some form of intelligence. They were able to work independently, solve problems and execute solutions. Cybernetics involved improving robot intelligence. Today, robots explore sea floors, wander inside caves, explore and study other planets and build cars. Leonardo da Vinci created many robot-like sketches and designs in the 1500s. The word robot first appeared in print in the 1920 play R.U.R. (Rossums Universal Robots) by Karl Kapek, a Czechoslovakian playwright. Robota is Czechoslovakian for worker or serf (peasant). Typical of early science fiction, the robots take over and exterminate the human race. 1954: The first programmable robot is designed by George Devol, who coins the term Universal Automation. He later shortens this to Unimation, which becomes the name of the first robot company (1962). Isaac Asimov popularized the term robotics through many science-fiction novels and short stories. Asimov is a visionary who envisioned in the 1930s the positronic brain for controlling robots; this pre-dated digital computers by a couple of decades. Unlike earlier robots in science fiction, robots do not threaten humans since Asimov invented the three laws of robotics: A robot may not harm a human or, through inaction, allow a human to come to harm. A robot must obey the orders given by human beings, except when such orders conflict with the First Law. A robot must protect its own existence as long as it does not conflict with the First or Second Laws. Joseph Engleberger and George Devoe were the fathers of industrial robots. Their company, Unimation, built the first industrial robot, the PUMA (Programmable Universal Manipulator Arm, a later version shown below), in 1961. 1980s: The robot industry enters a phase of rapid growth. Many institutions introduce programs and courses in robotics. Robotics courses are spread across mechanical engineering, electrical engineering, and computer science departments. 3. Types and classification of robots. Industrial robots are available commercially in a wide range of sizes, shapes, and configurations. They are designed and fabricated with different design configurations and a different number of axes or degrees of freedom. These factors of a robots design influence its working envelope 4. Common Robot Designs 4.1. Cartesian Robots which have three linear (prismatic joints P, as opposed to rotational R joints) axes of movement (X, Y, Z). Used for pick and place tasks and to move heavy loads. They can trace out rectangular volumes in 3D space. 4.2. Cylindrical The positions of these robots are controlled by a height, an angle, and a radius (that is, two P joints and one R joint). These robots are commonly used in assembly tasks and can trace out concentric cylinders in 3D space. 4.3. Spherical Spherical robots have two rotational R axes and one translational P (radius) axis. The robots end-effectors can trace out concentric spheres in 3D space. 4.4. Articulated The positions of articulated robots are controlled by three angles, via R joints. These robots resemble the human arm (they are anthropomorphic). They are the most versatile robots, but also the most difficult to program. 4.5 SCARA (Selective Compliance Articulated Robot Arm) SCARA robots are a blend of the articulated and cylindrical robots, providing the benefits of each. The robot arm unit can move up and down, and at an angle around the axis of the cylinder just as in a cylindrical robot, but the arm itself is jointed like a revolute coordinate robot to allow precise and rapid positioning. The robot consists of three R and one P joints; an example is shown below. We will mostly deal with robotic arms; some other interesting types of robots are mobile robots, humanoid robots, and parallel robots. 4.6. Mobile robots Mobile robots have wheels, legs, or other means to navigate around the workspace under control. Mobile robots are applied as hospital helpmates and lawn mowers, among other possibilities. These robots require good sensors to see the workspace, avoid collisions, and get the job done. 4.7. Parallel robots Most of the robots discussed so far are serial robots, where joints and links are constructed in a serial fashion from the base, with one path leading out to the end-effector. In contrast, parallel robots have many legs with active and passive joints and links, supporting the load in parallel. Parallel robots can handle higher loads with greater accuracy, higher speeds, and lighter robot weight; however, a major drawback is that the workspace of parallel robots is severely restricted compared to equivalent serial robots. Parallel robots are used in expensive flight simulators, as machining tools, and can be used for high-accuracy, high-repeatability, high-precision robotic surgery. 5. Mechanical platforms the hardware base A robot consists of two main parts: the robot body and some form of artificial intelligence (AI) system. Many different body parts can be called a robot. Articulated arms are used in welding and painting; gantry and conveyor systems move parts in factories; and giant robotic machines move earth deep inside mines. One of the most interesting aspects of robots in general is their behavior, which requires a form of intelligence. The simplest behavior of a robot is locomotion. Typically, wheels are used as the underlying mechanism to make a robot move from one point to the next. And some force such as electricity is required to make the wheels turn under command. 5.1. Motors A variety of electric motors provide power to robots, allowing them to move material, parts, tools, or specialized devices with various programmed motions. The efficiency rating of a motor describes how much of the electricity consumed is converted to mechanical energy. Lets take a look at some of the mechanical devices that are currently being used in modern robotics technology. DC motor: Permanent-magnet, direct-current (PMDC) motors require only two leads, and use an arrangement of fixed- and electro-magnets (stator and rotor) and switches. These form a commutator to create motion through a spinning magnetic field. AC motor: AC motors cycle the power at the input-leads, to continuously move the field. Given a signal, AC and DC motors perform their action to the best of their ability. Stepper motor: Stepper motors are like a brushless DC or AC motor. They move the rotor by applying power to different magnets in the motor in sequence (stepped). Steppers are designed for fine control and will not only spin on command, but can spin at any number of steps-per-second (up to their maximum speed). Servomotors: Servomotors are closed-loop devices. Given a signal, they adjust themselves until they match the signal. Servos are used in radio control airplanes and cars. They are simple DC motors with gearing and a feedback control system. 5.2 Driving mechanisms Gears and chains: Gears and chains are mechanical platforms that provide a strong and accurate way to transmit rotary motion from one place to another, possibly changing it along the way. The speed change between two gears depends upon the number of teeth on each gear. When a powered gear goes through a full rotation, it pulls the chain by the number of teeth on that gear. Gears are most often used in transmissions to convert an electric motors or in this case the drive shafts high speed and low torque to a shafts requirements for low speed high torque. Gears essentially allow positive engagement between teeth so high forces can be transmitted while still undergoing essentially rolling contact. The basic law of gearing says that a common normal (the line of action) to the tooth profiles at their point of contact must in all positions of the contacting teeth; pass through a fixed point on the line-of-centers called the pitch point. As such any two curves or profiles engaging each other and satisfying the law of gearing are conjugate curves, and the relative rotation speed of the gears will be constant. A gear train is a set or system of gears arranged to transfer rotational torque from one part of a mechanical system to another. Gear trains consists Driving gears it is attached to the input shaft Driven gears or Motor gears it is attached to the output shaft Idler gears it is interposed between the driving and driven gear in order to maintain the direction of the output shaft the same as the input shaft or to increase the distance between the drive and driven gears. A compound gear train refers to two or more gears that are used to transmit motion. Alternatively pinion is the smaller of the two gears (typically on the motor) drives a gear on the output shaft. A gear or wheel is the larger of the two gears. Gears are generally used for one of four different reasons: To reverse the direction of rotation To increase or decrease the speed of rotation To move rotational motion to a different axis To keep the rotation of two axis synchronized Pulleys and belts: Pulleys and belts, two other types of mechanical platforms used in robots, work the same way as gears and chains. Pulleys are wheels with a groove around the edge, and belts are the rubber loops that fit in that groove. Gearboxes: A gearbox operates on the same principles as the gear and chain, without the chain. Gearboxes require closer tolerances, since instead of using a large loose chain to transfer force and adjust for misalignments, the gears mesh directly with each other. Examples of gearboxes can be found on the transmission in a car, the timing mechanism in a grandfather clock, and the paper-feed of your printer. Power supplies Power supplies are generally provided by two types of battery. Primary batteries are used once and then discarded; secondary batteries operate from a (mostly) reversible chemical reaction and can be recharged several times. Primary batteries have higher density and a lower self-discharge rate. Secondary (rechargeable) batteries have less energy than primary batteries, but can be recharged up to a thousand times depending on their chemistry and environment. Typically the first use of a rechargeable battery gives 4 hours of continuous operation in an application or robot. There are literally hundreds of types and styles of batteries available for use in robots. Batteries are categorized by their chemistry and size, and rated by their voltage and capacity. The voltage of a battery is determined by the chemistry of the cell, and the capacity by both the chemistry and size. 6. Degrees of freedom The term degree of freedom relates to locating or positioning of a body in space. A body in space has six degree of freedom since it can translate linearly along three mutually perpendicular axis and rotational movements about the same three axes. Three linear movements allow the body on the end effectors of the robot to move a desired position in space and three rotational movements allow the body to be oriented about that position. The term degree of movements relates to the number of axis in which the robot may move in one particular robot configuration. Regardless of the configuration of a robot, movement along each axis will result in either a rotational or a translational movement. The number of axes of movement (degrees of freedom) and their arrangement, along with their sequence of operation and structure, will permit movement of the robot to any point within its envelope. Robots have three arm movements (up-down, in-out, side-to-side). In addition, they can have as many as three additional wrist movements on the end of the robots arm: yaw (side to side), pitch (up and down), and rotational (clockwise and counterclockwise). 7. Mechanical design of the Gripper 7.1. General Design Description The mechanical design of the robotic gripper needed to address the required interaction between the robot and the environment in order to grasp and hold the object securely and to execute the operation. When objects to be grasped are of different shape and size the friction method is normally used whereby the part is restricted from moving by the friction present between the fingers and the object. In this way the fingers exert sufficient force to hold the part against gravity, acceleration and any other force that might arise during the holding portion of the work cycle. This is achieved through a mechanical design that incorporates multiple fingers and multiple joints per finger, through the installation of proximity and force sensors on the gripper, and through the employment of innovative and practical control system architecture for the gripper components. The gripper is installed on a standard six degree-of-freedom industrial robot, and the gripper and robot control programs are integrated in a manner that allows easy application of the gripper in an industrial pick-and-place operation. The gripper or the end effector constitutes the end of the kinematic chain of an industrial robot and makes possible the interactions with the work environment. Although universal grippers with wide clamping ranges can be used for varied object shapes, in many cases they must be adapted to specific work-pieces shapes. A robotic end effector is the hand of the robots arm. By attaching a tool to the robot flange (wrist), the robotic arm can then perform designated tasks. Examples of robotic end-effector include robotic grippers, robotic tool changers, robotic collision sensors etc. In many case, the robotic end effector requires additional power supplies to operate. It depends on the type of functions the end-effector perform, the popular one is the pneumatic, because it is easier to supply air to the end of a robot arm and. The only disadvantages of pneumatics are that it has a slightly lower power to weight ratio than hydraulics and it is not as controllable or easy to feed as electricity. For certain applications some degree of sensory feedback from the gripper is necessary. For examples, the insertion or gripping forces measurement, proximity sensor to detect the presence of objects between the jaws of the gripper, collision detection unit which attaches between the robot flange and the end effector so that if excessive force is applied to the tool the robot arm will stop. 7.2 Robot -End Effectors: End Effectors is the part that is connected to the last joint of a manipulator which generally handles objects, makes connection to other machines or performs the required tasks. Robot manufacturer generally do not design or sell end effectors. The hand of the robot has provision for connecting special end effectors that are specifically designed for a purpose. The robot end-effector or end-of-arm tooling is the bridge between the robot arm and the environment around it. Depending on the task, the actions of the gripper vary. A robotic end-effector which is attached to the wrist of the robot arm is a device that enables the general-purpose robot to grip materials, parts and tools to perform a specific task. The end-effectors are also called the grippers. There are various types of end-effectors to perform the different work functions. The various types of grippers can be divided into the following major categories. Mechanical grippers Hooking or lifting grippers Grippers for scooping or ladling powders or molten metal or plastics Vacuum cups Magnetic grippers Others: Adhesive or Electrostatic Grippers The grippers can be classified into, Part handling grippers Tools handling grippers Special grippers The part handling grippers are used to grasp and hold objects that are required to be transported from one point to another placed for some assembly operations. The part handling applications include machine loading and unloading, picking parts from a conveyor and moving parts, etc. There are grippers to hold tools like welding gun or spray painting gun to perform a specific task. The robot hand may hold a deburring tool. The grippers of the robot may be specialized device like remote center compliance (RCC) to insert an external mating component into an internal member, viz. inserting a plug into a hole. The other type of end-effectors employs some physical principal like magnetism or vacuum technology to hold the object securely. 7.2.1 Classification of End-effectors: An end effector of a robot can be designated to have several fingers, joints and degrees of freedom. Any combination of these factors gives different grasping modalities to the end-effector. The general end-effectors can be grouped according to the type of grasping modality as follows, Mechanical fingers Special tools Universal fingers 7.2.1.1 Mechanical Fingers: They are used to perform some special tasks. Gripping by mechanical type fingers is less versatile and less dexterous than holding by universal fingers as the grippers with mechanical fingers have fewer numbers of joints and lesser flexibility. The grippers can be sub grouped according to finger classifications like two, three and five-finger types. The two-finger gripper is the most popular. Robot end-effectors can be classified on the basis of the mode of gripping as external and internal gripping. The internal gripping system grips the internal surface of objects with open fingers whereas the external gripper grips the exterior surface of the object with closed fingers. Robot end-effectors are also classified according to the number of degrees of freedom (DOF) incorporated in the gripper structures. Typical mechanical grippers belong to the class of 1 DOF. A few grippers can be found with more than 2 DOF. Using some special tooling action, robot grippers can be designed to retain objects by electromagnetic action or under the action of vacuum. Electromagnets and vacuum cups are typical devices in this class. Usually, if the objects to be handled are too large and ferromagnetic in nature, electromagnetic grippers may be employed. In some applications where the objects are too thin to be handled, they can be held by vacuum grippers. 7.2.1.2 Universal Fingers: Usually comprise multipurpose grippers of more than three fingers and or more than one joint on each finger which provide the capacity to perform a wide variety of grasping and manipulating assignments. 7.2.1.3 Mechanical Gripper: A mechanical gripper is an end-effector that uses mechanical fingers actuated by a mechanism to grip an object. The fingers are the appendages of the gripper that actually makes contact with the object. The fingers are either attached to the mechanism or an integral part of mechanism. 7.3. Types Of Grippers 7.3.1. The Clapper The Clapper can be built using metal, plastic or wood. It consists of a wrist joint. Connected to the wrists are 2 plastic plates. The bottom plate is secured to the wrist and the top plate is hinged. A small spring-loaded solenoid is positioned between the two plates. When solenoid is active, the gripper is closed and when solenoid is not active, the gripper is open. The choice of solenoid is important. It must fit between the 2 flaps and should have a flat bottom to facilitate mounting. It must operate within the voltage used in your robot (usually 6V or 12 V). If solenoid doesnt have mounting flanges opposite the plunger, mount it in the center of the bottom flap using household cement 7.3.2. The Two Pincher Gripper The two-pincher gripper consists of two movable fingers, somewhat like the claw of a lobster. In todays industry the two-finger mechanical grippers with a single degree of freedom are the most usual used device. The fingers have symmetrical motions with respect to the gripper axis. A particular category of grippers for industrial robots has two degrees of freedom and a single driving motor. The relative positions of the component elements depend on the frictional coefficients between work piece and fingers and on the initial position of the work piece with respect to the grippers frame. 7.4 Development and Fabrication of the Two Pincher Gripper 8.Scope For Further Work 9. Conclusion: The Robotic Gripper is essentially a vital part of robot design. In its history it was simple and sometimes ineffective but day by day modern advances have been inputted to such robotic systems which have proved to be highly efficient, effective and versatile. A flurry of innovations and developments is on the agenda in context of robotics designs of the future. Major manufacturers are constantly striving to improve existing technology as RD divisions focus on figuring out ways and means to conjure up better and simpler forms of robots. Other such technologies that have been significantly improved in robotic designs are in: Agriculture Automobile Construction Entertainment Health care: hospitals, patient-care, surgery, research, etc. Laboratories: science, engineering, etc. Law enforcement: surveillance, patrol, etc. Manufacturing Military: demining, surveillance, attack, etc.1` Mining, excavation, and exploration Transportation: air, ground, rail, space, etc. Utilities: gas, water, and electricity With such advances in technology the future of robotics design seems promising. 10. References: Books: Stan Gibilisco, Concise encyclopedia of Robotics Klafter D Richard; Robotic Engineering An Integrated Approach, 1st Edition, 1989. Craig J John, Introduction to Robotics Mechanics and Control, 3rd Edition, Pearson Education, Inc, 2005. Schilling J Robert, Fundamentals of Robotics Analysis and Control, 1st Edition, Prentice Hall, 1990.

The Epidemic of Steroid Abuse in America Essay -- Athletic Athletes Sp

The Epidemic of Steroid Abuse in America We as a people are preoccupied with the notion of greatness. Our role models are athletes, actors and actresses, and other figures in the public eye. Many of us often desire to be better off than our current state; to look better, to be in better shape, etc†¦ We compete with each other for jobs, for mates, for grades, for parking spots, and in sporting activities. This competitive nature is a way of life, especially in sporting activities, often learned as a child and built upon throughout adulthood. But where do you draw the line? At what point do the â€Å"costs† of winning or being â€Å"better† outweigh the benefits? Maybe it’s too much when you start putting your own health in serious jeopardy just to look better or run faster. The use of steroids, other than for medical purposes, has extremely negative effects on one’s health. Nonetheless the use of steroids, to enhance athletic performance and increase muscle mass, is on the rise. There needs to be mandatory steroid testing in all professional, and where applicable, amateur sports. Steroid testing is a good as start as any to help curb steroid abuse. Anabolic-Androgenic steroids, often solely called anabolic steroids, are: â€Å"chemicals that act like hormones--substances normally in your body that regulate bodily functions† (Kowalski 1). They are synthetic substances, meaning man-made, which have two functions: the anabolic effect which causes an increase in the growth of muscle mass and the androgenic effect which causes, or increases, the development of male sexual characteristics. It’s the anobolic effect that most steroid users, or abusers, are after. Steroid abusers take steroids for a couple of different reasons.... ...pac.library.csupomona.edu/>. Sherman, William. â€Å"Growing Nightmare of Steroid Abuse: Athletes’ Cocktail Big in Nation’sGyms.† Daily News (New York). 28 July 2002, Sports Final ed.: p. 4. Lexis Nexis 4 Nov. 2002. . United States. Consumer Affairs, Tourism and Foreign Commerce Subcommittee of the Senate Commerce, Science and Transportation Committee. Hearing. Washington D.C.: Senate Office Building, 2002. Lexis Nexis 4 Nov. 2002. . Verducci, Tom. â€Å"Totally Juiced.† Sports Illustrated. 3 June 2002, V. 26: No. 93. Wilson Web Article Index 4 Nov. 2002. . Yesalis, Charles E., and Virginia S. Cowart. The Steroids Game. Illinois: Human Kinetics, 1998.

Riding a Bike vs Driving a Car

Brian Morris Dr. Bunnell 11/25/2012 Revised Draft Compare/Contrast Essay Young children always hit that age where all they want to do is learn how to ride a bike; well for the most part young children. They pray for a new bicycle for Christmas and the day hits them like homework on a school night, that they most likely forgot about. Many have the audacity to try to learn without training wheels, but usually fail. Over time they start to realize there are bigger and better things in life such as learning how to drive a car. They constantly beg their parents to let them practice driving or to get their hands on a pair of new car keys.Both learning how to drive a car and learning how to ride a bicycle surprisingly have many differences as well as similarities. Learning how to ride a bike starting off to some may seem easy, but is generally difficult to most. Learning this is one of the most popular as well as important tasks to growing up. One's body is simply not used to the gravitatio nal pull and balance when their feet begin liftoff, ending at the landing zone of the foot pedals. Most require the assistance of training wheels to begin practice of riding a bike. With these, there is a total of four wheels, making little to no individual balancing skill.Training wheels also help people learn to control their pedaling speed, movement, and turning. Once training wheels are taken off, the true test to be passed is about to begin. These next few steps to riding a bike with perfection are much different than learning how to drive a car. Stumbling and falling over is a constant problem when starting to ride a bike. On the other hand, a person cant fall over when driving in a car! With practice, learning to ride in a straight line eventually is a â€Å"piece of cake†. Next is learning how to turn while pedaling forward. The trick is not to lean one's entire body while turning.This will simply makes people lose their balance and therefore, fall. Again, practice is key to be able to turn correctly with a stabilized balance. Finally, braking is the final thing to learn. This is the simplest, and can be done with little practice. Brakes are located by the handlebars on a bicycle, while the brakes are located by the feet when driving. Some people say learning to sync one's feet to use the brakes in a car is like learning how to write with another hand. When one can fully ride a bicycle, there are huge advantages and differences over driving a car.First, people can get fit from riding a bicycle around! Sitting in a car seat instead of pedaling with legs is not going to help someone lose weight. Yet another difference between the two is cars release pollutants into the atmosphere, while bicycles release 100% clean energy. Teenagers go crazy the day they hear, â€Å"Congratulations, you passed your drivers exam†. To be able to hear those magic words, it takes true time and dedication. The day a teenager obtains their learners permit, their w orld changes. They start obsessing about learning how to drive but there are abilities that need to be learned.First, they must learn how to properly use the gas and brake pedals. This may be one of the easiest to some, but the hardest to others. A common error is confusing the brake between the gas which can be extremely drastic. Next, they must learn how to turn, and to be able to understand their surroundings. Drivers need to know much more about their surroundings, than bicyclists in general. There are literally hundreds of street signs that must be interpreted to get a drivers license. On the contrary, there are little to no street signs used for bicyclists, except in some areas.Finally, practicing to drive in a variety of weather conditions are the final skill that must be achieved to be a good driver. Snow and rain are the major weather types that make driving, as well as bicycling difficult. Driving a car legally is a privilege and truly has distinct differences. One major d ifference between riding a bike and driving a car, is that when driving, there is a lot more practice involved. There are also no licenses or permits for riding a bicycle. Using a bicycle as a form of transportation is much cheaper, being that the average bicycle is $40-$1000, while the average car generally ranges from $750-$25,000.Another difference is that in driving, there are many more aspects to take into consideration that require attention. On the other hand, there are multiple similarities between driving a car and riding a bike. The main one is that with time and dedication, both of these abilities can be achieved. Also, major coordination as well as focus is necessary to be able to do either tasks. Finally, there needs to be a form of assisting, such as parents or a friend to teach someone how or to practice driving/riding a bike. How can these two topics relate to an adults life?Both of these also are a great form of transportation that have been used for years and many more to come. Drivers need to be wary about bicyclists, and vice versa. Cars as well as bicycles also need to be properly checked often on their tire pressure, and even brake lines. Driving on a flat tire or having worn out brake lines can be quite the unexpected occurrence. In conclusion, learning how to ride a bike and learning how to drive a car both have similarities while being two completely different skills. Riding a bike and driving a car are two forms of transportation although one is faster than the other.They both require a large amount of hand-eye coordination although bicycling requires more balance. Learning how to ride a bike is a milestone in a young child's life, while learning how to drive a car is a milestone in a teenager's life. A big part of learning how to ride a bike and learning how to drive a car is putting in the time and effort and getting enough practice. Without practice and determination, the skills needed for both activities would not be adequate enou gh for safe travel. Whether similar or different, learning how to ride a bike and learning how to drive a car are both essential lessons in one's life.

Film techniques

A shot Of a person landing to set a bomb in a building would for instance require the film maker to use a close up or better still an extreme close up to show the tense feeling in the characters' eye. Using a long shot in this scene will not clearly bring out the message since the long shot does not reveal details or emotions. Any motion picture is made up of basic elements of a sequence referred to as the shots. This paper illustrates how various shots are used in film making to form a sequence and to convey different messages.Extreme long shot It is usually referred to as an establishing shot. This is because it orients the ewer to the location. It is an opening shot that is used to tell the viewer the exterior environment that the film is taking place. It therefore describes the location of the scene that could be the outside buildings, a geographical landscape of a town or city among other locations. It normally reveals landscapes. Usually a viewer cannot clearly see a specific o bject in this kind of shot though he or she sees the environment.It answers the question ‘Where?. The extreme long shot can also be used to set the atmosphere of the scene. An extreme shot of an arid land with wind and dust blowing up into the air an tell the audience that the place is a dry atmosphere probably a desert scene. The shot can also be used to show a broad range of action. For example a battle of soldiers fighting each other can be captured using this shot so that no action is missed. Every action and element on set is to be seen since each MIS -en- scene tells a story.The actors on field fighting create suspense, the color on set could be used to relate the environment with a familiar one in the viewers' mind, the props could be used to effect the mood and so every miser-I-scene is captured using the extreme long shot. It is also known as the wide shot. Eng Shot (L S) It is usually taken with a wide-angle lens and at times referred to as the full shot. If the subj ect is a human being the shot usually display from head to toe without revealing much of the surroundings. This kind of shot usually establishes a relationship between the subject and its environment.In most cases it answers the question ‘Who' because it reveals the subject to the viewer. The shot identifies the character in the story. It is used to create an illusion of reality in the audiences' mind. It depicts an image in a manner that ill occur in real life. Take for instance when in real life a visitor walks in an office. The human eye just like the lens of the camera will first tale a wide look of the entire office, before looking at Mr.. X seated in the office chair then lastly the eye will start looking at small details such as the pen on the desk, files on the shelves and other tiny details.A long shot may at times be used to demean the subject because the subject appears smaller than the surrounding. Generally it sets in motion the audience's perception of time, plac e and logical action of the scene that is about to take place. Medium Shot (MS) A medium shot is usually used in conversations to establish the relationship between characters on stage. The shot does not demean the subject on the contrary it places the audience on equal footing with the subject. It therefore answers the question ‘what' because it shows the relationship between actors and events in the story.If the subject is a human being the shot shows from waist up to the head. A normal lens is used for shooting the medium shot. It is also used to smoothly bridge the jump between the L'S and the M. S so as to create an illusion of a mutinous Story in the mind of the viewer. A continuous Story depicts reality and leads to greater understanding of the story line. A two shot A two shot is a type of medium shot used in dialogue scene between two actors by having them both in the frame as they carry on their conversation. It is a common shot in interviews.It consists of two actor s standing or sitting next to each other or a variation of an over-dosshouses shot where one actor's back is closer to the camera than the other actor facing the camera. Close-up (CUE) It is the heart of the picture. This shot shows a part of the subject. For example, a close up of a hand of a human body or face or leg, or wristwatch on the arm. It is used to emphasize a character's emotion and can effectively be used to create suspense in the viewers' mind. This type of shot can also be used to show intimacy and warmth.The shot takes the viewer to the mind of the character and this way the audience is made to feel comfortable with the character on set. Extreme Close-Up (SEC) This shot is taken using a telephoto lens and is tighter than a close up shot. It shows a small detail that would otherwise be missed in a wider shot. It is armorial referred to as a detail shot that shows emotions to the audience. The SEC is also used to create some emotion in the viewer% eyes. For instance a scene of a person crying, this sad emotion will clearly be depicted if the viewer notices the tears falling from a subject's eyes.In most cases it answers the question ‘To what effect' because it depicts emotions. An extreme close-up can also be used to bring about the dramatic aspect of a story. For instance two characters quarrelling in a film, the editor might decide to use an SEC of a knife on the table to create anxiety in the viewer's mind. The viewer is left anticipating what will happen next in the conflict and how the knife will be used. The SEC can also be used to achieve the editing principle of duration and pace. It is used in creating high tempo in a story.For instance when the storyline is approaching end of its climbing action, the duration of the shots are usually short and the action is ramping up, this is the time when an SEC is effectively used. They set up the pace of the film. For example a scene that involves police chasing kidnappers, the editor would us e SEC combined with other shots but cut at a fast speed to intensify the action. In a film that's mainly a documentary focusing on nature, an extreme close up is used to show viewers even the tiniest of creatures such as crawling insects. This is because it tends to enlarge the image.A good example is The National Geographic documented series that uses the SEC to capture images that are out Of eyes reach unless one uses the telephoto lens. Reaction shot A reaction shot such as a smiling lady would depict emotions to the viewer during a conversation on set. This type of shots are also used to tell a characters' trait . Let can also be a cut away or cut in. A cut away is a shot that is not part of the main action but is related to the scene. For example a shot of a clock on the wall when people are talking in a room is a cut away.It can also be a cut -in which on the other hand is related to the main action. For example a shot that's a close up of a lady grin her face as she prepares a fish meal and another one of her hands washing the fish. These two types of reaction shots are used to add interest in the story and to kill monotony of action. The eye likes variety. They shot helps the viewer not to get bored as they add interest to the story. Arc shot A shot in which the camera is usually placed at a higher angle, and it rotates the subject in a semi-circle.This shot reveals new details about the background that the subject is standing on and is effectively used to glue the audience to the scene. The shot creates a dramatic feel to the scene while drawing the audience attention. Dutch shot This is a shot where the camera is deliberately tilted on its side, to create an oblique angle. It is often used to suggest disorientation, to create a dramatic effect, to portray uneasiness, to create a frantic mood or to show a harassers' intoxication. Was commonly used by German Expressionism.It is usually used to show the psychological uneasiness or tension in the subject being filmed. Camera angles can also be used to give a variety of shots that pass a message to the viewer. A camera angle refers to the relationship between the camera and the object being shot. They are used to draw emotional feelings to the audience, to help the audience in judging the character on set and even their personality. The Bird's-Eye view A scene is shot from directly overhead. The subject is made to look insignificant and very small.The shot creates an illusion in the viewers' mind that a character is powerless and out of control of the situation. Filmmakers use this shot in horror scenes to show a victims' desperate situation. For example a character running from murderers may want to hide in a basement of a building out of fear of being killed; the compression will take his/ her shot using the birds view shot to show the desperate state. A High angle shot This shot usually looks slightly down upon a subject. It is usually shot using a crane, a compression standing o n a hill, or on a raised surface.The subjects appear smaller than they actually are in real life or under normal eye level view. Just like the birds eye view shot, it is normally used to create an illusion in the viewers' mind that the character is powerless. For example a scene of a mum scolding a child, the child can be taken using a high angle to show the viewer that the mum is more powerful than the child. A low angle shot This shot looks up to a subject and it gives power to the subject. It is normally taken with a camera placed lower than the subject's eye or as low as the ground (The worms view).