Methods Of Evaluation Of Vehicle Aerodynamics

Methods Of Evaluation Of Vehicle Aerodynamics Part a) Different methods of evaluation of vehicle aerodynamics: In recent years aerodynamics of vehicle has gained a lots of attention because of the major use of negative lift (down force) principle which improves the performance of vehicles. Thus evaluating vehicle aerodynamics has become an important part of car engineering and it is no longer only limited to vehicles initial designing. Several method and tools are used in this process such as wind tunnel testing, computational fluid aerodynamics or track testing. Each of these tools has their special need for e.g.:- at initial design stage wind tunnel can be used and after car is built it can be tested on the track. In the following paragraphs i discuss three mostly used methods i.e. wind tunnel testing, CFD software and track testing. http://www.atzonline.com/cms/images/sh05-09-20.jpg Wind tunnel testing: In 1870s first wind tunnel was designed but until 1960s it was just meant to use for aeronautical purposes but once this method brought to use for automotive purposes, within no time it became an essential part of car developments and provided good environment for aerodynamic evaluation. In the wind tunnel testing method a geometrical shapes or models is mounted in the test section of wind tunnel and air is blown over or sucked through a duct by a fan or number of fans. To make measurements more accurate closely spaces vertical and horizontal air vane are used which smoothes the turbulent flow before it reaches the model. Usually, measurements are taken from a balance on which model is mounted and various visualisation techniques such as smoke and tufts are used to understand the affect of some geometric features on aerodynamic performance. Wind tunnel helps to acquire lots of data such as: Aerodynamic forces drag, lift, side force Variation of these forces and movements with yaw Vehicle cooling drag Affect of aero features Surface pressure distribution There are different types of wind tunnels which are as follows: LOW SPEED WIND TUNNEL also named as SUBSONIC WIND TUNNEL are of open return type or return flow in which air is moved with a propulsion system made up of a huge axial fan which helps in increasing dynamic pressure and thus helps to overcome viscous loss. In this type mach number is kept very low and speed is maintained up to 400 km/h http://en.wikipedia.org/wiki/Subsonic_and_transonic_wind_tunnel#Subsonic_tun)Staffordshire University logo HIGH SPEED OR TRANSONIC WIND TUNNEL is designed to reach the speed close to the speed of sound. Mach and Reynolds number both are important here due to viscous or in viscid interactions. As compared to subsonic wind tunnel, much large scale facilities and pressurized wind tunnels are used. (http://en.wikipedia.org/wiki/Subsonic_and_transonic_wind_tunnel#Subsonic_tunnel) SUPERSONIC WIND TUNNEL generates supersonic speed. In supersonic wind tunnel, high pressure ratio is required and to avoid occurrence of liquefaction or condensation drying or pre heating facility is required. http://upload.wikimedia.org/wikipedia/commons/thumb/f/f0/Supersonic-en.svg/400px-Supersonic-en.svg.png (http://reference.findtarget.com/search/supersonic%20wind%20tunnel/) HYPERSONIC WIND TUNNEL produces hypersonic flow field in test section. It runs with very high pressure ratio and like supersonic; hypersonic also requires pre heating facility. As compared to other types of wind tunnels, hypersonic wind tunnel has more challenges in its designing. Staffordshire University logo (http://commons.wikimedia.org/wiki/File:Langley_hypersonic_wind_tunnels.jpg) WIND TUNNEL SCALE: Model scale wind tunnel testing (MWT) plays an important role in aerodynamic development of motorsport vehicles, training and research though now it has been outmoded by CFD. wind_tunnel1 Figure: http://www.insightman.com/mag_photos/wind_tunnel1.jpg It is an ideal way to determine the affects of various features and body styles on aerodynamics of vehicles. In model scale testing, model lie between 30%,60%nand they can be be produced by various techniques such as fibre glass, stylist clay models, milled foam and rapid prototype models or a combination of all of these. Model scale testing doesnt needs high running cost as sophisticated test methods such as fitting a moving ground plane doesnt need high expense. In all, if styling method can be utilized than this testing method is a cheaper method to develop vehicle aerodynamics.Staffordshire University logo In spite of all, model scale testing has its own limitation such as: Ensuring geometric similarity: some special features can be difficult to model at small model scale. Reynolds number effects: Reynolds number (Re) of the flow around vehicles reduces with the reduction in scale which then requires an appropriate increase in the airflow. FULL SCALE WIND TUNNEL TESTING (FSWT):- FSWT has totally taken over MWT as it many problems faced during MWT are overcome by using full scale testing: It eliminates the effect caused due to Reynolds number. It totally avoids the cost of production of models. It helps to determine the influence of small geometric changes. Aerodynamics: Radical LMP2 in MIRAs Full Scale Wind Tunnel (http://www.mira.co.uk/Services/AerodynamicsMainPage.htm) COMPUTATIONAL FLUID AERODYNAMICS (CFD): It is a phenomenon or software used to improve the car aerodynamics. The software provides benefits from number crunching capability of computers used to solve the problems of fluid flow, heat transfer and related processes like chemical reactions with the use of simulations of fluid flow. The fluid here refers to a lot of substances as well which behave like fluids depending on the circumstances they are in, for example, winds blowing around buildings, cooling air flows in a laptop, drugs in asthma inhalers etc. It mainly focuses on affects made by pressure, temperature, density and the velocity of the fluids. It is powerful technique software with a wide range of applications. It is very commonly used software in automotive industry (the method has an ability to calculate the air flows around a vehicle or car), especially in motorsports because of the massive competition. It first came in light in 1990s.The software is now owned by Bar Honda Formula 1 team. The software has always been updated at times as the as the new computer technologies come in. since the software runs of a computer, the speed of the computer processor also plays an important role in improving the performance, in other words, more powerful the supercomputer, more accurate result of CFD process. As the time passes it has become cheaper and advanced.Staffordshire University logo Streamlines under a stock car (http://strangeholiday.com/oops/stuff/annurev.fluid.38.050304.092016.pdf) Working process of computational software is divided into phases: First of all, it divides the geometric structure of the object into a set of elements or cell which named as a mesh. The accuracy of the result of CFD totally depends upon the number of cells as higher their number is, more accurate result will be. Secondly, mesh representing volume occupied by the fluid is created. Now, when fluid flow comes into contact with the object, it gets separated into as many cells as possible. Then, computer starts finding out the problem it faced during the second phase. Besides this, it also set up a clear image of interaction of object and fluid flow. Finally, simulation is started and result obtained is analyzed. Staffordshire University logo INSTRUMENTED ROAD OR TRACK TESTING: This testing method has earned lots of popularity in short time as it a very cost effective testing method as all we need to perform this is good weather and cost of renting a track and instrumenting. Aerodynamic drag plays an important role to improve the performance (fuel consumption, speed) of car. These tracks are constructed especially for the vehicles which are new or are under research. The tracks are made under such circumstances that when testing a car it gives the most relevant or most accurate results. DSC_05442 Figure:http://www.speedsportlife.com/wp-content/2009/11/DSC_05442.JPG These tests are used to identify the different properties or aspects in different conditions such as traffic flow, weather (raining, dusty, snowing or at different wind flows) and time of day. The car is made run on the track at different and constant speeds to check the flow ratios with the help of the sensors fixed on both sides of the track. The sensors track the dynamic path of the car which give information about the flows and performance of the cars. The aerodynamic behaviour of the vehicle is then analyzed and the car is again made run on the track with improved or modified aerodynamic properties. Part 2Staffordshire University logo Computational Fluid Aerodynamics (CFD) The science that tries to verify a numerical solution to the equations that govern the fluid flow is called CFD (Computational Fluid Dynamics). In the recent years, CFD methods have been utilized as an important tool of design analysis within research organisation and industry with the help of supercomputers. In fact, science is now trying for the theoretical-experimental treatment so that results which are obtained in wind tunnel testing can be used to standardize and prove the numerical models. As everything have its dual aspects, so as CFD. It has its own lots of advantages and some disadvantages too which are discussed as follows: MERITS:- A large number of CFD simulations can be performed rapidly and of course it is way cheaper than making a real model and running it in a wind tunnel or an instrumented track. With CFD there is always a greater probability of getting design right first time before manufacturing the actual vehicle because overall concept and shape can be tested. CFD enables the designer to analyze and visualize the flow around the vehicle. It can be done a number of times to facilitate the design optimization. It is much cheaper than to perform a wind tunnel test. Auto optimization is the advanced form of CFD and is considered to be more accurate. In it computational methods that accesses mathematically the obtained results and makes changes to the configuration and the shape of the vehicle. It automatically selects the most suitable design. Automatic mesh deformation is one of the advancement in auto optimization. Performing computational optimization method and automatic mesh together, it is possible to explore geometry changes and the software alters the mesh along with the geometry. CFD technology helps to improve the aerodynamic performance of vehicles and also helps in reducing co2 emmision.Thus, this testing method not only serve a duty for automotive purposes but also helps in keeping environment pollution free. Staffordshire University logo Demerits: No doubt CFD is a best tool among all other ways of determining vehicle aerodynamics but scaling issues can create some limitations to it such as reduicton of transition from laminar to turbulent flows (e.g. boundary layers) or the calculation of separated flow and unsteady wakes.) CFD can make millions of calculations to achieve an accurate result but the final result can only be appropriate for some reasons like: non accurate or less accurate data, scientific knowledge base or reduction in number of calculations by supercomputer. So, there are more chances of making numerical errors since everything relays on computers. Besides this, approximation of result can cause Truncation errors and round off errors are also possible due to the word size available on a particular computer The bottom line is that solutions find by CFD rely upon user-defined elements like: grid generation and turbulence modelling, which will be soon an obstacle facing code developers. It is not yet possible to create full flow field model economically as in mostly vehicles the large scale flow regimes depends on inevitability of transition and turbulence. PART 3 25mph Pressure image:E:25MPH25mph Pressure.gif The pressure is very low (-21.71446) on upper and lower surface of wing .It is more (33.87485) on front tip of wing and also it is less( 23.76770) on front upper and lower surface, it also same on back upper and lower surface of wing. Velocity image:E:25MPH25mph Velocity.gif The velocity is very low (1.854647)on front tip of wing and it is high (6.536719) on upper and lower front surface of it. It is also same on back upper and lower surface of wing. Velocity is really low (9.658100) on lower surface and upper surface of wing but on mid portion of upper surface it is (7.317064) 45mph Pressure image: The pressure is very low (-16.66089) on middle upper and lower surface of wing .It is more (38.92842)on front tip of wing and also it is less( 23.76770) on front upper and lower surface, it also same on back upper and lower surface of wing. E:45MPH45mph pressure.gif Velocity image: The velocity is very low (2.634993)on front tip of wing and it is high (8.097410) on upper and lower front surface of it. It is also same on back upper and lower surface of wing. Velocity is really high (9.658100) on lower surface and upper surface of wing but on mid portion of upper surface it is (7.317064) E:45MPH45mph velocity.gif 65mph Pressure image:E:65MPH65mph pressure.gif The pressure is very low (-1.500165) on upper and lower surface of wing .It is more (33.87485) on front tip of wing and also it is less( 18.71413) on front upper and lower surface, it also same on back upper and lower surface of wing. Velocity image: The velocity is high (6.536719)on upper and lower front surface of wing. It is also same on back upper and lower surface of wing. Velocity is really high (9.658100) on lower surface and upper surface of wing but on mid portion of upper surface it is (7.317064) E:65MPH65mph velocity.gif 85mph Pressure image:E:85MPH85mph pressure.gif The pressure is very low (-16.66089) on upper surface and also low on lower surface(-11.60731) of wing .It is more (33.87485) on front tip of wing and also it is less( 23.76770) on front upper and lower surface, it also same on back upper and lower surface of wing. Velocity image: The velocity is high (8.097410) on upper and lower front surface of it. It is also same on back upper and lower surface of wing. Velocity is really high (9.658100) on lower surface and upper surface of wing but on mid portion of upper surface it is (7.317064) E:85MPH85mph velocity.gif Part 4: Conclusion: Staffordshire University logo As the technology improves day by day the things (automobiles) get cheaper, smaller (size) and advanced. Since there are a lot of ways of aerodynamic testing, but the CFD software is the best way of evaluating the aerodynamic performance of the car. There are a lot of thing which make CFD the best. Like we can also evaluate the aerodynamic performance of the car using methods like wind tunnels but using wind tunnels it becomes far more expensive (making arrangements for the sample model), whereas in CFD we just need a CAD model and everything is done more quickly than any other method. Also if the model needs any changes or modifications it is very easy as compared to making new models for wind tunnels.CFD is more affordable and there is no maintenance required whereas wind tunnels and instrumented tracks needs a lot of maintenance at the time of operation or when free. There are very less or no chances of any errors in CFD (since everything is done with the help of computer) only a human error could affect the results, whereas in the case of track testing and wind tunnels the probability of making errors is more as big machinery or equipments are used which are analyzed by humans (no doubt computers are more reliable). There are lots of models (heavy) which are dangerous to test in wind tunnels in full scale, whereas in CFD the simulation can be performed without worrying about anything. Using the mesh deformation makes the calculations more clear, one can focus on each and every single part the vehicle or model tested as compared to an overall result obtained from track testing or wind tunnels. It takes very less time to carry out the results. So CFD is the best method for testing the aerodynamic performance and it will become better and cheaper as the computers get more powerful and cheaper. Staffordshire University logo

Concepts in Brave New World

10/11/12 Journal Entry #5: HTRLLAP Concepts The concept of â€Å"vampires† is present in Brave New World because the men and women don’t respect each other in the area of romance. Men like Henry Foster just use girls like Lenina for sex. But having sex with multiple people is socially accepted in the World State. In Brave New World, symbolic vampirism is used because the men and women use each other to get what they want which is sex. They do not care about what the other person wants.An example is Lenina trying to seduce John, when he makes it clear he does not just want to have sex with her. John is the opposite of the men from the World State because when he was thinking about how pretty she was he told himself that it was a â€Å"destestable thought† (145). Acts of Communion, was shown in Lord of the Flies when the boys were having a feast after Jack had killed the pig. This was a failed meal because towards the end Simon gives his piece of meat to Piggy who asked for some, but Jack denied saying he didn’t hunt.Piggy replies with, â€Å"no more did Ralph, nor Simon† (74) and Simon, being the inherently good person, gives Piggy his piece of meat. The meal is a failure because Jack becomes furious over Simon’s actions. At the end, Ralph becomes â€Å"envious and resentful† (75) which shows that he is upset with how the boys are acting and later in the book, hunting becomes a negative thing because the boys end up killing Simon, mistaking him for the beast. The Bible is used in Lord of the Flies to describe Simon and Roger. Simon was the Christ figure throughout the book.He helped Ralph build the shelters when the other boys were off playing, he gave Piggy his food when Piggy asks about having a piece of meat and he is killed like a martyr. He is murdered by the boys and he is the first boy to die at the hands of the others. Simon was carried away by the ocean and the description of how he was carried away portr ayed him as an angel. The snake of the Garden of Eden was represented by Roger. Roger was always quiet and in the background. He threw rocks at the young boys, purely for fun and he was the boy who pushed the rock that killed Piggy and shattered the conch shell.The concept of â€Å"It’s All About Sex†¦Except Sex† is shown in Brave New World because Huxley uses sex as a way to show the character’s desires to have power over another person. Because all of the Alpha’s are equal, they want to feel somewhat above the other person. Sex throughout the story is also used by the women as a sense of freedom. They can be with any man and people do not make any judgment of them. Sex is also used as a release and freedom for the people. They take the soma and then the characters don’t have a care in the world and do whatever they please because of the effects of the soma. Concepts in Brave New World 10/11/12 Journal Entry #5: HTRLLAP Concepts The concept of â€Å"vampires† is present in Brave New World because the men and women don’t respect each other in the area of romance. Men like Henry Foster just use girls like Lenina for sex. But having sex with multiple people is socially accepted in the World State. In Brave New World, symbolic vampirism is used because the men and women use each other to get what they want which is sex. They do not care about what the other person wants.An example is Lenina trying to seduce John, when he makes it clear he does not just want to have sex with her. John is the opposite of the men from the World State because when he was thinking about how pretty she was he told himself that it was a â€Å"destestable thought† (145). Acts of Communion, was shown in Lord of the Flies when the boys were having a feast after Jack had killed the pig. This was a failed meal because towards the end Simon gives his piece of meat to Piggy who asked for some, but Jack denied saying he didn’t hunt.Piggy replies with, â€Å"no more did Ralph, nor Simon† (74) and Simon, being the inherently good person, gives Piggy his piece of meat. The meal is a failure because Jack becomes furious over Simon’s actions. At the end, Ralph becomes â€Å"envious and resentful† (75) which shows that he is upset with how the boys are acting and later in the book, hunting becomes a negative thing because the boys end up killing Simon, mistaking him for the beast. The Bible is used in Lord of the Flies to describe Simon and Roger. Simon was the Christ figure throughout the book.He helped Ralph build the shelters when the other boys were off playing, he gave Piggy his food when Piggy asks about having a piece of meat and he is killed like a martyr. He is murdered by the boys and he is the first boy to die at the hands of the others. Simon was carried away by the ocean and the description of how he was carried away portr ayed him as an angel. The snake of the Garden of Eden was represented by Roger. Roger was always quiet and in the background. He threw rocks at the young boys, purely for fun and he was the boy who pushed the rock that killed Piggy and shattered the conch shell.The concept of â€Å"It’s All About Sex†¦Except Sex† is shown in Brave New World because Huxley uses sex as a way to show the character’s desires to have power over another person. Because all of the Alpha’s are equal, they want to feel somewhat above the other person. Sex throughout the story is also used by the women as a sense of freedom. They can be with any man and people do not make any judgment of them. Sex is also used as a release and freedom for the people. They take the soma and then the characters don’t have a care in the world and do whatever they please because of the effects of the soma.

Hospitality Business Development Essay

Hospitality business development of hospitality industry analyses the aspects of the business growth and evaluate the developing process of the industry. In the eyes of Hassanien et al (2010), â€Å"Hospitality business development is a procedure of using external and internal resources of an organization to bring out some new product in the market for the customer. In the essay all points are discussed and argued on developing the hospitality industry by referencing through secondary data which includes books, journals and educational and websites has relates to the topic. Moreover, in the essay the research is systematically paragraphed, introduced issues are customer role, market research, and analysis of business development, designing of new products in the market and customers satisfaction for organizations in the hospitality industry. According to Jones & Merricks (1994), a customer is one who buys a product or consumes a service in terms of monetary exchange from any Organization or a company. According to Chervonnaya. o (2003) A set of behavoiur of the ustomer is concludes through its experience and effective interaction and effective performance of an individual which help them to achieve and fulfill the desire goal which defined as role of the customer in developing the business. The customer is the main focal point of any organization as in the increase competitive market. The feedback of the customer is very important, as they are the end users of the product. A long-term relationship with a customer creates a very good trust essentially, w hich is very important both for the customer and for the organization. It lows its transaction cost on the both side where as the wining a new customer cause more than maintaining and expanding the relationship with its existing customer. Thus, Hyatt’s groups of hotels offered to their regular guest a program, name as Gold Passport, which provide the guest accounts for 20% discount of all Hyatt room nights worldwide. According to Zeithanal. V. A. etal (1997) the role of a customer in developing the business as a productive resource, contributive to the quality of a product, satisfaction and the value of the product and services. Lastly, they are the only competitor of the organization. According to Jones and Merriccks (1994) The resources used by those who supply goods and services to keep themselves in contact with the requirements and desires of the customer those who purchase and utilize goods and services. The process of market research includes the following steps such as finding out the information required, preplanning goals. Internal secondary research the goals and the organization detail of the research goal in brief. The resource plan systematically collecting data from the market with the help of secondary and primary research analyzing the data lastly preparing the report. According to Michael J. Croft (1994), separated products could target Market segmentation, which is the process of identifying different customer group’s users with in a market share similar level of interest in sets of needs. Market segmentation is an important part of any organization because it helps in the organization to satisfy the different kind of customer and their needs. Introducing new product in the market to bring more choices for the customer. The new segments can forecast with cost, profit and investment return of any company on demand of new segments in the market. It helps the company to achieve the goal by analyzing and forecasting all information of market segmentation According to D. Hoyer & J. Macinns(2009), consumer behaviour imitate the entirety of consumer decision with admiration to the attainment, utilization of products and character of goods, services activities in the market, experiences of people and ideas by decision making. Consumer behaviour is more than purchasing tangible goods from the market; it also includes services experience and having new ideas. It involves customer time consumption and choice. Marketing of Organizations always try to offer new product, idea, and services to the customer. Consumer can acquire, buy, and dispose the offering new products. It occurs a reason that sometimes offering new products meets customers’ needs, value, and goals. The organization now get to know the understanding that what, when and which products consumer acquire and buy and when they dispose it before offering new products in the market. This refers to customer satisfaction in means of quality and availability of products with good services in the market that includes tangible and intangible elements also. Customers have many expectations about the products in the market. According to Parasuraman et. al (1988) owing to a standard involvement in the expectation, customer could judge the service providers performance and quality service. Analyzing the customer expectations and needs plays an important role. According to Zeithanal et. al (1993) that customer service expectation can be divided into two parts or level which are desire and adequate. In desire, the customer is willing or wanting services provided by the suppliers. In this customer behaviour customer, use the combination of ‘can be’ and ‘should be’. In adequate level customer expectation have very low faith on the services offered to them and they believe these services as it ‘will be’. Thus, the Taj group of hotels within the aim of targeting the corporate tourist within the budget hotels sectors the new idea of Ginger a low budget hotels has effectively well matched with the requirements and needs of such kind of customers. Competition is practically excludes for the consideration set when customer feels so strongly that you can meet his or her important wants and supplies and the consumer buy nearly exclusively from you. According to Anderson and Jacobsen (2000) â€Å"Is in point of fact that achievement of desired goal of an organization creates a benefit for a purchaser so with the purpose they will sustain or enlarge their purchase from the organization. † Maintain customer reliability is clearly a key goal for any business. Loyal customers mean a dependable revenue flow and a constant profit. Not surprisingly, then, the subject of how you maintain customer loyalty has been one that many researchers have looked into. If a business owner or manager, there is a variety of theories on customer loyalty that he/she should be aware of, as building, a base of loyal customers is key to the growth of a company. To improve the loyalty of the customer it is very important to building up the customer satisfaction in the terms of providing good quality products and services. This process should do continuously. Taking feedback and analyzing what the customer needs and what the customer wanted to see the improvement in the product and services. Building trust plays an important role in customer. Regularity of the customer is the source of profit gaining for any organization. Profit will not earn before customer repeatedly come to buy or purchase the products and services. Kotler (2000) referred that customer satisfaction as â€Å"a person’s view of satisfaction or dissatisfaction. Ensuing as of evaluate manufactured goods is apparent presentation in relative to their prospect. Customer satisfaction refers to the level of customers in which they are pleased with the supply of the products and services provide by an industry in the market. According to Hoyer and McInnis (2001), satisfied customers are the form organization of any Successful company. Customer pleasure, which leads to replicate purchase, product reliability, and affirmative statement. Customer satisfaction levels can calculate by analysis technique and questionnaire. In advance elevated levels of customer satisfaction is especially significant for the business because satisfied customers are mainly expected to be reliable and to create repeat orders and to use a extensive range of services presented by a company.. Therefore, in the essay conclude that growth of a successful business is depending upon some important stream of positive factors. These factors conclude the developing strength and the significant prospective that can move forward the growth of an organization and leads forward to accomplishment of the goals. Each feature of the stream of factors are interlinked to each other, which means one function cannot run not including the other. Customers and potential customers are the definitive goal of a rising firm. In order to accomplish those, organization requires to exposed strike to their competitors by means of certain advertising, customer-centric strategies and further such tools. Thus, organizations would-be customer pleasure, development, and stay competitive in the market require to watch executing the earlier mention factors before they be able to predict success.

Collection of Happy Birthday Wish Quotations

There are birthday wishes and then there are birthday wishes. But to make a truly special birthday wish you have to blend together many beautiful phrases. Here are some quotes that I like to use in creating a personalized happy birthday wish. Frank SinatraMay you live to be 100 and may the last voice you hear be mine.Jonathan SwiftMay you live all the days of your life!William Butler YeatsFrom our birthday, until we die,Is but the winking of an eye.Lewis CarrollThere are three hundred and sixty-four days when you might get un-birthday presents and only one for birthday presents, you know.AnonymousA birthday is just the first day of another 365-day journey around the sun. Enjoy the trip.AnonymousThis card is filled with wishesFor a very special day,One that brings a world of joyAnd happiness your way-Its also filled with loving thoughtsEspecially meant for you,For youre the kind of personHappy things should happen to!AnonymousHope it addsSome special pleasureTo the hours of your dayTo know youre being thought ofIn the very warmest way...And when your birthdays over,Hope that youll remember, too,The same warm thoughts as alwaysWill keep going out to you!Emily DickinsonWe turn not older with years but newer every day.Frank L loyd WrightYouth is a circumstance you cant do anything about. The trick is to grow up without getting old.Billy MillsYour life is a gift from the Creator. Your gift back to the Creator is what you do with your life.Bishop Richard CumberlandIt is better to wear out than to rust out.