Abstract The glass transition temperature of polymethylmethacrylate ( PMMA‚ Perspex) is measured using static and dynamic method while the glass transition temperature of rubber of different size is measured using only dynamic method. The glass transition temperature Tg of Perspex is found to be 90°C using the static method and 160°c using the dynamic method. On the other hand‚ the Tg of rubber is found to be -30°C. Introduction Perspex is a type of amorphous polymer and has the following
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Topic: In many countries‚ children are engaged in some kind of paid work. Some people regard this as a completely wrong‚ while others consider it as valuable work experience‚ important for learning and taking responsibility It is true to say that children is the future of every country. They should be healthy‚ be treated and educated right in the society. In poor nations‚ children are rented to do paid work which leads to some objection. Whereas in Western countries‚ parents encourage their child
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Greatest Love Of All" (Whiney Houston) I believe the children are our future Teach them well and let them lead the way Show them all the beauty they possess inside Give them a sense of pride to make it easier Let the children’s laughter remind us how we used to be Only a mentally deranged builder would cut corners with the foundation and pillars of a mansion he plans to live in. A parallel could be drawn between the pertinence of the foundation of a mansion or sky-scraper and that of the
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From the age of 0 to 3 Physical: A new born baby comes with some basic physical survival skills like sucking‚ grabbing and latching onto a breast. By the age of 1 they can roll‚ crawl and sit on their own accord. During the second year‚ most babies become toddlers and begin to take their first steps‚ their muscles have grown stronger now‚ as they progress through the 2nd year they will become more curious of the world around and want to touch and grab anything and everything they can see‚ they will
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I slam the bike stop to the ground with all my might. I plop one foot to the ground and hop off my Mongoose bike. I am in the transition from biking to swimming in the Conejo Valley Reverse Triathlon. I am currently in first place because I’m pretty sure I overlapped everyone in my 4 laps of biking. I need to transition from biking to swimming fast so I don’t lose my lead. But first‚ I need my goggles. I look down the road from the easy obstacles and see another biker come down the road. I scan the
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Pinterest is a hot topic on the social media marketing scene right now. The transition Pinterest has made since its founding 5 years ago is truly astounding‚ and keeps marketers wondering what’s next for the platform. From its humble beginnings as a way for users to organize their dream home or outfits they love‚ it has developed into an e-commerce powerhouse where those fairytales can become reality through buyable pins. Now that Pinterest is offering rich pin options‚ many brands are realizing
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Adolescence is best described as the transitional period between childhood and adulthood. The transition into adulthood is primarily a result of taking on roles and responsibilities associated with adulthood. This transitional period commonly occurs during the ages of twelve and nineteen. During this time period‚ the adolescent will experience a change in the physical‚ psychological‚ social‚ intellectual and emotional development. Although physical development brings change to both females and
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THE TRANSITION FROM FEUDALISM TO CAPITALISM By E. K. Hunt from The Capitalist System The decline of the western part of the old Roman Empire left Europe without the laws and protection the empire had provided. The vacuum was filled by the creation of a feudal hierarchy. In this hierarchy‚ the serf‚ or peasant‚ was protected by the lord of the manor‚ who‚ in turn‚ owed allegiance to and was protected by a higher overlord. And so the system went‚ ending eventually with the king. The strong protected
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Consumers Transition…………..40 million Americans will reach the age of 65 and over in 2011. In the year 2025‚ the youngest of the baby boomers will reach retirement age and when 2025 approaches‚ 63 million Americans will be retired (U.S. Census Bureau‚ 2008). This does not include the larger number of people living longer up to or over the age of 80. During the golden years‚ individuals will require different types of long-term care services to live out the rest of their life comfortably. Depending
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The transition from slavery to freedom was as amazing as it was complicated. Newly freed African Americans experienced both joy and disappointment as they established themselves as free persons. Freed people frequently encountered violent resistance to their efforts to become paid workers and active citizens. Many white southerners refused to accept former slaves as free persons. Fortunately for the African Americans‚ they didn’t give up. These freed people took advantage of all the political‚ economic
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