Canadian History (Post-Confederation) Essay Example | Topics and Well Written Essays - 1500 words

Canadian History (Post-Confederation) - Essay Example Blacks were not left behind since most of them went to Canada after fleeing America where they had been brought as slaves. In Canada, they could not access most social facilities as their skin color betrayed them.3 At the same time, the Jews were treated worse than Blacks as some of the leaders thought they would pollute the Canadians bloodstream. Jews were forbidden from accessing social amenities like the Blacks. In spite of all the discrimination, Canada needed work force which its citizens could not do and therefore relied on the immigrants.4 The history of Chinese people migrating to Canada was fisrt recorded in 1788. During this period, the Chinese people migrated first to Nootka in North America. This was followed by large scale migration of other Chinese as a result of gold mining taking place in Fraser Canyon. During this time, many Chinese settlements were established in the British colonies in America such as New Westminster, Barkerville and Victoria. Due to the increased number of Chinese people, they expanded their centers to the interiors of the towns thereby making permanent settlements. The construction of the Canadian Pacific Railway commenced after the gold rush attracting the Chinese people. Due to the newly found job, the Chinese people began moving eastward thereby establishing other settlements in the Canadian cities. In this case, Chinese settlement in Canada was a contrast of their stay in the previous towns. The late 19th century and the beginning of the 20th century resulted in the widespread intolerance of Asians in Canada. Canadians viewed the arrival of the Asians as a threat to them since they thought they had come to take jobs from the working groups. The first group of Chinese arrived in Canada in 1858. The group came to work in the gold mines in British Columbia and it consisted mostly of young immigrants.5Most of the Chinese

Tensile testing Lab Report Example | Topics and Well Written Essays - 500 words

Tensile testing - Lab Report Example Data from the test is either collected through a data acquisition system and subsequently plotted using appropriate software or plotted using an X-Y plotter. The data typically consists of the load applied to the specimen and the extension or the stress and strain (since the initial cross sectional area of the specimen and gauge length are constants both the load v extension and stress v strain graph have the same shape); a typical plot for a metallic material is shown in figure 2. Tensile specimens may have a variety of cross-sections, although rectangular or cylindrical ones tend to be more common, and may be in a machined or unmachined state. The geometry of a typical specimen is shown in Figure 3, where (note that the nomenclature may vary): The mechanical properties typically derived from a tensile test include the yield stress (or more commonly the offset proof stress), tensile strength (stress), elastic (or Young’s) modulus, percentage total extension at fracture and reduction in cross-sectional area. A more detailed explanation of the range of properties that may be determined from a test and the analysis involved may be found in BS EN ISO 6892-1:2009 and ASTM E8M. It is good practice to test to a standard such as these as they stipulate various parameters, such as the speed of testing (the rate at which the load is applied) and shape of the specimen, which may affect the results obtained, although some companies will have their own procedures that will ensure compatibility between tests within that company. Stress is usually indicated by the Greek letter ÏÆ' (sigma) or S and is the measure of the force per unit area. It has the units N.m-2 or Pa (Pascal) (megapascals, MPa, are more commonly used, these being 106 x N.m-2 (106 Pa) or N.mm-2, due to the magnitude of the values encountered). Strain is usually indicated by the Greek letter ÃŽ µ (epsilon) or e and is the amount a material