Monday, February 17, 2020

The Causes and Impact of the Mfecane in South Africa Essay

The Causes and Impact of the Mfecane in South Africa - Essay Example It is evidently clear from the discussion that Mfecane took place as a result of nation-building that was aggressively done by the Zulu lead by Shaka and the Ndebele of Mzilikazi. Mfecane is sometimes referred to as the war of wondering and it accompanied the rise of the Zulu people. The war was highly concentrated at Drakensberg Mountains, along the river Limpopo, and between the Kalahari Desert. This paper illustrates that there were geographical barriers that made people unable to expand towards the west-eastern part, contributing to a rise in population hence people engaged in war in order to secure land. Indian Ocean waters and the Drakensberg Mountains were the key geographical features that complicated the lives of people living in this region. Mfecane was caused by the war between the tribes of Mthethwa and Ndwandwe who were expanding their territories at the expenses of their neighbors who were weak. These led to warfare that became frequent and severe as people fought for l and. The increased inequality that was witnessed between communities and environmental crisis led to competition for natural resources and trade on South Africa leading to violent struggles for survival. There was a shortage of land and many people at that time migrated to that area because it was fertile and convenient for farming activities. The high population growth caused a lot of population pressure lead to various tribal expansions, which led to the emergence of unity amongst the Bantus that occupied that place. During the 18th century, there was the presence of the Portuguese at the east coast of Delagoa who participated in long-distance trade. There was a rise in the desire to control the trade amongst people who were in the region and as a result, the Nguni tribe launched attacks to other communities with an aim of controlling the trade. The Portuguese, on the other hand, wanted to carry out the trade with groups that were organized and had powerful leaders. The creation o f Zulu state displaced hundreds of people who fled in different directions in order to establish themselves. The Zulu nation was rapidly rising during that time, and its effect was the presence of the intensification of Mfecane war by the Shaka even though Mfecane war began way before Shaka was officially inaugurated as the chief of the Zulu. Shaka’s leadership later intensified the war because of his zealous interest in wars, and he was able to defeat other tribes. The idea of having a growing domain of terror was touted by speculators who wanted imperial military backing in order to secure future land. Cape Whites were expanded at the end of the 1st century because the whites wanted more land at the eastern side, and their expansion created a shortage of land while the population was increasing hence worsening the land issue. The three powerful groups that emerged and rose up at that time fighting each other; Zwide group was responsible for sparking the war with its rivals Sobhuza, and later Ndwandwe joined the war. Most communities had at that time spread at the countryside and moved across the frontier, dividing themselves to settle in concentrated places. Americans introduced corn through the Portuguese in Mozambique, and this significantly contributed to the communities’ settlement in the region. This is because corn ensured there was plenty of food as compared to indigenous grasses thus it was able to sustain a larger population. At the end of 18th century, the possibility of people moving from the region became limited, and the shortage of land was experienced.  Most Bantu farmers in the region had reached the margins of arable land that was at the edge of Kalahari Desert; it was also difficult to access water from this region.

Monday, February 3, 2020

Design description Essay Example | Topics and Well Written Essays - 250 words

Design description - Essay Example A spanner or wrench is a hand tool used to provide grip and mechanical advantage in applying torque to turn objects such as nuts and bolts. The figures below show the designs and the explanations thereunder. In the original design shown in the above diagrams, the design is shown in figure 1 (a) and the stress distribution in figure 1 (b). Stress is concentrated around the grip edges, and at the ring end of the wrench. There is also concentration of von misses stress along the axis of the wrench. From the figure 1 (b), the red color shows regions that are heavily stressed whereas the blue color indicates regions with minimal stress. From the summary at the top left the same figure indicates the extent to which the von misses stresses are distributed within the wrench body. In the modified design, shown in the diagram above, the over stressing of the same region is eliminated. Stress is redistributed and is only excess at the collar of the wrench. In this design, stress has been managed well and is uniform almost throughout the entire figure. The contours show the von misses stress