Human-wk2 Essay Example | Topics and Well Written Essays - 750 words

Human-wk2 - Essay Example According to Reeve (2009) will is the part of the mind that does the thinking, planning and intentions before action is taken. This means to me that we have to acknowledge the place that will has in what we do. I feel that I have a strong will to achieve. I also believe that drive is very important when you are going through any situation. For me, drive is important as I go through my education because sometimes it seems overwhelming. My drive comes from the fact that I want to see my children grow up and have a fulfilling life. Freuds Drive Theory suggests that we are all motivated to do things in order to satisfy our needs (Reeve, 2009). The mini-theory that I would apply to my goal is the goal-setting theory. According to this theory, different goals motivate us in different ways and you will approach goals differently depending on what you want. Freuds theory was not scientifically testable and he did not go far enough for factors that related to learning and experience. He also did not understand that drive was more than bodily needs. However, the goal setting theory expands it to let us know that there is more to life than only what we see. The mini-theory also helps with the will theory because it takes it beyond an understanding that Descartes saw and makes it a more tangible outcome. My friend decided that the person to be saved would be the one year old. The explanation that they gave was the fact that the five year old had already lived awhile and the one year old had not. In order to save only one in this tragedy, they would save the most vulnerable which to them was the one year old. In a sense, it would be very difficult for anyone to allow one child to die and let another live in a situation like this because the first answer is always, "I would save them both." Some people cannot even fathom not being able to save both children. In

Beach Sediments Essay Example | Topics and Well Written Essays - 2000 words

Beach Sediments - Essay Example Some beaches are built to great widths by sediments washed to the sea by episodic floods, gradually eroding until the next major flood replenishes the sand ("Beach Formation and Types of Beaches and Sand"). Beach sediments are delivered per year in million cubic yards through longshore transport. Different beaches have different colors and textures because of the various sediments that make them up. There are beaches made up of eroded shale cliffs, multicolored agates ground and polished by the surf, feldspar minerals, ground quartz, and even iron minerals. The various make up of the sediments determine the origin of these sand beaches which help researchers know more information about a particular coast. Mechanical sediments, also known as clastic sediments, came from the erosion of oceanic rocks formed during the earlier times. These sediments are carried by streams or waves to the place where they are deposited. Ocean sediments, especially in the form of turbidites, are usually carried over and deposited at the bottom of continental slopes ("The Columbia Encyclopedia" 42907). Chemical reactions in seawater form chemical sediments which results in the precipitation of small mineral crystals that settle to the floor of the sea and finally form a chemically pure layer of sediment somehow. Organic sediments are formed from plant or animal actions. ... There are also some traces of windblown volcanic and continental dusts found in organic sediments. Properties of Sediments Sediments have different properties which are being studied by researchers for different purposes such as coastal engineering. One property of sediments is its physical form. Sediments can be loose, fluid, hard or firm. Examples of loose sediments are sand and silt; mud is a form of fluid sediment. There are also sand forms that are firm and stiff as clay. Hard sediments are those rocks and coral pieces that can be found in some beaches. Sediments can also be classified in terms of their cohesiveness. Sediments can be cohesive, non-cohesive or mitigated. Sediments such as clay and firm sand are highly cohesive as each particle stick closely together. Mud and loose sands, as well as rocks and other loose particles, are non-cohesive. Mitigated sediments are mainly non-cohesive sediments with a little mix of clay. Non-cohesive sediment behavior in water is mainly controlled by mechanical forces. The hydrodynamics of a particle refer to its ability to remain still or become entrained if on the bed surface, or to remain in suspension or to cease movement if in motion ("Sedimentation Investigations of Rivers and Reservoirs" 7-1). The properties that crucially affect the non-cohesive particle's hydrodynamics are its size, shape and specific gravity. The behavior of cohesive sediments, on the other hand, is controlled by electrochemical forces and dependent on the particle size, sediment mineralogy, and water chemistry. Particle size is considered to be the most important property of non-cohesive sediments. The size of the particle can be defined by any of the four methods: a) Nominal diameter - with this