My grandmother Essays

My grandmother Essays My grandmother Essay My grandmother Essay My grandmother and grandfather have kept a small group of extremely close friends, which she has found to be very rewarding as a social support group. The hardest part of getting older that my grandmother has found is seeing many of their close friends leave for the great social circle in the sky as she put it, but she found that working hard at keeping those who were important to her close to her was incredibly rewarding. The close friendships she maintained were the best support she ever found throughout her life. Friends that she kept close had many of the same values she did, or values she admired and aspired to obtain. Social support has also come from her family, a value that she obtained at an early age living with so many close relatives. Her entire family, two children, son and daughter-in laws and grandchildren all keep very close ties and provide frequent visits, phone calls, and e-mails to make sure that she is doing well. Although she a world-renowned writer and one would think her pride would lie mostly with her career, it is a true showcase of my grandmothers character that out of everything in life she is proudest of her children. She is especially proud of her son (my father) Joseph who is an incredible parent to his two children. Being a parent has been an unparalleled and most rewarding experience, and she takes great pride in her children and grandchildren as well. Secondly, she is most proud of her wonderful 56-year relationship with my grandfather and the strength of their marriage. Taking a back seat to family and friendship, my grandmother is also very proud of the National Book Award that she won in 2000 for her book Homeless Bird. The award was an exciting validation of a continuing career in childrens literature. The most prominent aspect of my grandmothers life has been her faith. Beginning when she was young, she was impressed and influenced by her fathers faith and hope throughout the Great Depression. All of her decision-making has been guided by the hand of God, and she feels that her faith really formed her. She believes that choices we make and the path we chose are all part of Gods plan for us, mistakes and lessons are learned and we are so often blessed with that which we might not deserve to help us see his guiding hand. Her great faith has helped her realize the incredible benefits of aging; the on-going quest and acquiring of knowledge is a truly spiritual and nearly inconceivable process. As one grows older they gain massive quantities of life experience to draw on and become more cognizant of their faults, often utilizing the looking glass self which allows others to reveal their failings to them. Aging, my grandmother has found, ultimately leads to a greater sense of identity and self. My grandmother is truly the picture of generativity. Her concern for the next generation is very apparent in her writing as she tries to preserve historical evidence and present it to children through her fictional writing. She is obviously aware of the many ways in which she has been blessed and very sensitive to the wants and needs of her husband who now genuinely needs her support. She has reached old age and faces death with a sense of integrity; her faith has lead her through a satisfying and meaningful life. Although she realizes that she is reaching the end, she is celebrating the many gifts life has presented her with and is satisfied with what she has been able to offer to others. The respect that I have for my grandmother is continually increasing, I do not know if I will ever be able to put into words how much of an idol she has served as for me in how I have shaped and the courses I have chosen in life. She has taught me the importance of a strong sense of self, how to value close friendships. She has shown me the wonderful support system and overall warmth family brings to ones life. Her amazing faith, which guided her through hardships and times of joy, showed me the importance of self-transcendence and the relationship I would someday like to build with God. Her steadfast and strong relationship with my grandfather has re-emphasized the importance of finding a true life partner and developing a relationship where conflict can be overcome. In her telling me about the social development and self-discovery she achieved in college I realize the importance of maximizing my college career and truly finding what I am passionate about as early in my life as I can. My father is a wonderful parent and I see how having children and watching them raise their own children can become the most rewarding experience in a persons life. I have inherited my passion for writing from my grandmother and I hope that someday I will be as skilled at using words to paint a picture is she is. The chapters of my grandmothers life have enlightened me greatly, as a quote from Anton Chekhov suggests her writing inspires me to do the same, Dont tell me the moon is shining; show me the glint of light on broken glass.

The Earths Core - Its Structure and Possible Composition

The Earth's Core - Its Structure and Possible Composition A century ago, science barely knew that the Earth even had a core. Today we are tantalized by the core and its connections with the rest of the planet. Indeed, were at the start of a golden age of core studies. The Cores Gross Shape We knew by the 1890s, from the way Earth responds to the gravity of the Sun and Moon, that the planet has a dense core, probably iron. In 1906 Richard Dixon Oldham found that earthquake waves move through the Earths center much slower than they do through the mantle around it- because the center is liquid. In 1936 Inge Lehmann reported that something reflects seismic waves from within the core. It became clear that the core consists of a thick shell of liquid iron- the outer core- with a smaller, solid inner core at its center. Its solid because at that depth the high pressure overcomes the effect of high temperature. In 2002 Miaki Ishii and Adam Dziewonski of Harvard University published evidence of an innermost inner core some 600 kilometers across. In 2008 Xiadong Song and Xinlei Sun proposed a different inner inner core about 1200 km across. Not much can be made of these ideas until others confirm the work. Whatever we learn raises new questions. The liquid iron must be the source of Earths geomagnetic field-   the geodynamo- but how does it work? Why does the geodynamo flip, switching magnetic north and south, over geologic time? What happens at the top of the core, where molten metal meets the rocky mantle? Answers began to emerge during the 1990s. Studying the Core Our main tool for core research has been earthquake waves, especially those from large events like the 2004 Sumatra quake. The ringing normal modes, which make the planet pulsate with the sort of motions you see in a large soap bubble, are useful for examining large-scale deep structure. But a big problem is nonuniqueness- any given piece of seismic evidence can be interpreted more than one way. A wave that penetrates the core also traverses the crust at least once and the mantle at least twice, so a feature in a seismogram may originate in several possible places. Many different pieces of data must be cross-checked. The barrier of nonuniqueness faded somewhat as we began to simulate the deep Earth in computers with realistic numbers, and as we reproduced high temperatures and pressures in the laboratory with the diamond-anvil cell. These tools (and length-of-day studies) have let us peer through the layers of the Earth until at last we can contemplate the core. What the Core Is Made Of Considering that the whole Earth on average consists of the same mixture of stuff we see elsewhere in the solar system, the core has to be iron metal along with some nickel. But its less dense than pure iron, so about 10 percent of the core must be something lighter. Ideas about what that light ingredient is have been evolving. Sulfur and oxygen have been candidates for a long time, and even hydrogen has been considered. Lately, there has been a rise of interest in silicon, as high-pressure experiments and simulations suggest that it may dissolve in molten iron better than we thought. Maybe more than one of these is down there. It takes a lot of ingenious reasoning and uncertain assumptions to propose any particular recipe- but the subject is not beyond all conjecture. Seismologists continue to probe the inner core. The cores eastern hemisphere appears to differ from the western hemisphere in the way the iron crystals are aligned. The problem is hard to attack because seismic waves have to go pretty much straight from an earthquake, right through the Earths center, to a seismograph. Events and machines that happen to be lined up just right are rare. And the effects are subtle. Core Dynamics In 1996, Xiadong Song and Paul Richards confirmed a prediction that the inner core rotates slightly faster than the rest of the Earth. The magnetic forces of the geodynamo seem to be responsible. Over geologic time, the inner core grows as the whole Earth cools. At the top of the outer core, iron crystals freeze out and rain into the inner core. At the base of the outer core, the iron freezes under pressure taking much of the nickel with it. The remaining liquid iron is lighter and rises. These rising and falling motions, interacting with geomagnetic forces, stir the whole outer core at a speed of 20 kilometers a year or so. The planet Mercury also has a large iron core and a magnetic field, though much weaker than Earths. Recent research hints that Mercurys core is rich in sulfur and that a similar freezing process stirs it, with iron snow falling and sulfur-enriched liquid rising. Core studies surged in 1996 when computer models by Gary Glatzmaier and Paul Roberts first reproduced the behavior of the geodynamo, including spontaneous reversals. Hollywood gave Glatzmaier an unexpected audience when it used his animations in the action movie The Core. Recent high-pressure lab work by Raymond Jeanloz, Ho-Kwang (David) Mao and others has given us hints about the core-mantle boundary, where liquid iron interacts with silicate rock. The experiments show that core and mantle materials undergo strong chemical reactions. This is the region where many think mantle plumes originate, rising to form places like the Hawaiian Islands chain, Yellowstone, Iceland, and other surface features. The more we learn about the core, the closer it becomes. PS: The small, close-knit group of core specialists all belong to the SEDI (Study of the Earths Deep Interior) group and read its Deep Earth Dialog newsletter. And they use the Special Bureau for the Cores website  as a central repository for geophysical and bibliographic data.