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Essay / Research Paper Abstract
In three pages this paper discusses the meaning of the Sun being in equilibrium, considering how and why this process takes place. One source is listed in the bibliography.
Page Count:
3 pages (~225 words per page)
File: TG15_TGequisun.rtf
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Unformatted sample text from the term paper:
center. Ever since the solar system originated, there has been a significant connection between the growth of planetary life and the chemical structures of the soil, the seas, and
the atmosphere (Sobel, 1987). These interactions have through the ages achieved a balance scientists have dubbed equilibrium (Sobel, 1987). An official definition of equilibrium is a process by
which "opposing forces counteract each other so that a complex system does not change, or changes so slowly that each element has time to adjust and survive" (Sobel, 1987, p.
100). The Sun itself has established equilibrium, which scientists have struggled to understand how and why it has sustained since well into the twentieth century. Simply stated, the
Sun neither expands nor contracts because the force of higher pressure combined with gravitys downward force keeps this star in perfect balance. The
origins of this pressure that is necessary for the Sun to maintain its equilibrium has been the focus of intensive research. Back in the 1920s, a British astronomer named
Arthur Eddington was gaining support for his hypothesis that energy from the Sun "could be explained as energy released during nuclear collisions" (Sobel, 1987, p. 126). This cemented the
scientific foundation for nuclear physicist Hans Bethes 1938 theory that nuclear burning was responsible for the heat at the central core of the Sun (Sobel, 1987). These collisions produce
nuclear fusion that can only occur in the Suns central core because of the high temperatures required for the process. But beyond the interior that is heated to millions
of degrees is an exterior that features comparatively cool temperatures (Sobel, 1987). The gas pressure generated within the Suns core provides a necessary counterbalance, which is the downward "force
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