... conditions clay minerals may be produced by the hydrolysis of feldspar. Hydrogen in water reacts with minerals in the rock or there is a combination of the H+ and OH- ions in the water and the ions of the mineral. The rate of hydrolysis depends on the amount of H+ ions, which in turn depends on the composition of air and water in the soil, the activity of organisms, the presence of organic acids and the cation ... , but because soil water is more aggressive than rainwater, it is particularly effective within the profile. Carbonic acid, through its bicarbonate anion, is particularly effec...

• Word Count: 953
• Approx Pages: 4
• Has Bibliography
• Grade Level: Undergraduate

... sculptors and installation artists who began to exhibit together in London in the early 1980s; Deacon's work is marked by his use synthesis of the natural and the industrial. He manipulates materials such as sheets of metals and laminated wood in addition to leather, cardboard, ceramics, rubber, cloth, chrome, marble and clay. His body of work comprises of small-scale works, larger pieces ... shown in sculpture gardens, and specific commissioned objects. The forms Deacon creates are abstract, yet chock ... full of metaphorical references created by the contradicting elements in his piec...

• Word Count: 534
• Approx Pages: 2
• Grade Level: Undergraduate

... in ancient Rome, and no dome had ever been built at this height about the huge dome that was built (Silver 162). There was also Michelangelo, who it was said that through him, art in Italy attained the 'supreme perfection'(Silver 162). He produced a marble statue of David, which symbolized his own heroic personal striving to express spiritual beauty through art (Silver 162 ... ). The next vital artisan of the Renaissance was very diverse in what he specialized in. Today, we use the term Renaissance man to describe someone who can do many ... an architect, engineer, and a general designe...

• Word Count: 836
• Approx Pages: 3
• Grade Level: Undergraduate