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[D138]Definition Of Artificial Intelligence
by Stoian Adrian, Sto

A more conservative definition would be: Music is harmonious sound created by the playing of instruments as a whole or individually. It is a direct expression of human emotions designed to manipulate and transform the emotion of the listener/listeners. Music is designed to be felt unlike sound which is heard.

Greek philosophers and medieval theorists defined music as tones ordered horizontally as melodies, and vertically as harmonies. Music theory, within this realm, is studied with the presupposition that music is orderly and often pleasant to hear. However, in the 20th century, composers challenged the notion that music had to be pleasant by creating music that explored harsher, darker timbres. The existence of some modern-day genres such as death metal and grindcore, which enjoy an extensive underground following, indicate that even the harshest sounds can be considered music if the listener is so inclined.

20th century composer John Cage disagreed with the notion that music must consist of pleasant, discernible melodies. Instead, he argued that any sounds we can hear can be music, saying, for example, "There is no noise, only sound,"[2]. According to musicologist Jean-Jacques Nattiez (1990 p.47-8,55): "The border between music and noise is always culturally defined--which implies that, even within a single society, this border does not always pass through the same place; in short, there is rarely a consensus.... By all accounts there is no single and intercultural universal concept defining what music might be."

The composer Anton Webern stated "With me, things never turn out as I wish, but only as is ordained for means—I must", which sets out his view of the underlying generative process of music. The German philosopher Johann Wolfgang Von Goethe believed that patterns and forms were the basis of music; he stated that "architecture is frozen music."


Although archeological evidence found in Iran in 2006 suggests that artificial eyes may be as old as five thousand years, it is not believed that they were widely known until the mid 16th century in Europe. William Shakespeare made reference to ?glass eyes? in his King Lear and around that same time, Ambrose Par?, a famous French surgeon described artificial eyes made of gold and silver in his writings. Par? discussed two types of artificial eyes: the ekblephara, designed to be worn in over the eye lids and the hypoblephara, to be worn under the eyelid, probably over a damaged eye, since eye removal surgery was not common until almost two hundred years later.

It doesn't appear that many advancements were made in ocular prostheses until the early 1800s, when enamel prostheses were fairly common. However, enamel was expensive and lack of durability made it a less than ideal medium for artificial eyes. Later that century, in 1835, German craftsmen created a new kind of glass, called cryolite which was made from arsenic oxide and sodium-aluminum fluoride. The resulting new glass was a slightly off-white color, which was a huge advancement in making glass eyes appear more natural. The craftsmen who created these eyes, used glass blowing techniques to form a small round ball which they painted to look like eyeballs.

Throughout the 19th century, this new trade flourished in Europe, particularly in Germany. These German artisans were called ocularists, a term still used for modern makers of artificial eyes. In addition to making ocular prostheses for people, ocularists were also known for making eyes for dolls. Like most artesian skills, the crafting of artificial eyes was passed down from generation to generation, with later generations touring Europe and the United States to fit patients with prosthetics. Also, during this time, many American eye doctors would buy a variety of eyes to keep on hand. These eyes were called ?stock eyes? and an eye doctor may have had hundreds in his office, choosing the best match from his selection for each patient.

These procedures continued through the onset on World War II, when German imports were limited and the German ocularists ceased their tours of the United States. This necessitated the domestic production of ocular prostheses, which was spear-headed by the United States military, due to an increased need for artificial eyes for soldiers who had lost an eye in combat. Along with a few private practitioners in the United States, the military abandoned glass as the preferred material and instead switched to plastic to increase affordability. Many different types of plastics have been used over the years, but modern ocular prostheses are made from methyl methacrylate, a high quality medical-grade acrylic. The switch to plastic allowed artificial eyes to be mass-produced and they became more accessible to the general public. Although ocular prostheses are still mass-produced, many people now choose to have their artificial eyes custom-made by modern ocularists in order to achieve the closest match to their remaining eye, thereby creating a natural look.
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Both Stoian Adrian & J.w. Sibley are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.

Stoian Adrian has sinced written about articles on various topics from Keyboard Synthesizer, Web Development. . Stoian Adrian's top article generates over 880 views. to your Favourites.

J.w. Sibley has sinced written about articles on various topics from Keyboard Synthesizer, Obesity and Keyboard Synthesizer. provides hand-crafted and hand-painted prosthetic eyes. With two North Carolina locations their ocularists serve patients in need o. J.w. Sibley's top article generates over 880 views. to your Favourites.
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