Wednesday, November 29, 2006

Temple of Artemis

The Temple of Artemis was located in the ancient city of Ephesus, about 50 km south from the modern port city of Izmir, in Turkey. Like the other wonders, Antipater chose the temple for his list not because of its beauty or size, but rather because it rested near the border of the Greek world. This inspired a sense of mystery and awe for the Greeks, and emphasized Alexander the Great's vast empire.

The Temple of Artemis , also known as the Temple of Diana, was a Greek temple dedicated to Artemis completed around 550 BC at Ephesus under the Achaemenid dynasty of the Persian Empire. Nothing remains of the original temple, which was considered one of the Seven Wonders of the Ancient World.

Wednesday, November 22, 2006

Music

Music is an art, entertainment, or other human activity that involve organized and audible sounds and silence. It is expressed in terms of pitch, rhythm, harmony, and timbre. Music involves complex generative forms in time through the construction of patterns and combinations of natural stimuli mainly sound. As a human activity, music may be used for artistic or aesthetic, communicative, entertainment, or ceremonial purposes. The definition of what constitutes music varies according to culture and social context.

The broadest definition of music is organized sound. There are observable patterns to what is broadly labeled music, and while there are reasonable cultural variations, the properties of music are the properties of sound as perceived and processed by humans.A more conservative definition would be: Music is harmonious sound created by the playing of instruments as a whole or independently. 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.

Monday, November 13, 2006

Nausea

Nausea is not an illness in itself; it is rather a possible symptom of several conditions, many of which are not related to the stomach at all. In fact, more often than not nausea indicates a condition somewhere else in the body rather than in the stomach itself. An example of this is travel sickness, which is due to confusion between perceived movement and actual movement. Our sense of equilibrium lies in the ear and works together with eyesight. When these two don't "agree" to what extent the body is actually moving the symptom is presented as nausea even though the stomach itself has nothing to do with the situation. Nausea is also an adverse effect of many drugs.

In medicine, nausea is a particular problem during some chemotherapy regimens and following general anaesthesia. Nausea is also a common symptom of pregnancy. Even though nausea is generally seen as an indication that something is wrong, experiencing it during pregnancy is quite normal, and should not be considered an immediate cause for alarm.

Sunday, November 05, 2006

Sinkhole

Sinkholes, also known as sinks, shakeholes or dolina, and cenotes, are formed by the collapse of cave roofs and are a feature of landscapes that are based on limestone bedrock. The result is a depression in the surface topography. This may range anywhere from a small, gentle earth-lined depression, to a large, cliff-lined chasm. Most often there is a small area of rock exposure near or at the bottom of a sinkhole, and a patent opening into the cave below may or may not be visible. In the case of exceptionally large sinkholes, such as Cedar Sink at Mammoth Cave National Park, there may actually be a stream or river flowing into the bottom of the sink from one side and out the other side.

Sinkholes often form in low areas where they form drainage outlets for a closed local surface drainage basin. They may also form in currently high and dry locations. Florida has been known for having frequent sinkholes, especially in the central part of the state.

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