Monday, February 25, 2008

Planet

A planet, as defined by the International Astronomical Union (IAU), is a celestial body orbiting a star or stellar remnant that is enormous enough to be rounded by its own gravity, not massive enough to cause thermonuclear fusion, and has cleared its neighboring region of planetesimals.

The term planet is an antique one having ties to history, science, myth, and religion. The planets were originally seen as a divine attendance; as emissaries of the gods. Even today, many people continue to believe the movement of the planets affects their lives, although such causation is rejected by the scientific community. As scientific knowledge advanced, the human awareness of the planets changed over time, incorporating a number of disparate objects. Even now there is no recognized definition of what a planet is. In 2006, the IAU formally adopted a resolution defining planets within the Solar System. This definition has been both praised and criticize, and remains disputed by some scientists.

Under IAU definitions, there are eight planets in the Solar System (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune) and 270 further solar ones. The Solar System also contains at slightest three dwarf planets (Ceres, Pluto, and Eris). Many of these planets are orbited by one or more moons, which can be superior than small planets. Planets are usually divided into two main types: large, low-density gas giants and smaller, rocky terrestrials.

Tuesday, February 19, 2008

Pomegranate

The Pomegranate (Punica granatum) is a fruit-bearing deciduous shrub or tiny tree growing to 5–8 m tall. The pomegranate is native to the region from Afghanistan, Pakistan, and Iran to the Himalayas in northern India and has been enlightened and naturalized over the whole Mediterranean region and the Caucasus since antique times. It is widely cultivated throughout Armenia, Azerbaijan, Iran, and India, the drier parts of Southeast Asia, Peninsular Malaysia, the East Indies, and tropical Africa. Introduced into Latin America and California by Spanish settlers in 1769, pomegranate is now cultivated mostly in the drier parts of California and Arizona for its fruits exploited commercially as juice products in advance in popularity since 2001. In the global functional food industry, pomegranate is included among a novel category of exotic plant sources called super fruits.

In the Northern Hemisphere, the fruit is classically in season from September to January. In the Southern hemisphere, it is in period from March to May.

Monday, February 11, 2008

Plantation

A plantation is a deliberate planting of a crop, on a larger scale, frequently for uses other than cereal production or pasture. The word is most frequently used for plantings of trees and shrubs. The word tends also to be used for plantings maintain on financial bases other than that of survival farming. Crops may be called plantation crops because of their relationship with an exact type of farming economy. Most of these fit into place a large landowner, raising crops with economic value rather than for survival, with a number of employees carrying out the work. Often crops recently introduced to a region. In past times it has been connected with slavery, indentured labour, and other economic models of high injustice. However, arable and dairy farming are both frequently (but not always) barred from such definitions. A comparable economic structure in ancient times was the latitudinal that produced commercial amount of olive oil or wine, for export.

Monday, February 04, 2008

Climate

The climate is commonly measured to be the weather averaged over a long period of time, naturally 30 years. Somewhat more precisely, the concept of "climate" also includes the statistics of the weather — such as the degree of day-to-day or year-to-year difference expected. IPCC is called as Intergovernmental Panel on Climate Change.
Climate in a narrow sense is usually defined as the “average weather”, or more meticulously, as the statistical description in terms of the mean and variability of relevant quantities over a period of time range from months to thousands or millions of years. The traditional period is 30 years, as defined by the World Meteorological Organization (WMO). These quantities are the majority often surface variables such as temperature, precipitation, and wind. Climate in a wider sense is the state, including a numerical description, of the climate system.