Monday, February 25, 2008

Venus

Venus (pronounced /'vi?n?s/) is the second-closest planet to the Sun, orbiting it each 224.7 Earth days. It is the brightest usual object in the night sky, except for the Moon, reaching an obvious magnitude of -4.6. Because Venus is a substandard planet, from Earth it never appears to venture far from the Sun: its elongation reaches a maximum of 47.8°. Venus reaches its maximum brightness shortly before sunrise or shortly after sunset, for which reason it is frequently called the Morning Star or the Evening Star.

Classified as a terrestrial planet, it is now and then called Earth's "sister planet", for the two are similar in size, gravity, and bulk composition. Venus is enclosed with an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light; this was a subject of great speculation until some of its secrets were exposed by planetary science in the twentieth century. Venus has the densest atmosphere of all the terrestrial planets, consisting frequently of carbon dioxide, as it has no carbon cycle to lock carbon back into rocks and surface features, nor organic life to take up it in biomass. It has become so hot that the earth-like oceans the young Venus is supposed to have possessed have completely evaporated, leaving a dusty dry deserts cape with many slab-like rocks. The evaporated water vapor has dissociated and hydrogen has runaway into interplanetary space. The atmospheric pressure at the planet's external is 92 times that of the Earth, the great mass of it carbon dioxide and other greenhouse gases.

Tuesday, February 19, 2008

Juice

Juice is a liquid naturally controlled in fruit or vegetable tissue. Juice is prepared by mechanically squeezing or macerating fresh fruits or vegetables without the request of heat or solvents. For example, orange juice is the liquid take out from the fruit of the orange tree. Juice may be prepared in the home from fresh fruits and vegetables by means of variety of hand or electric juicers. Many commercial juices are drinkable to remove fiber or pulp, but high pulp fresh orange juice is marketed as an alternative. Juice may be marketed in deliberate form, sometimes frozen, require the user to add water to reconstitute the liquid back to its 'original state' (Generally, concentrates have a noticeably different taste than their comparable "fresh-squeezed" versions). Other juices are reconstituted before covering for retail sale. Common methods for protection and processing of fruit juices include canning, pasteurization, freezing, evaporation and spray drying.

Monday, February 11, 2008

A history of computer viruses

In the following report, “computer viruses” will be explained in aspect. A lengthy and educational description of the evolution and history on microcomputer viruses will be given; to give you a background of their origin for some understanding of how they came to be. The next segment in the statement is on how to battle computer viruses with the development of anti-virus applications.

The current status of microcomputer viruses will also be discuss, naming the most common types of viruses and the mass harmful type at this present point of time.
Details of the most new outbreaks of computer viruses, such as the “Melissa”, “I Love You” and the most recent “Anna Kournikova” viruses will be explained, and why they are so harmful.

Monday, February 04, 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.