Hackers are people who study, analyze, modify, breaks into computers and computer networks, either for profit or motivated by the challenge. Heat is the energy that moves by differences in temperature. Avocado is native to Mexico and Central America and is now widely cultivated in South America and Central America as a crop monoculture and as garden plants in other tropical regions of the world. Who will win?
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| Hacker |
Terminology hackers emerged in the early 1960s among members of student organizations Tech Model Railroad Club at the Artificial Intelligence Laboratory of the Massachusetts Institute of Technology (MIT). The student group is one of the pioneering development of computer technology and they are struggling with a number of mainframe computers. The English word "hacker" first appeared in a positive sense to refer to a member who has expertise in the field of computers and computer programs which are able to make better than it has been designed together.
Then in 1983, the term hacker began a negative connotation. Because, in the year for the first time the FBI catch the computer criminal groups "414s" based in Milwaukee, USA. 414 is their local area code. The group then called hackers are convicted of burglary 60 computers, from computers owned by Cancer Center Memorial Sloan-Kettering to a computer owned by Los Alamos National Laboratory. One of the perpetrators enjoy immunity because TESTIMONIALS, while five other players get probation.
Then the next development comes another group who mention themselves as hackers, but not. They are (especially the men) who get the satisfaction of breaking through computer and telephone outsmart (phreaking). Real hackers call these people crackers and do not like to hang out with them. True hackers crackers as people are lazy, irresponsible, and not very smart. Real hackers do not agree to say that by breaking through the security has become hackers.
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| Heat |
This energy is proportional to the temperature of the object. When two objects with different temperatures hand, they will exchange internal energy until the temperature is balanced between the two objects. The amount of energy supplied is the amount of energy that is exchanged. A common mistake to equate heat and internal energy. The difference is the heat associated with the exchange of internal energy and the work done by the system. Understand the difference is needed to understand the first law of thermodynamics.
Infrared radiation is often associated with heat, since objects at room temperature or above will emit radiation mostly concentrated in the middle-infrared range (see black body).
Molar and specific heat capacity depend on the physical properties of the substance is heated, does not depend on the specific properties of the sample. The above definition of heat capacity only work for solid and liquid, but for gas they do not work in general.
Molar heat capacity can be modified when the temperature changes occur in a fixed volume or fixed pressure. If not, use the first law of thermodynamics combined with equations that connect the internal energy of the gas to the temperature.
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| Avocado |
Trees, with stems reach a height of 20 m with round leaves 12 to 25 cm. The flowers are hidden with yellowish green color and a size of 5 to 10 millimeters. Its size varies from 7 to 20 centimeters, with a mass of 100 to 1000 grams; large seeds, 5 to 6.4 centimeters.
The fruit type Buni, has a soft leather uneven dark green to purple-brown, depending on the variety. Avocado fruit flesh is light green and pale yellow near the skin near the seed, with a smooth texture.
The name avocado comes from the Aztec language, ahuacatl (pronounced roughly "awakatl"). Aztec tribe was in the area of Central America and Mexico. Therefore, this fruit was originally known in the area.
At the time of the Spanish forces entered the area around the beginning of the 16th century, a variety of plants from this region, including avocado, was introduced to the population of Europe. The first to introduce the avocado fruit to Europe's population is Martín Fernández de Enciso, one of the leaders of the Spanish forces. He introduced this fruit in 1519 to the people of Europe. At the same time, the Spanish troops that invaded Central America also introduced cocoa, corn, and potatoes to the European community. Since then the avocado fruit began to spread and well known by many of the world population.