Monday, October 29, 2007

whaleboat

A whaleboat is a type of open boat that is comparatively narrow and pointed at both ends, enabling it to move either forwards or backwards equally well. It was initially developed for whaling, and later became popular for work along beaches, as it does not need to be turned around for beaching or refloating.
Whaleboats are usually oar-powered, although in whaling use often had a dismountable mast and sails, too. After 1850 most were fitted with a centerboard for marine. When sailing, steering was with a rudder; when rowing, navigation was done with an oar held over the stern. Whaleboats used in whaling had a stout post mounted on the aft deck, approximately which the steersman would cinch the rope once the whale had been harpooned, and by which the whale would drag the boat awaiting it was killed.
The term "whaleboat" may be used casually of larger whalers, or of a boat used for whale watching.

Wednesday, October 24, 2007

Genetics

It is the science of genes, heredity, and the variation of organisms. The word "genetics" was first suggested to describe the study of inheritance and the science of variation by the prominent British scientist William Bateson in a personal letter to Adam Sedgwick, dated April 18, 1905. Bateson first used the term "genetics" publicly at the Third International Conference on Genetics (London, England) in 1906.

Heredity and variations form the basis of genetics. Humans applied knowledge of genetics in prehistory with the domestication and breeding of plants and animals. In modern research, genetics provides important tools for the investigation of the function of a particular gene, e.g., analysis of genetic interactions. Within organisms, genetic information generally is carried in chromosomes, where it is represented in the chemical structure of particular DNA molecules.

Genes encode the information necessary for synthesizing the amino-acid sequences in proteins, which in turn play a large role in determining the final phenotype, or physical appearance, of the organism. In diploid organisms, a dominant allele on one chromosome will mask the expression of a recessive gene on the other.

Monday, October 15, 2007

Computer

A computer is a device for manipulate data according to a list of instructions. Computers take many physical forms. Early electronic computers were the size of a large room, consuming a lot power as more than a few hundred modern personal computers. Today, computers can be made little enough to fit into a wrist watch and be motorized from a watch battery. Society has come to be familiar with personal computers and their portable corresponding, the laptop computer, as icons of the information age; they are what most people think of as "a computer".
However, the most common form of computer in use today is by far the fixed computer. Embedded computers are small, simple devices that are frequently used to control other devices—for example; they may be found in machines range from fighter aircraft to industrial robots, digital cameras, and even children's toys.

Sunday, October 07, 2007

A Brave New Audience

Over time, technology has become highly developed. This is adverse for mankind because the more superior, the more serious television gets, the not as good as it is for its viewers. It always feeds people information with which they take in without even significant its perils. What they think is an admirable source of information, is actually a hazardous medium through which millions of Americans reduce their intelligence. According to Neil Postman, it is simply just a damage of content because it focuses more on descriptions, rather than content.
In Postman's essay, The Huxleyan Warning, he exhorts readers that Huxley's prophecies are launch to be realized. He claims that society will enchain themselves through their love for their own oppression; the technologies that disable their abilities to think. This technology comes through the shape of a television screen. These prophecies, which were first introduced to us by Aldous Huxley, are observable in the movie The Truman Show. Truman is a normal human being, accidentally being watched by billions of viewers ever since his birth. Viewers are stuck to their television sets watching his every move.