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.
Monday, October 29, 2007
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.
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.
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.
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.
Thursday, September 27, 2007
Mobile phone culture or customs
In less than twenty years, mobile phones have gone from being odd and expensive pieces of equipment used by businesses to an enveloping low-cost personal item. In a lot of countries, mobile phones now outnumber land-line telephones, with the majority adults and many children now owning mobile phones. In the United States, 50% of children hold the mobile phones. It is not uncommon for young adults to simply own a mobile phone instead of a land-line for their house. In some developing countries, where there is little existing fixed-line communications, the mobile phone has become extensive. According to the CIA World information book the UK now has extra mobile phones than people.
With high levels of mobile telephone access, a mobile culture has evolved, where the phone becomes a key social tool, and people rely on their mobile phone address book to keep in contact with their friends. Many people keep in touch by using SMS, and an entire culture of testing has developed from this. The commercial market in SMS is increasing. It is very useful for all the people.
With high levels of mobile telephone access, a mobile culture has evolved, where the phone becomes a key social tool, and people rely on their mobile phone address book to keep in contact with their friends. Many people keep in touch by using SMS, and an entire culture of testing has developed from this. The commercial market in SMS is increasing. It is very useful for all the people.
A Nucleus a Day
Wow, one more exciting day is about to begin. Sometimes I get so exhausted of being the brains of this whole process, but it is fun to be the boss and give the orders. Lets study a usual day I am a nucleus. My life is very difficult because normal things going on and I hardly have a time to talk to you. But as I started telling you about me then my strength as well finish it up. I am the most significant organelle. It can be reduced in size by rapping it around a nucleosides arrangement of his tone proteins. The nucleus that is in me is the site for RNA and the covering of ribosomal subunits for export to the cytosol. The DNA string is sometimes a very long particle, and sometimes it needs to be compressed to fit into a certain spot. This can result in the DNA strand to be compact so it will fit in the space. Well cannot talk any longer but it was time to take a break. My primary purpose is to organize the actions inside the cell.
Monday, September 10, 2007
A simple Girl
Around and around it soared in brutal circles, tearing from side to side her animated temples. At a standstill, they did not do anything. Still, they simply laid there with faces of chalk, invalid of all human emotions. She could not look at them in hopes of relieve, for long. The cherry rivers that flowed across her eyes, streamed down her steaming cheeks, made vision impossible.
Life was simply the stack of decayed flesh that enclosed her. From his immortal lips hung the bodies of all those who died struggle for him and all those who had tampered with self luxury. For that, she dammed him for all eternity; in every form he understood she dammed him. He had been her guiding angle and now it became evident to her. No prayer would pass her conditions lips, for this had been his movement she had fought and they had lost other than just a clash.
Life was simply the stack of decayed flesh that enclosed her. From his immortal lips hung the bodies of all those who died struggle for him and all those who had tampered with self luxury. For that, she dammed him for all eternity; in every form he understood she dammed him. He had been her guiding angle and now it became evident to her. No prayer would pass her conditions lips, for this had been his movement she had fought and they had lost other than just a clash.
Monday, September 03, 2007
Electron microscopes
Electron microscopes, which use beams of electrons as a substitute of light, are designed for very high magnification usage. Electrons, which have a much smaller wavelength than visible light, allow a much higher resolution. The main limitation of the electron beam is that it must pass through a vacuum as air molecules would otherwise scatter the beam.
Monday, August 27, 2007
Arts & Crafts
The Arts and Crafts progress began mainly as a search for real and meaningful styles for the 19th century and as a response to the miscellaneous revival of famous styles of the Victorian era and to "inexpressive" machine-made manufacture aided by the Industrial Revolution. Considering the instrument to be the source cause of all repetitive and ordinary evils, some of the protagonists of this association turned completely away from the use of technology and towards handcraft, which tended to focus their productions in the hands of receptive but comfortable consumers.
Yet, while the Arts and Crafts movement was in great part a effect to industrialization, if looked at on the entire, it was neither anti-modern. Some of the European factions thought that machines were in fact required, but they should only be used to reduce the tediousness of routine, repetitive tasks. At the same time, some Arts and Crafts leaders felt that things should also be reasonable. The difference between quality production and 'demo' design, and the effort to settle the two, subject design debate at the turn of the twentieth century.
Yet, while the Arts and Crafts movement was in great part a effect to industrialization, if looked at on the entire, it was neither anti-modern. Some of the European factions thought that machines were in fact required, but they should only be used to reduce the tediousness of routine, repetitive tasks. At the same time, some Arts and Crafts leaders felt that things should also be reasonable. The difference between quality production and 'demo' design, and the effort to settle the two, subject design debate at the turn of the twentieth century.
Monday, August 20, 2007
Navigation
Navigation by ships depends on the capability to measure latitude and longitude. Latitude is quite easy to determine through outer space navigation, but the measurement of longitude requires exact measurement of time. This need was a major motivation for the development of accurate mechanical clocks. John Harrison created the first highly exact marine chronometer in the mid-18th century. The Noon gun in Cape Town still fires an exact signal to allow ships to check their chronometers.
Monday, August 13, 2007
Eisenhower jacket
An Eisenhower jacket, or "Ike" jacket, is a kind of military uniform blouse, or shortened coat, terminating in a waistband. Introduced by U.S. Army General and Supreme Commander of the Allied forces in Europe Dwight David Eisenhower, his new design firstly appeared in 1943 as a modified edition of the U.S. Army's regulation service uniform coat, the idea based on the British Battle Dress coat which predated the American Ike Jacket by a number of years.
After World War II, jackets of this style became a suitable type of coat to wear when operating a vehicle and/or carrying a sidearm, which made variations of it trendy with civilian police agencies.
After World War II, jackets of this style became a suitable type of coat to wear when operating a vehicle and/or carrying a sidearm, which made variations of it trendy with civilian police agencies.
Tuesday, August 07, 2007
Cock ring or cock ring
A cock ring or cock ring is a ring that is located around a man’s penis, usually at the base, primarily to slow the leakage of blood from the erect penile tissue, thus maintaining erection for longer. Cock rings can be worn around just the penis or penis and scrotum, or just the scrotum alone, though this is usually designated as a testicle cuff. Rings can be made of a variety of different materials; most commonly leather, rubber, or silicone, though nylon and metal are also used either as the main component or part of the closure.
Tuesday, July 31, 2007
Supra-aural
Supra-aural headphones are much like circumaural; only the pads go away on top of the ear, making them lighter and smaller. They may have circled pads, much like circumaural headphones, only smaller and go on top of the ear. They may also have basic, "open" pads. They were commonly bundled with personal stereos during the 1980s.
Sunday, July 22, 2007
Network Time Protocol
The Network Time Protocol is a protocol for synchronizing the clocks of computer systems over packet-switched, variable-latency information networks. NTP uses UDP port 123 as its transport layer. It is designed particularly to resist the effects of variable latency. NTP is one of the oldest Internet protocols still in use. NTP was originally designed by Dave Mills of the University of Delaware, who still maintains it, along with a team of volunteers.
Friday, July 13, 2007
Grape
A grape is the non-climacteric fruit that grows on the perennial and deciduous woody vines of the folks Vitaceae. Grapes grow up in clusters of 6 to 300, and can be black, blue, golden, green, purple, red, pink, brown, peach or white. They can be eaten raw or used for producing jam, grape juice, and jelly, wine and grape seed oil. Cultivation of grapevines occurs in vineyards, and is called viticulture. One who studies and practices growing grapes for wine is called a viticulturist. The leaves of the grape vine itself are considered safe to eat and are used in the production of dolmades.
Sunday, July 08, 2007
Local area network
A local area network (LAN) is a computer network layer a small geographic area, like a home, office, or group of buildings.Current LANs are most probable to be based on switched IEEE 802.3 Ethernet technology, running at 10, 100, 1,000 or 10,000 Mbit/s, or on IEEE 802.11 Wi-Fi technology. Every node or computer in the LAN has its own computing power but it can also access extra devices on the LAN subject to the permissions it has been permitted. These could include data, processing power, and the capability to communicate or chat with other users in the network.The defining characteristics of LANs, in difference to Wide area networks (WANs), comprise their much higher data transfer rates, lesser geographic range, and lack of a need for leased telecommunication lines.
A local area network (LAN) is a computer network layer a small geographic area, like a home, office, or group of buildings.Current LANs are most probable to be based on switched IEEE 802.3 Ethernet technology, running at 10, 100, 1,000 or 10,000 Mbit/s, or on IEEE 802.11 Wi-Fi technology. Every node or computer in the LAN has its own computing power but it can also access extra devices on the LAN subject to the permissions it has been permitted. These could include data, processing power, and the capability to communicate or chat with other users in the network.The defining characteristics of LANs, in difference to Wide area networks (WANs), comprise their much higher data transfer rates, lesser geographic range, and lack of a need for leased telecommunication lines.
Sunday, July 01, 2007
Neem cake
Neem cake natural manure is the by-product obtained in the process of cold pressing of Neem fruits and kernels, and the solvent removal process for neem oil cake. It is a potential source of organic manure under the Bureau of India Standards, Neem has established considerable potential as a fertilizer. For this purpose, neem cake and neem leaves are particularly promising. Puri , in his book on neem has given details about neem seed cake as manure and nitrification inhibitor. The author has described that after processing neem cake can be used for partial replacement of poultry and cattle feed.
Tuesday, June 26, 2007
ARM
The ARM architecture (Advanced RISC Machine or Acorn RISC Machine) is a 32-bit RISC processor architecture developed by ARM Limited that is widely used in a number of embedded designs. Due to their power saving features, ARM CPUs are dominant in the mobile electronics market, where low power consumption is a critical design goal.
Today, the ARM family accounts for over 75% of all 32-bit embedded CPUs, making it one of the most prolific 32-bit architectures in the world. ARM CPUs are found in all corners of consumer electronics, from portable devices to computer peripherals. Important branches in this family include Marvell's XScale and the Texas Instruments OMAP series.
Today, the ARM family accounts for over 75% of all 32-bit embedded CPUs, making it one of the most prolific 32-bit architectures in the world. ARM CPUs are found in all corners of consumer electronics, from portable devices to computer peripherals. Important branches in this family include Marvell's XScale and the Texas Instruments OMAP series.
Saturday, June 23, 2007
Dry foods
Flake food is a type of proprietary or artificially manufactured fish food inspired by a wide variety of tropical and saltwater fish and invertebrates. It is ideally suited to top dwellers and mid-water fish though numerous bottom dwelling species consume flake food once it has settled on the bottom. Flake food is baked to remove moisture and create the flaking, thus allowing for a longer shelf life. Generally the more moisture a particular example of fish food contains, the more readily it will deteriorate in quality.
Dry foods is also available as pellets, sticks, tablets, granules, and wafers, manufactured to float or sink, depending on the species they are designed to feed.
Dry foods is also available as pellets, sticks, tablets, granules, and wafers, manufactured to float or sink, depending on the species they are designed to feed.
Sunday, June 17, 2007
Fertilisation
Fertilisation or fertilization also known as conception, fecundation and syngamy, is fusion of gametes to form a new organism of the same species. In animals, the process involves a sperm fusing with an ovum, which finally leads to the development of an embryo. Depending on the animal species, the process can occur within the body of the female in internal fertilisation, or outside in the case of external fertilisation.The entire process of development of new individuals is called procreation, the act of species reproduction.
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