Clothing (also called clothes) is fiber and textile material worn on the body. The wearing of clothing is mostly restricted to human beings and is a feature of nearly all human societies. There is no easy way to determine when clothing was first developed, but some information has been inferred by studying lice. The body louse specifically lives in clothing, and diverged from head lice about 107,000 years ago, suggesting that clothing existed at that time. The Western dress code has changed over the past 500+ years. The mechanization of the textile industry made many varieties of cloth widely available at affordable prices. Styles have changed, and the availability ofsynthetic fabrics has changed the definition of "stylish". In the latter half of the 20th century, blue jeans became very popular, and are now worn to events that normally demand formal attire. Activewear has also become a large and growing market. The world of clothing is always changing, as new cultural influences meet technological innovations. Researchers in scientific labs have been developing prototypes for fabrics that can serve functional purposes well beyond their traditional roles, for example, clothes that can automatically adjust their temperature, repel bullets, project images, and generate electricity. Some practical advances already available to consumers are bullet-resistant garments made with kevlar and stain-resistant fabrics that are coated with chemical mixtures that reduce the absorption of liquids.
FOUR GENERATIONS OF COMPUTERSThe first vacuum tubes computers are referred to as first generation, and the estimated period of their use was from 1950 to 1959. is an example of these computers which could perform thousands of calculations per second. Thousands of vacuum tubes emitted a large amount of heat and burnt out frequently.milliseconds to microseconds, or millionths of a second. Second generation computers were smaller, faster and more reliable than first generation computers.The computers that were designed for use of integrated technology were called third generation computers, and the approximate time of these machines was from 1960 to 1979. They can perform many data processing operations in nanoseconds, which are billionths of a second.Fourth generation computers have now arrived, as well as integrated circuits that are being developed have been greatly reduced in size. This is due to the miniaturization, which means that the circuit is much smaller than before; as many as 100 tiny circuits are placed now on a single chip.
Past Simple Nicotine was a one of the strongest vegetable poisons . Smokers more frequent were ill on the on the lung fever, tuberculosis and other diseases . Physical and psychological dependence on nicotine developed far quickly than from an alcohol.
Future Simple Nicotine will be a one of the strongest vegetable poisons . Smokers more frequent will be ill on the on the lung fever,tuberculosis and other diseases . Physical and psychological dependence on nicotine will develop far quickly than from an alcohol .
There is no easy way to determine when clothing was first developed, but some information has been inferred by studying lice. The body louse specifically lives in clothing, and diverged from head lice about 107,000 years ago, suggesting that clothing existed at that time.
The Western dress code has changed over the past 500+ years. The mechanization of the textile industry made many varieties of cloth widely available at affordable prices. Styles have changed, and the availability ofsynthetic fabrics has changed the definition of "stylish". In the latter half of the 20th century, blue jeans became very popular, and are now worn to events that normally demand formal attire. Activewear has also become a large and growing market.
The world of clothing is always changing, as new cultural influences meet technological innovations. Researchers in scientific labs have been developing prototypes for fabrics that can serve functional purposes well beyond their traditional roles, for example, clothes that can automatically adjust their temperature, repel bullets, project images, and generate electricity. Some practical advances already available to consumers are bullet-resistant garments made with kevlar and stain-resistant fabrics that are coated with chemical mixtures that reduce the absorption of liquids.