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| موضوع: سلسلة كيف تصنع الأشياء الجزء 2 - How Things Are Made Volume 2 الجمعة 15 مارس 2013, 2:11 pm | |
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أخوانى فى الله أحضرت لكم كتاب سلسلة كيف تصنع الأشياء الجزء 2 How Things Are Made Volume 2 Oldrich Ruzicka , Alexandra Hetmerová
و المحتوى كما يلي :
List of Items in this Volume Acrylic Plastic Acrylic plastic refers to a family of synthetic, or man-made, plastic materials containing one or more derivatives of acrylic acid. The most common acrylic plastic is polymethyl methacrylate (PMMA), which is sold under the brand names of Plexiglas, Lucite, Perspex, and Crystallite. Aluminum Beverage Can Ninety-five percent of all beer and soft drink cans in the United States are made of aluminum. American can makers produce about 100 billion aluminum beverage cans a year, equivalent to one can per American per day. Ammunition Small arms ammunition, or cartridges, are used in a variety of firearms ranging from pistols to rifles and shotguns to heavier automatic weapons sometimes called machine guns. The term "bullet" is commonly used to describe the cartridge, when in fact, it actually only refers to the projectile. Antilock Brake System Stopping safely is one of the most important functions a motor vehicle can perform. Failure of the brake system will almost invariably result in property damage, personal injury, or even death. Asphalt Cement Asphalt is a heavy, dark brown to black mineral substance, one of several mixtures of hydrocarbons called bitumens. Asphalt is a strong, versatile weather and chemical-resistant binding material which adapts itself to a variety of uses. Beeper A pager, or beeper, is a small, battery-powered device that alerts the person carrying it when someone is trying to reach them by telephone. The beeper utilizes electronic components sensitive to an FM radio signal and will beep or otherwise sound, flash, or vibrate to alert its carrier. BeerThe family of beverages generally referred to as "beer" has been brewed for centuries. Beers are obtained by the yeast fermentation of malted cereal grains, to which hops and water have been added. Bell Since prehistoric times bells have been used to herald significant events. Bells call the faithful to worship and toll the time. Bicycle Bicycles are one of the world's most popular modes of transportation, with some 800 million bicycles outnumbering cars by two to one. Bicycles are also the most energy-efficient vehicle—a cyclist burns about 35 calories per mile (22 calories per km), while an automobile burns 1,860 calories per mile (1,156 calories per km). Bleach Bleach is a chemical compound derived from natural sources used to whiten fabrics. Bleach works by the process of oxidation, or the alteration of a compound by the introduction of oxygen molecules. Business Jet Business jet aircraft (also known as "biz-jets") typically carry 5-15 passengers and are primarily used as transportation by business executives and government officials. Butter and Margarine Butter is a soft, yellow-hued, edible emulsion of butterfat, water, air, and sometimes salt. It is made from the churning of cream and is used as a spread as well as an important ingredient in cooking and baking. Camera Lens The camera lens is an invention that attempts to duplicate the operation of the human eye. Just like the eye, the lens sees an image, focuses it, and transmits its colors, sharpness, and brightness through the camera to the photographic film, which, like our memory, records the image for processing and future use. CarpetCarpet is a textile floor covering that is distinguished from the more general term "rug" by being fixed to the floor surface and extending wall to wall. The earliest peoples covered the floors of their dwellings with animal skins, grass, or, later, woven reed mats. Cathode-Ray Tube A cathode-ray tube, often called a CRT, is an electronic display device in which a beam of electrons can be focused on a phosphorescent viewing screen and rapidly varied in position and intensity to produce an image. Probably the best-known application of a cathode-ray tube is as the picture tube in a television. Cigarette Tobacco smoking is a practice which has changed little since American natives first stuffed the tobacco they cultivated in the hills of what is today modern Mexico into hollow reeds. As the practice spread through the Americas, different cultures wrapped their tobacco in vegetable leaves or corn husks, or put it in pipes for smoking. CNC Machine Tool CNC or "computer numerical controlled" machines are sophisticated metalworking tools that can create complicated parts required by modern technology. Growing rapidly with the advances in computers, CNCs can be found performing work as lathes, milling machines, laser cutters, abrasive jet cutters, punch presses, press brakes, and other industrial tools. Condom Condoms are thin sheaths worn by men during sexual intercourse to prevent pregnancy and venereal infections. According to the 1995 National Survey of Family Growth, conducted by the National Center for Health Statistics in Hyattsville, Maryland, male condoms or prophylactics are the third most popular form of birth control—preceded only by female sterilization (29.5%) and birth control pills (28.5%)—with usage at 17.7%. Contact Lens The contact lens is a device worn in the eye to correct vision, although some people wear colored contact lens to enhance or change their eye color. The thin plastic lens floats on a film of tears directly over the cornea. Decorative Plastic Laminate Decorative plastic laminate is a durable flat sheeting material used in home and industrial furnishings. It is most familiar under the Formica brand name.Dental Floss Dental floss is a thin filament used to remove debris caught between teeth and between teeth and gums. In 1994, Americans used more than 2.5 million miles of dental floss, the equivalent of circling the earth more than 100 times. Diamond The diamond is the hardest natural substance known. It is found in a type of igneous rock known as kimberlite. Dynamite Dynamite is a commercial explosive used mainly for demolition and mining. Invented in 1866 by Alfred Bernhard Nobel (1833-1896), it is more accurately described as the packaging of nitroglycerin, a highly poisonous explosive liquid, or other volatile compounds such as sensitized ammonium nitrate. Elevator An elevator is a platform, either open or enclosed, used for lifting people or freight to upper floors within a building. Elevators are a standard part of any tall commercial or residential building. Fiberglass Fiberglass refers to a group of products made from individual glass fibers combined into a variety of forms. Glass fibers can be divided into two major groups according to their geometry: continuous fibers used in yarns and textiles, and the discontinuous (short) fibers used as batts, blankets, or boards for insulation and filtration. Fire Engine The term "fire truck" is commonly used as a generic expression to describe a fire-fighting vehicle. Technically, a "fire truck" is a vehicle equipped with ladders and is used mainly to gain access to elevated portions of a structure or to provide a means of applying an elevated stream of water. Fireworks A firework is a device that uses combustion or explosion to produce a visual or auditory effect. Modern pyrotechnics also includes devices similar to fireworks, such as flares, matches, and even solid-fuel rocket boosters used in spaceflight.Freeze-Dried Food Freeze drying is a relatively recent method of preserving food. It involves freezing the food, then removing almost all the moisture in a vacuum chamber, and finally sealing the food in an airtight container. Frozen Yogurt Frozen yogurt is a refreshing, tangy dessert that combines the flavors and textures of ice cream and sherbet. Frozen yogurt is a relative new-comer in the dessert market. Gasoline Gasoline is a volatile, flammable liquid obtained from the refinement of petroleum, or crude oil. It was originally discarded as a byproduct of kerosene production, but its ability to vaporize at low temperatures made it a useful fuel for many machines. Hearing Aid The hearing aid is an instrument that amplifies sounds, particularly speech, for people with hearing impairments. It may be worn comfortably behind the ear, in the outer ear, within the ear canal, in the frames of eyeglasses, or against the body or in the clothing. Ice Skates Ice skating, in one form or another, has existed for thousands of years. Evidence suggests that as long ago as 1000 B.C. In-Line Skates In-line skates were developed in the mid-1980s, but the basic concept of rolling wheels attached to a boot is much older. Earlier roller skates had wheels of wood, plastic, or steel, arranged in pairs. Industrial Robot Industrial robots are mechanical devices which, to a certain degree, replicate human motions. They are used whenever there is a need to reduce the danger to a human, provide more strength or accuracy than a human, or when continuous operation is required. Integrated CircuitAn integrated circuit, commonly referred to as an IC, is a microscopic array of electronic circuits and components that has been diffused or implanted onto the surface of a single crystal, or chip, of semiconducting material such as silicon. It is called an integrated circuit because the components, circuits, and base material are all made together, or integrated, out of a single piece of silicon, as opposed to a discrete circuit in which the components are made separately from different materials and assembled later. Iron Iron is one of the most common elements on earth. Nearly every construction of man contains at least a little iron. Ketchup Ketchup, a tangy, seasoned tomato sauce, is one of America's favorite condiments. Although ketchup, also spelled catsup, is used primarily as a relish for hamburgers, hot dogs, and french fries, it is also a common ingredient for sauces, meatloaf, beans, and stews. Lead Lead is a dense, soft, low-melting metal. It is an important component of batteries, and about 75% of the world's lead production is consumed by the battery industry. Leather Jacket Leather, a material made from tanned animal hides, has been used as clothing since the earliest days of human existence. Prehistoric people wrapped animal skins around their bodies for warmth and to absorb the magical powers that they believed the skins imparted to them. Life Vest Recreational and professional activities bring people in contact with water everyday. Safety on and near the water is an issue for the weekend sail boater as well as for military and rescue personnel. Magnet A magnet is a material that can exert a noticeable force on other materials without actually contacting them. This force is known as a magnetic force and may either attract or repel. Milking MachineThe milking machine is a nearly automatic machine installation for milking cows. It is not a single unit, but rather an assembly of components designed to handle as many as 200 cows an hour. . Paper Formed from wood pulp or plant fiber, paper is chiefly used for written communication. The earliest paper was papyrus, made from reeds by the ancient Egyptians. Perfume Since the beginning of recorded history, humans have attempted to mask or enhance their own odor by using perfume, which emulates nature's pleasant smells. Many natural and man-made materials have been used to make perfume to apply to the skin and clothing, to put in cleaners and cosmetics, or to scent the air. Photographic Film Photographic film is a chemically reactive material that records a fixed or still image when the film is exposed to light. Typically, film is placed in a camera, and light from the image being photographed is allowed to enter and is focused and sometimes made larger or smaller by the camera lens. Plastic Wrap Plastic wrap is a form of food packaging consisting of a thin film of flexible, transparent polymer that clings to itself and to food containers to form a tight seal. The plastic keeps the food fresh by protecting it from air and by preventing dry foods from absorbing moisture and wet foods from losing moisture. Player Piano The player piano begins as a standard, or non-player, acoustic piano. It contains a keyboard, and, when the keys are struck, felt hammers strike tuned metal strings to create musical tones. Polyester Polyester is a synthetic fiber derived from coal, air, water, and petroleum. Developed in a 20thcentury laboratory, polyester fibers are formed from a chemical reaction between an acid and alcohol.Printed Circuit Board A printed circuit board, or PCB, is a self-contained module of interconnected electronic components found in devices ranging from common beepers, or pagers, and radios to sophisticated radar and computer systems. The circuits are formed by a thin layer of conducting material deposited, or "printed," on the surface of an insulating board known as the substrate. Rope A rope is a bundle of flexible fibers twisted or braided together to increase its overall length and tensile strength. The use of ropes for hunting, carrying, lifting, and climbing dates back to prehistoric times. Silk Silk has set the standard in luxury fabrics for several millennia. The origins of silk date back to Ancient China. Ski Although skiing is a popular sport today, the first skis were used as a quick and efficient means of transportation rather than for recreation. It is believed that skis originated in the Scandinavian nations about 5,000 years ago. Smoke Detector A smoke detector is a device that senses the presence of smoke in a building and warns the occupants, enabling them to escape a fire before succumbing to smoke inhalation or burns. Equipping a home with at least one smoke detector cuts in half the chances that the residents will die in a fire. Soap Soap is a combination of animal fat or plant oil and caustic soda. When dissolved in water, it breaks dirt away from surfaces. Stained Glass The technology for making glass dates back at least 5,000 years, and some form of stained glass was used in European Christian churches by the third or fourth century A.D. The art of stained glass flowered in the 12th century with the rise of the Gothic cathedral.Sunscreen The image of a healthy person today does not necessarily include a deep, dark tan. Research has linked exposure to the sun's ultraviolet rays to skin cancer, premature wrinkles, and other skin problems. Telescope A telescope is a device used to form images of distant objects. The most familiar kind of telescope is an optical telescope, which uses a series of lenses or a curved mirror to focus visible light. Tofu Tofu is a highly versatile and nutritious food that is made from soybean curds. Although the word "tofu" is Japanese, the food seems to have originated in ancient China, where the Mandarin term is "doufu." The creation of tofu is generally attributed to the ruler Liu An of Huai-nan during the second century B.C. Toothbrush A toothbrush is a dental instrument used for cleaning teeth, ideally in conjunction with toothpaste or mouthwash. The toothbrush consists of a plastic handle and nylon bristles attached to the head of the brush. Vaccine The development of vaccines to protect against viral disease is one of the hallmarks of modern medicine. The first vaccine was produced by Edward Jenner in 1796 in an attempt to provide protection against smallpox. Whiskey Whiskey (usually spelled whisky in Canada and Scotland) is a spirit produced from fermented grain and aged in wood. A spirit is any alcoholic beverage in which the alcohol content has been increased by distillation. Zinc Zinc is an elemental metal. It is listed on the Periodic Table as "Zn," with an atomic number of 30 and an atomic weight of 65.37, and it melts at 788°F (420°C).
كلمة سر فك الضغط : books-world.net The Unzip Password : books-world.net أتمنى أن تستفيدوا من محتوى الموضوع وأن ينال إعجابكم رابط من موقع عالم الكتب لتنزيل سلسلة كيف تصنع الأشياء الجزء 2 - How Things Are Made Volume 2 رابط مباشر لتنزيل سلسلة كيف تصنع الأشياء الجزء 2 - How Things Are Made Volume 2
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