How x-ray glasses is made
pubdate:2009-09-29 19:28:21
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X-Ray Glasses Background X-ray glasses are a novelty product designed to create the illusion that the user can see through solid objects. They are plastic framed eyeglasses with special lenses made of cardboard. The manufacturing process involved in their...
How windshield wiper is made
pubdate:2009-09-29 19:28:02
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Windshield Wiper Background Windshield wipers are used to clean the windshield of a car so that the driver has an unobstructed view of the road. A typical wipe angle for a passenger car is about 67 degrees. The blades are 12-30 in (30-76 cm) long with len...
How windmill is made
pubdate:2009-09-29 19:27:51
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Windmill Background A windmill is a structure or machine that converts wind into usable energy through the rotation of a wheel made up of adjustable blades. Traditionally, the energy generated by a windmill has been used to grind grain into flour. Windmil...
How vinegar is made
pubdate:2009-09-29 19:27:42
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Vinegar Background Vinegar is an alcoholic liquid that has been allowed to sour. It is primarily used to flavor and preserve foods and as an ingredient in salad dressings and marinades. Vinegar is also used as a cleaning agent. The word is from the French...
How videotape is made
pubdate:2009-09-29 19:27:30
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Videotape Background Videotape is an integral component of the video technology that has profoundly impacted the media and home entertainment industries. First controlled by the television industry, videotape and video technology are now widely available...
How vending machine is made
pubdate:2009-09-29 19:27:19
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Vending Machine Background From humble single-cent beginnings, vending operations in the United States have evolved into a $36.6 billion industry. Canned cold drinks were the industrys top sellers in 1999, posting $15.7 billion in sales and accounting for...
How unicycle is made
pubdate:2009-09-29 19:27:10
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Unicycle Background A unicycle is a single-wheeled vehicle traditionally used during circus performances. It consists of a spoke wheel, pedals, and a tube shaped body attached to a seat. Unicycles are made like bicycles; individual parts are produced sepa...
How typewriter is made
pubdate:2009-09-29 19:27:00
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Typewriter Background Typewriters fall into five classifications. The standard typewriter was the first kind manufactured. It was too heavy (15-25 lb or 5.6-9.3 kg) to move often, so it was kept on a desk or typing table. The standard typewriter had a wid...
How tuxedo is made
pubdate:2009-09-29 19:26:45
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Tuxedo Background The tuxedo is a mans tailored suit used for semi-formal or formal wear. It may be sewn from a wide variety of colors and fabrics; increasingly, brighter colors and unconventional designs are pervasive in tuxedo styling. Nevertheless, mos...
How toaster is made
pubdate:2009-09-29 19:26:35
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Toaster Background A toaster is a small appliance that uses heat to brown and harden bread. History The practice of browning bread is an ancient one. Early civilizations placed bread over an open fire in order to keep the bread from growing mold. The Roma...