A History of the Bicycle
Today we all enjoy riding bikes and pedaling through the streets on our way to work or simply going for a ride through the park. The bicycle, however, is a versatile invention that has gone through a variety of forms before reaching its present state. The first thing that was created that looked even remotely like a bicycle was developed by the Baron von Drais as an aid to walking in the royal gardens faster. Two wheels of the same size were mounted in a frame which you straddled. This device did not have pedals and instead was propelled by pushing one s feet against the ground creating a kind of gliding walk. Eventually, the machine came known as the Draisienne or hobby horse. This invention enjoyed a short period of popularity as it was not practical for transportation in any place other than a well maintained pathway such as one in a park or garden.
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How Tough Is It To Live In Romania These Days?
Many people tend to think that life in Romania must be difficult at present. All the trials that the country went through during the decades of communist rule must have taken their toll, they would conclude. Also, trying to match steps with the rest of the developed world would surely result in a vicious struggle for survival. Actually, such thinking could not be further from reality. Because the reality is that life in Romania has become easier in the last few years. For the Romanians on the street, life is closely intertwined with work. They can be busy as bees pretty early in the morning. In general, the working day begins at seven in the morning and ends by three in the afternoon. However, Romanians cannot think of neglecting their family life.
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Sword of Damascus Got to do with Modern Day
When the brave and experienced fighting Christian knights trekked the long route to the holy lands to fight the Muslims they were in for a terrible surprise. They were beaten and beaten hard and repeatedly and eventually sent packing back to England and Europe defeated. What they were not prepared for was the secret weapon of the enemy they came to easily slaughter in the name of God. The Muslim fighters had a superior weapon and that was Damascus steel. Their swords and daggers were made from this vastly superior steel. It is said, and probably a fanciful bit of exaggeration, that a Damascus sword could slice through a silk scarf falling through the air. True or not, the Damascus sword was amazingly sharp but also much stronger than normal steel.
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Economic Status of the United States in 1950
Emerging victorious from World War II five years earlier, the United States in 1950 was reaping the benefits of a growing economy ndash benefits that were actually derived out of the country s participation in the War. The destruction and mayhem brought by the global conflict also brought with it several positive contributions to the economy. Some would even argue that the country s participation in World War II actually saved it from the Great Depression. To understand the economic boom of the 1950s it is necessary to appreciate the positive impacts that were borne out of World War II. The foundation for the economic expansion and growth experienced in 1950 and several years after that were laid during World War II. To fund and support the country s war time efforts, it had to recruit millions of American soldiers to be sent to the war front as well as to be stationed at home.
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Insights Into the Minneapolis Bridge Collapse
The incredible collapse of the Minneapolis bridge will send a message to the nation that has been repeatedly sent for decades, but that our political system has refused to effectively respond to. America s physical, engineered infrastructure has been in desperate need for massive spending to repair and replace, but the multi ndash trillion ndash dollar cost has been rejected by local, state and federal politicians. We have had bipartisan government neglect. The bridge fell down because our politicians have let us down. First, understand that I have a professional background in this area. My career started as a metallurgist, than I obtained a Ph.D. in Materials Engineering and became a full professor of metallurgical engineering at the University of Wisconsin, Madison where I taught about mechanical metallurgy and failure analysis, and in my consulting practice regularly worked on explaining actual failures of products and systems.
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Build Your Own HHO Generator!
As gas prices continue to rise worldwide, people everywhere are suffering from the effects. Some people are even having to sell their favorite cars for more fuel efficient models, or canceling vacation plans because they can t afford the gas. Some people, however, are finding a solution that literally falls from the sky. HHO. HHO water fuel is a hydrogen oxygen gas that is derived from water and can be used as fuel in engines. As a matter of fact, HHO fuel from water has been used in torches, lamps, and metallurgy ovens since the early 1900 s. HHO (water fuel), also known as Brown s Gas or Rhode s gas, has been shown to increase fuel economy by up to 40 when used in conjunction with gasoline in standard internal combustion engines.
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Dry Film Lubricants - More Than Just Low Friction Coatings
Dry film lubricants are much more than low friction coatings. That s right. They can be used for metal wear protection, too. Especially when surface contact is severe and localized. Ironically, this is the time when lubrication, not hardness alone, is key. Does your surface condition fall within these types of wear or contributing factors? Wear Adhesion ndash ndash visible by fretting, pits, holes or scales transfer, the result of softer materials dislodging from a widened hardness gap between two moving surfaces. Besides a drop in performance, look for visible changes in surface finish, dimensional or geometric distortion. Wear Abrasion ndash ndash witnessed by scratches, grooves, or corrugations, caused by loose abrasive particles torn away from the wear surface. Also look for negative changes in performance, surface finish, dimensional or geometric distortion.
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An Introduction To Gauges
A gauge, as indicated by its numerous definitions, can mean a lot of things to different users. In order to determine its precise meaning, you would first have to look at the context in which this word is being used. Generally, gauge is the term used to denote a typical form of measurement referring to an object s quantity, capacity or even its dimension. It may also refer to the instrument employed whenever an item is being measured or examined. Gauge may be the basis for making an evaluation or estimation like a test. In mathematics, gauge, as a concept, is applied when studying convex sets. In knitting, gauge would mean the fineness of the total stitches made within a certain length of the material. In physics, it is part of the group forming the mathematical mappings known as the gauge transformation.
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Steel Furniture - Which One Should I Choose?
Furniture is an inseparable element in home decorating. It is furniture that makes the rooms in a home habitable usable. Depending upon the use of the room, the quantity of furniture changes. In early ages a lot of emphasis was given on the size of the furniture. for example the king was give a «throne» which clearly stated his status within the society. From then furniture has become a fashion trend with furniture design as a complete profession in itself. Primarily furniture comes in two main body frames, wooden and steel. The wooden furniture then gets divided into many types of woods depending upon the type of furniture required. For example teak wood, cedar wood, cane furniture etc... The steel furniture also has varieties such as stainless steel, wrought iron furniture, etc...
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History And Working Of A Wristwatch
A wristwatch or a watch is a kind of a timepiece that a person wears for referring to time. Watches first came into existence in 1600s as a modification of spring powered clocks. Modern watches have a lot of other functions like that of a calendar in addition to the display of time. Most common type of wristwatch is worn on person s wrist and is tightened with help of a watchband that is made up of nylon, leather, any other plastic strap, metal link or sometimes, even ceramic. Before this, watches were pocket watches which were carried separately. Watch designed was greatly improved in the 21st Century due to technological advances in the field of metallurgy, physical vapor deposition and composite materials. Better materials are now used for making watches which are more durable, more accurate, more aesthetic and more reliable.
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