ADVANCED MATERIALS (MAE 539)HOMEWORK 2METAL FOAMS IN WATCHMAKINGAUTHORS:NARENDER SHANKAR LAKSHMANABIµN BAUTISTA RODRIGUEZWATCHMAKINGINTRODUCTIONTimekeeping has been an important science since time immemorial! In 1450 BC, The Egyptians designed and relied on a sundial, which used the natural rhythm of day and night. As the years and centuries went by, humans began developing more precise instruments to keep time. Watchmaking is the art of making watches. Today, watchmaking industry employs thousands of specially trained craftsmen, engineers and scientists to design, develop and produce a range of watches for various purposes. Ranging from making accurate time measurements in high-speed environments, using timepieces in space as a reliable source of reference time, to having a …show more content…
[2] Precious metals like gold, silver and platinum have been used as bases by many watchmakers. Alloys comprising of these elements have been synthesized and used specifically by the watchmaking industries.In the recent years, composite materials have been used for making watches. Carbon fiber has been used quite extensively by the industry and has captured the attention of consumers like never before!Figure: Hublot Big Bang CarbonSource: http://www.hublot.comwww.hublot.comWHY METAL FOAMS IN WATCHES?The classes of watches discussed so far are obviously expensive. They range from a few thousand dollars to the millions. This is one bittersweet fact that makes metal foams a prospective revolutionary material for watchmaking.Getting to the technical features, metal foams are lightweight, offer extremely good shock resistance and energy absorption characteristics and are good electromagnetic shields. These features, above all; inspired the authors of this report to investigate the possible use of these exciting materials in watches.Metal foams have been shown to display superior mechanical and electromagnetic
Ms. Nelle Lee is the author of “To kill a Mockingbird” which is a very famous 20th century novel. Recently “Go Set a Watchman” which is a sequel to her previous book was controversially published. Lee is very old and in bad health. Some people believe she never wanted “Go set a Watchman” published. Other people thought that she did want this book published. One of these people is her lawyer Tonja Carter. Carter is the spokesperson for Ms. Lee since Lee is mostly deaf and blind. The people who believe Lee did not want this book published believe Carter is manipulating her in order to make more money off the new book. To answer the question of “Should the publisher have published the book?” I will rely on Joseph L. Badaracco Jr.’s Defining Moments
Bulletproof vests are used world-wide in order to protect the wearer of the vest from a bullet. A shot from a gun can be deadly to anyone and therefore, people searched for protection. They found the answer when they discovered Bulletproof vests. But how can a small vest worn around the torso save someone’s life? In order to understand how it is possible, the process of how it’s made, comes into question. Considering the copious amount of lives they have saved, Bulletproof vests are made by sewing woven fibers into vests and layering them on top of each other, in order to deflect bullets.
Pounding metal and fabricating metal in thin sheets and sections that humans need or want has a long history. The discovery of how to make and control fire made extracting metals form or more efficient instead of having to find almost pure nuggets of metal. In many civilizations copper was the metal they used but that was succeeded by bronze eventually it is made of copper and tin.
Furthermore, Under Armour’s goal is to expand their wearable watches and bracelets into built-in sensors that go into the clothing they create. This product will allow consumers to be accessory free and still will be able to track their activity levels. This innovative idea will surely bring in consumers, and provide Under Armour with the push they need to directly compete
In England during the 1700's and earlier, law enforcement and policing were organized by the local communities and local town authorities instead of being administered and functioning at the national level as it does today. One constable could be assisted by two or more volunteers from the local community and together they would patrol the town for crime and criminals to keep the peace. Within the early colonies “policing took on two forms which were both informal and communal”, the “Watch system and the private-for-profit” (Potter) system of policing. The watch system was employed by local volunteers whose main duty was to warn the town of approaching danger. The night watch was not a predominantly effective tool against crime as many of the Watchmen often “slept or drank whilst they were on duty” (Potter) and paid very little mind to the crime
Alloys in the ornament manufacturing are a general use of gold. Because of it is...
Apple launched the Watch in Los Angeles, London, Tokyo, Milan, and Berlin, with pre-orders reaching 7 million before the launch date (Harding, 2015). Since Apple designed the Watch to reach multiple market segments, the market reach as seen in the pre-order numbers before the product launch is extensive. The introduction of the EDITION model has allowed Apple to extend into the luxury watch market, likely increasing its performance and widening the gap between itself and other companies in the smart watch market.
technique used with a more viscous liquid and a wider nozzle results in a foam.
In the early part of this century was a time when industry was booming with growth around the installation of major railroads. With this growth came the transatlantic cable, the telegraph, and a whole lot of steel. Steel would be needed in the construction of these new transportation systems and communications were now possible between businesses and industries. (Wren, 2005)
engines, axels and the like - sits not in Detroit, Tokyo or Stuttgart, but in the
Different techniques are discussed in this review paper for dealing with different issues of designing wearable antennas. Electrical and dielectric properties of textile materials are not readily available. So, it needs to be calculated first. Detuning effect due to human body can be minimized by putting conductive layer between antenna and human tissue. Bending effect of antenna can be reduced by using EBG structure. Water absorption effect on antenna also can be minimized by choosing appropriate materials. By putting cover to antenna, we can reduce effect of physical abrasion and other environmental
was because it was a status symbol to be seen wearing a watch and the
1995A lost foam vaccum casting process to produce stainless steel with low carbon content .some of members like OH Babcock,Wilcox got the patent for this.
Globalization is basically about attempting to make things global and expanding products and companies over seas to countries all around the world. It can also be classified as the process of creating languages, services, and products that apply not just to an individual neighborhood or city or country, but to the whole world. Canadians have experienced many benefits that globalization has brought to their lives including the availability to products and services from all around the world. However, at the same time on the other side of the world it has had many pessimistic or negative effects on workers in developing countries. As Globalization began to boom, the number of sweatshops also increased greatly and its effects were most definitely harming in many ways to the individuals employed by them; mainly women and children. Out of all the industries that have become globalized, the textile and garment industries are amongst the most. Mutually the textile and garment industries make up one of the largest sources of industrial employment in the world. In virtually every country around the world clothing is being produced but being sold somewhere else. Around 30 million people are making clothes and textiles around the globe and out of those thirty million, most of them are women. Around the world women and children are suffering because of the introduction of sweatshops, low wages, unsafe working environments, free trade zones, foreign control, sub contracting and abuses of human and worker rights.
I am sitting in a still room, borrowing a moment to inhale the serenity that seems to float in the air like a cloud of fog, and listening to the silence. Listening closely, I notice that the silence, an absence of apparent sound, is its own symphony; it is an orchestration that is being kept alive by a carefully beating drum. I concentrate on the drum’s beats, observing that its rhythm is steadily and confidently throbbing. When glancing, I make a discovery and erupt with laughter. At this moment, precisely 1:43 PM, I realize that the incessant pulsation is not the tempo of tranquility, but rather the ticking of my watch. A small, thin, golden band strapped to my wrist, the watch is a living creature; it has a face, hands, a heartbeat. It has its own mechanized mind, a willpower to keep ticking at the same pace despite the circumstances; some of the more durable watches even tick under water. Within each brisk movement of the second-hand, a human has laughed, some have shed tears, one is gripped by death, and yet another is being given the gift of life.