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History Of Springfield, Massachusetts
The history of Springfield, Massachusetts dates back to the colonial period, when it was founded in 1636 as ''Agawam Plantation'', named after a nearby village of Algonkian-speaking Native Americans. It was the northernmost settlement of the Connecticut Colony. The settlement defected from Connecticut after four years, however, later joining forces with the coastal Massachusetts Bay Colony. The town changed its name to ''Springfield'', and changed the political boundaries among what later became the states of New England. The decision to establish a settlement sprang in large part from its favorable geography, situated on a steep bluff overlooking the Connecticut River's confluence with three tributaries. It was a Native American crossroad for two major trade routes: Boston-to- Albany and New York City-to-Montreal. Springfield also sits on some of the northeastern United States' most fertile soil. Springfield flourished for the decades after its founding, operating as a trading ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siege Of Springfield
The siege of Springfield was a siege of the colonial New England settlement of Springfield by Native Americans during King Philip's War. Springfield was the second colonial settlement in New England to be burned to the ground during the war, following Providence Plantations. King Philip's War remains, per capita, the bloodiest war in American history. Background English colonists from Massachusetts Bay Colony established a settlement on the Connecticut River in 1636. They maintained a complex relationship with local Indian tribes. The fur trade stood at the heart of their economic interactions, a lucrative business that guided many other policy decisions. The colonists traded wampum, cloth, and metal in exchange for furs. The tribes sometimes used land as collateral in exchange for colonial goods on the future promise of beavers. However, trade with the colonists made pelts so lucrative that the beaver was rapidly overhunted. The volume of the trade fell from a 1654 high of 3,7 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Small Arms
A firearm is any type of gun designed to be readily carried and used by an individual. The term is legally defined further in different countries (see Legal definitions). The first firearms originated in 10th-century China, when bamboo tubes containing gunpowder and pellet projectiles were mounted on spears to make the portable fire lance, operable by a single person, which was later used effectively as a shock weapon in the Siege of De'an in 1132. In the 13th century, fire lance barrels were replaced with metal tubes and transformed into the metal-barreled hand cannon. The technology gradually spread throughout Eurasia during the 14th century. Older firearms typically used black powder as a propellant, but modern firearms use smokeless powder or other propellants. Most modern firearms (with the notable exception of smoothbore shotguns) have rifled barrels to impart spin to the projectile for improved flight stability. Modern firearms can be described by their caliber ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Goodyear
Charles Goodyear (December 29, 1800 – July 1, 1860) was an American self-taught chemist and manufacturing engineer who developed vulcanized rubber, for which he received patent number 3633 from the United States Patent Office on June 15, 1844. Goodyear is credited with inventing the chemical process to create and manufacture pliable, waterproof, moldable rubber. Goodyear's discovery of the vulcanization process followed five years of searching for a more stable rubber and stumbling upon the effectiveness of heating after Thomas Hancock. His discovery initiated decades of successful rubber manufacturing in the Lower Naugatuck Valley in Connecticut, as rubber was adopted to multiple applications, including footwear and tires. The Goodyear Tire and Rubber Company is named after him. Early life Charles Goodyear was born on 29 December 1800, in New Haven, Connecticut, the son of Amasa Goodyear, and the oldest of six children. His father was a descendant of Stephen Goodyear, s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vulcanized Rubber
Vulcanization (British: Vulcanisation) is a range of processes for hardening rubbers. The term originally referred exclusively to the treatment of natural rubber with sulfur, which remains the most common practice. It has also grown to include the hardening of other (synthetic) rubbers via various means. Examples include silicone rubber via room temperature vulcanizing and chloroprene rubber (neoprene) using metal oxides. Vulcanization can be defined as the curing of elastomers, with the terms 'vulcanization' and 'curing' sometimes used interchangeably in this context. It works by forming cross-links between sections of polymer chain which results in increased rigidity and durability, as well as other changes in the mechanical and electrical properties of the material. Vulcanization, in common with the curing of other thermosetting polymers, is generally irreversible. The word vulcanization is derived from Vulcan, the Roman god of fire and forge. History Rubber—latex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Blanchard (inventor)
Thomas Blanchard (June 24, 1788 – April 16, 1864) was an American inventor who lived much of his life in Springfield, Massachusetts, where in 1819, he pioneered the assembly line style of mass production in America, and also invented the first machining lathe for interchangeable parts. Blanchard worked, for much of his career, with the Springfield Armory. In 1825, Blanchard also invented America's first car, which he called a "horseless carriage," powered by steam. During Blanchard's lifetime, he was awarded over twenty-five patents for his creations.. Biography Tacks He was born in Sutton, Massachusetts. He had a fondness for mechanical employment, and was associated with his brother in the manufacture of tacks by hand. This process was exceedingly slow and tedious,. and his first machine, made and patented in 1806, was a mechanical tack-maker, which could fabricate five hundred tacks per minute, each much better than tacks made by hand. He sold the rights to his machine for $ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Assembly Line
An assembly line is a manufacturing process (often called a ''progressive assembly'') in which parts (usually interchangeable parts) are added as the semi-finished assembly moves from workstation to workstation where the parts are added in sequence until the final assembly is produced. By mechanically moving the parts to the assembly work and moving the semi-finished assembly from work station to work station, a finished product can be assembled faster and with less labor than by having workers carry parts to a stationary piece for assembly. Assembly lines are common methods of assembling complex items such as automobiles and other transportation equipment, household appliances and electronic goods. Workers in charge of the works of assembly line are called assemblers. Concepts Assembly lines are designed for the sequential organization of workers, tools or machines, and parts. The motion of workers is minimized to the extent possible. All parts or assemblies are hand ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interchangeable Parts
Interchangeable parts are parts (components) that are identical for practical purposes. They are made to specifications that ensure that they are so nearly identical that they will fit into any assembly of the same type. One such part can freely replace another, without any custom fitting, such as filing. This interchangeability allows easy assembly of new devices, and easier repair of existing devices, while minimizing both the time and skill required of the person doing the assembly or repair. The concept of interchangeability was crucial to the introduction of the assembly line at the beginning of the 20th century, and has become an important element of some modern manufacturing but is missing from other important industries. Interchangeability of parts was achieved by combining a number of innovations and improvements in machining operations and the invention of several machine tools, such as the slide rest lathe, screw-cutting lathe, turret lathe, milling machine and m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Noah Webster
Noah ''Nukh''; am, ኖህ, ''Noḥ''; ar, نُوح '; grc, Νῶε ''Nôe'' () is the tenth and last of the pre-Flood patriarchs in the traditions of Abrahamic religions. His story appears in the Hebrew Bible ( Book of Genesis, chapters 5–9), the Quran and Baha'i writings. Noah is referenced in various other books of the Bible, including the New Testament, and in associated deuterocanonical books. The Genesis flood narrative is among the best-known stories of the Bible. In this account, Noah labored faithfully to build the Ark at God's command, ultimately saving not only his own family, but mankind itself and all land animals, from extinction during the Flood. Afterwards, God made a covenant with Noah and promised never again to destroy all the Earth's creatures with a flood. Noah is also portrayed as a "tiller of the soil" and as a drinker of wine. Biblical narrative Tenth and final of the pre-Flood (antediluvian) Patriarchs, son to Lamech and an unnamed mo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shays Rebellion
Shays Rebellion was an armed uprising in Western Massachusetts and Worcester in response to a debt crisis among the citizenry and in opposition to the state government's increased efforts to collect taxes both on individuals and their trades. The fight took place mostly in and around Springfield during 1786 and 1787. American Revolutionary War veteran Daniel Shays led four thousand rebels (called Shaysites) in a protest against economic and civil rights injustices. In 1787, Shays' rebels marched on the federal Springfield Armory in an unsuccessful attempt to seize its weaponry and overthrow the government. The confederal government found itself unable to finance troops to put down the rebellion, and it was consequently put down by the Massachusetts State militia and a privately funded local militia. The widely held view was that the Articles of Confederation needed to be reformed as the country's governing document, and the events of the rebellion served as a catalyst for the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Revolution
The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going from hand production methods to machines, new chemical manufacturing and iron production processes, the increasing use of steam power and water power, the development of machine tools and the rise of the mechanized factory system. Output greatly increased, and a result was an unprecedented rise in population and in the rate of population growth. Textiles were the dominant industry of the Industrial Revolution in terms of employment, value of output and capital invested. The textile industry was also the first to use modern production methods. The Industrial Revolution began in Great Britain, and many of the technological and architectural innovations were of British origin. By the mid-18th century, Britain was the world's leadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silicon Valley
Silicon Valley is a region in Northern California that serves as a global center for high technology and innovation. Located in the southern part of the San Francisco Bay Area, it corresponds roughly to the geographical areas San Mateo County and Santa Clara County. San Jose is Silicon Valley's largest city, the third-largest in California, and the tenth-largest in the United States; other major Silicon Valley cities include Sunnyvale, Santa Clara, Redwood City, Mountain View, Palo Alto, Menlo Park, and Cupertino. The San Jose Metropolitan Area has the third-highest GDP per capita in the world (after Zurich, Switzerland and Oslo, Norway), according to the Brookings Institution, and, as of June 2021, has the highest percentage of homes valued at $1 million or more in the United States. Silicon Valley is home to many of the world's largest high-tech corporations, including the headquarters of more than 30 businesses in the Fortune 1000, and thousands of startup c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Precision Engineering
Precision engineering is a subdiscipline of electrical engineering, software engineering, electronics engineering, mechanical engineering, and optical engineering concerned with designing machines, fixtures, and other structures that have exceptionally low tolerances, are repeatable, and are stable over time. These approaches have applications in machine tools, MEMS, NEMS, optoelectronics design, and many other fields. Overview Professors Hiromu Nakazawa and Pat McKeown provide the following list of goals for precision engineering: # Create a highly precise movement. # Reduce the dispersion of the product's or part's function. # Eliminate fitting and promote assembly, especially automatic assembly. # Reduce the initial cost. # Reduce the running cost. # Extend the life span. # Enable the design safety factor to be lowered. # Improve interchangeability of components so that corresponding parts made by other factories or firms can be used in their place. # Improve quality c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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