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Isaac Tyson
Isaac Tyson Jr. (1792–1861) was a Quaker businessman from Baltimore, Maryland, who held a virtual monopoly on world supplies of chromium minerals during the mid-19th century and a very successful entrepreneur and industrialist. The son of Baltimore flour merchant Jesse Tyson senior, and his wife Margaret, the younger Tyson studied geology, mineralogy, and chemistry in France, skills which he would use to great advantages during his industrial career. He first began mining chromite on his farm at Bare Hills in surrounding rural Baltimore County some time after 1808. The sight of a piece of chromite being used to prop a barrel at a Bel Air market in Harford County, Maryland, led him to investigate its source. Tyson was among the first to make the connection between the occurrence of chromite and serpentine barrens, areas of sparse vegetation on metal-rich and inhospitable serpentine deposits. One of these was Soldiers Delight, near northwestern Baltimore County's Owings Mills are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quaker
Quakers are people who belong to a historically Protestant Christian set of Christian denomination, denominations known formally as the Religious Society of Friends. Members of these movements ("theFriends") are generally united by a belief in each human's ability to experience Inward light, the light within or see "that of God in every one". Some profess a priesthood of all believers inspired by the First Epistle of Peter. They include those with evangelicalism, evangelical, Holiness movement, holiness, Mainline Protestant, liberal, and Conservative Friends, traditional Quaker understandings of Christianity. There are also Nontheist Quakers, whose spiritual practice does not rely on the existence of God. To differing extents, the Friends avoid creeds and Hierarchical structure, hierarchical structures. In 2017, there were an estimated 377,557 adult Quakers, 49% of them in Africa. Some 89% of Quakers worldwide belong to ''evangelical'' and ''programmed'' branches that hold ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Virginia
Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth are shaped by the Blue Ridge Mountains and the Chesapeake Bay, which provide habitat for much of its flora and fauna. The capital of the Commonwealth is Richmond; Virginia Beach is the most-populous city, and Fairfax County is the most-populous political subdivision. The Commonwealth's population was over 8.65million, with 36% of them living in the Baltimore–Washington metropolitan area. The area's history begins with several indigenous groups, including the Powhatan. In 1607, the London Company established the Colony of Virginia as the first permanent English colony in the New World. Virginia's state nickname, the Old Dominion, is a reference to this status. Slave labor and land acquired from displaced native tribes fueled the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Connecticut River
The Connecticut River is the longest river in the New England region of the United States, flowing roughly southward for through four states. It rises 300 yards (270 m) south of the U.S. border with Quebec, Canada, and discharges at Long Island Sound. Its watershed encompasses , covering parts of five U.S. states and one Canadian province, via 148 tributaries, 38 of which are major rivers. It produces 70% of Long Island Sound's fresh water, discharging at per second. The Connecticut River Valley is home to some of the northeastern United States' most productive farmland, as well as the Hartford–Springfield Knowledge Corridor, a metropolitan region of approximately two million people surrounding Springfield, Massachusetts, and Hartford, Connecticut. History The word "Connecticut" is a corruption of the Mohegan word ''quinetucket'', which means "beside the long, tidal river". The word came into English during the early 1600s to name the river, which was also called simply "Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black River (Connecticut River)
The Black River is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map, accessed April 1, 2011 river in the U.S. state of Vermont, and a tributary of the Connecticut River. The watershed, or drainage basin, consists of some in southeastern Vermont, almost all of which lies in Windsor County. Course The Black River begins in a small body of water called Black Pond, in Plymouth, Vermont. Winding its way toward the town of Ludlow, its narrow flow picks up a variety of small brooks and streams and is cooled by overhanging branches. Passing through Amherst Lake, Echo Lake, Lake Rescue, and Lake Pauline, the Black River picks up more tributaries and winds through the town of Ludlow, the home of Okemo Mountain Ski Resort. Tumbling through impressive Cavendish Gorge, the river widens as it passes under the Downers Covered Bridge and enters Perkinsville. The North Branch of the Black River, its headwaters in Reading, joins the mai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vermont
Vermont () is a state in the northeast New England region of the United States. Vermont is bordered by the states of Massachusetts to the south, New Hampshire to the east, and New York to the west, and the Canadian province of Quebec to the north. Admitted to the union in 1791 as the 14th state, it is the only state in New England not bordered by the Atlantic Ocean. According to the 2020 U.S. census, the state has a population of 643,503, ranking it the second least-populated in the U.S. after Wyoming. It is also the nation's sixth-smallest state in area. The state's capital Montpelier is the least-populous state capital in the U.S., while its most-populous city, Burlington, is the least-populous to be a state's largest. For some 12,000 years, indigenous peoples have inhabited this area. The competitive tribes of the Algonquian-speaking Abenaki and Iroquoian-speaking Mohawk were active in the area at the time of European encounter. During the 17th century, Fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panic Of 1837
The Panic of 1837 was a financial crisis in the United States that touched off a major depression, which lasted until the mid-1840s. Profits, prices, and wages went down, westward expansion was stalled, unemployment went up, and pessimism abounded. The panic had both domestic and foreign origins. Speculative lending practices in the West, a sharp decline in cotton prices, a collapsing land bubble, international specie flows, and restrictive lending policies in Britain were all factors. The lack of a central bank to regulate fiscal matters, which President Andrew Jackson had ensured by not extending the charter of the Second Bank of the United States, was also key. This ailing economy of early 1837 led investors to panic – a bank run ensued – giving the crisis its name. The run came to a head on May 10, 1837, when banks in New York City ran out of gold and silver. They suspended specie payments and would no longer redeem commercial paper in specie at full face value. A signi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltimore Bank Riot Of 1835
Baltimore ( , locally: or ) is the most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic, and the 30th most populous city in the United States with a population of 585,708 in 2020. Baltimore was designated an independent city by the Constitution of Maryland in 1851, and today is the most populous independent city in the United States. As of 2021, the population of the Baltimore metropolitan area was estimated to be 2,838,327, making it the 20th largest metropolitan area in the country. Baltimore is located about north northeast of Washington, D.C., making it a principal city in the Washington–Baltimore combined statistical area (CSA), the third-largest CSA in the nation, with a 2021 estimated population of 9,946,526. Prior to European colonization, the Baltimore region was used as hunting grounds by the Susquehannock Native Americans, who were primarily settled further northwest than where the city was later built. Colonist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrrhotite
Pyrrhotite is an iron sulfide mineral with the formula Fe(1-x)S (x = 0 to 0.2). It is a nonstoichiometric variant of FeS, the mineral known as troilite. Pyrrhotite is also called magnetic pyrite, because the color is similar to pyrite and it is weakly magnetic. The magnetism decreases as the iron content increases, and troilite is non-magnetic.Vaughan, D. J.; Craig, J. R. "Mineral Chemistry of Metal Sulfides" Cambridge University Press, Cambridge: 1978. . Structure Pyrrhotite exists as a number of polytypes of hexagonal or monoclinic crystal symmetry; several polytypes often occur within the same specimen. Their structure is based on the NiAs unit cell. As such, Fe occupies an octahedral site and the sulfide centers occupy trigonal prismatic sites. Materials with the NiAs structure often are non-stoichiometric because they lack up to 1/8th fraction of the metal ions, creating vacancies. One of such structures is pyrrhotite-4C (Fe7S8). Here "4" indicates that iron vacancies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anthracite
Anthracite, also known as hard coal, and black coal, is a hard, compact variety of coal that has a submetallic luster. It has the highest carbon content, the fewest impurities, and the highest energy density of all types of coal and is the highest ranking of coals. Anthracite is the most metamorphosed type of coal (but still represents low-grade metamorphism), in which the carbon content is between 86% and 97%. The term is applied to those varieties of coal which do not give off tarry or other hydrocarbon vapours when heated below their point of ignition. Anthracite ignites with difficulty and burns with a short, blue, and smokeless flame. Anthracite is categorized into standard grade, which is used mainly in power generation, high grade (HG) and ultra high grade (UHG), the principal uses of which are in the metallurgy sector. Anthracite accounts for about 1% of global coal reserves, and is mined in only a few countries around the world. The Coal Region of northeastern Pen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hot Blast
Hot blast refers to the preheating of air blown into a blast furnace or other metallurgical process. As this considerably reduced the fuel consumed, hot blast was one of the most important technologies developed during the Industrial Revolution. Hot blast also allowed higher furnace temperatures, which increased the capacity of furnaces. As first developed, it worked by alternately storing heat from the furnace flue gas in a firebrick-lined vessel with multiple chambers, then blowing combustion air through the hot chamber. This is known as regenerative heating. Hot blast was invented and patented for iron furnaces by James Beaumont Neilson in 1828 at Wilsontown Ironworks in Scotland, but was later applied in other contexts, including late bloomeries. Later the carbon monoxide in the flue gas was burned to provide additional heat. History Invention and spread James Beaumont Neilson, previously foreman at Glasgow gas works, invented the system of preheating the blast for a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strafford, Vermont
Strafford is a town in Orange County, Vermont, Orange County, Vermont, United States. The population was 1,094 at the 2020 United States Census, 2020 census. The town of Strafford was created on August 12, 1761 by way of a royal charter which King George III of Great Britain issued to Governor Benning Wentworth of New Hampshire. The town was named after the Earl of Strafford. Its town house is one of the most famous in Vermont, sitting atop a hill in the historic town square. Strafford was one of thirteen Vermont towns isolated by flooding caused by Hurricane Irene (2011), Hurricane Irene in 2011. Geography According to the United States Census Bureau, the town has a total area of 44.3 square miles (114.8 km2), of which 44.2 square miles (114.5 km2) is land and 0.1 square mile (0.3 km2) (0.25%) is water. The West Branch of the Ompompanoosuc River flows through the town.DeLorme (1996). ''Vermont Atlas & Gazetteer''. Yarmouth, Maine: DeLorme. Dem ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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