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Science And Technology In The United States
Science and technology in the United States has a long history, producing many important figures and developments in the field. The United States of America came into being around the Age of Enlightenment (1685 to 1815), an era in Western philosophy in which writers and thinkers, rejecting the perceived superstitions of the past, instead chose to emphasize the intellectual, scientific and cultural life, centered upon the 18th century, in which reason was advocated as the primary source for legitimacy and authority. Enlightenment philosophers envisioned a "republic of science," where ideas would be exchanged freely and useful knowledge would improve the lot of all citizens. The United States Constitution itself reflects the desire to encourage scientific creativity. It gives the United States Congress the power "to promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Technological And Industrial History Of The United States
The technological and industrial history of the United States describes the United States' emergence as one of the most technologically advanced nations in the world. The availability of land and literate labor, the absence of a landed aristocracy, the prestige of entrepreneurship, the diversity of climate and large easily accessed upscale and literate markets all contributed to America's rapid industrialization. The availability of capital, development by the free market of navigable rivers and coastal waterways, as well as the abundance of natural resources facilitated the cheap extraction of energy all contributed to America's rapid industrialization. Fast transport by the very large railroad built in the mid-19th century, and the Interstate Highway System built in the late 20th century, enlarged the markets and reduced shipping and production costs. The legal system facilitated business operations and guaranteed contracts. Cut off from Europe by the embargo and the British ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Jefferson
Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of the United States, Founding Father who served as the third president of the United States from 1801 to 1809. He was previously the nation's second vice president of the United States, vice president under John Adams and the first United States Secretary of State, United States secretary of state under George Washington. The principal author of the United States Declaration of Independence, Declaration of Independence, Jefferson was a proponent of democracy, republicanism, and individual rights, motivating Thirteen Colonies, American colonists to break from the Kingdom of Great Britain and form a new nation. He produced formative documents and decisions at state, national, and international levels. During the American Revolution, Jefferson represented Virginia in the Continental Congress that adopted the Declaration of Independence. As ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Revolutionary War
The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was a major war of the American Revolution. Widely considered as the war that secured the independence of the United States, fighting began on April 19, 1775, followed by the Lee Resolution on July 2, 1776, and the Declaration of Independence on July 4, 1776. The American Patriots were supported by the Kingdom of France and, to a lesser extent, the Dutch Republic and the Spanish Empire, in a conflict taking place in North America, the Caribbean, and the Atlantic Ocean. Established by royal charter in the 17th and 18th centuries, the American colonies were largely autonomous in domestic affairs and commercially prosperous, trading with Britain and its Caribbean colonies, as well as other European powers via their Caribbean entrepôts. After British victory over the French in the Seven Years' War in 1763, tensions between the motherlan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Surgeon General
The surgeon general of the United States is the operational head of the United States Public Health Service Commissioned Corps (PHSCC) and thus the leading spokesperson on matters of public health in the federal government of the United States. The Surgeon General's office and staff are known as the Office of the Surgeon General (OSG), which is housed within the Office of the Assistant Secretary for Health. The U.S. surgeon general is nominated by the president of the United States and confirmed by the Senate. The surgeon general must be appointed from individuals who are members of the regular corps of the U.S. Public Health Service and have specialized training or significant experience in public health programs. However, there is no time requirement for membership in the Public Health Service before holding the office of the Surgeon General, and nominees traditionally were appointed as members of the Public Health Service and as Surgeon General at the same time. The Surgeon Ge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania
Pennsylvania (; ( Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Maryland to its south, West Virginia to its southwest, Ohio to its west, Lake Erie and the Canadian province of Ontario to its northwest, New York to its north, and the Delaware River and New Jersey to its east. Pennsylvania is the fifth-most populous state in the nation with over 13 million residents as of 2020. It is the 33rd-largest state by area and ranks ninth among all states in population density. The southeastern Delaware Valley metropolitan area comprises and surrounds Philadelphia, the state's largest and nation's sixth most populous city. Another 2.37 million reside in Greater Pittsburgh in the southwest, centered around Pittsburgh, the state's second-largest and Western Pennsylvania's largest city. The state's sub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Navigation
Navigation is a field of study that focuses on the process of monitoring and controlling the movement of a craft or vehicle from one place to another.Bowditch, 2003:799. The field of navigation includes four general categories: land navigation, marine navigation, aeronautic navigation, and space navigation. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks. All navigational techniques involve locating the navigator's position compared to known locations or patterns. Navigation, in a broader sense, can refer to any skill or study that involves the determination of position and direction. In this sense, navigation includes orienteering and pedestrian navigation. History In the European medieval period, navigation was considered part of the set of '' seven mechanical arts'', none of which were used for long voyages across open ocean. Polynesian navigation is probably the earliest form of open-ocean navigation; it ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telescope
A telescope is a device used to observe distant objects by their emission, absorption, or reflection of electromagnetic radiation. Originally meaning only an optical instrument using lenses, curved mirrors, or a combination of both to observe distant objects, the word ''telescope'' now refers to a wide range of instruments capable of detecting different regions of the electromagnetic spectrum, and in some cases other types of detectors. The first known practical telescopes were refracting telescopes with glass lenses and were invented in the Netherlands at the beginning of the 17th century. They were used for both terrestrial applications and astronomy. The reflecting telescope, which uses mirrors to collect and focus light, was invented within a few decades of the first refracting telescope. In the 20th century, many new types of telescopes were invented, including radio telescopes in the 1930s and infrared telescopes in the 1960s. Etymology The word ''telescope'' w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philadelphia
Philadelphia, often called Philly, is the largest city in the Commonwealth of Pennsylvania, the sixth-largest city in the U.S., the second-largest city in both the Northeast megalopolis and Mid-Atlantic regions after New York City. Since 1854, the city has been coextensive with Philadelphia County, the most populous county in Pennsylvania and the urban core of the Delaware Valley, the nation's seventh-largest and one of world's largest metropolitan regions, with 6.245 million residents . The city's population at the 2020 census was 1,603,797, and over 56 million people live within of Philadelphia. Philadelphia was founded in 1682 by William Penn, an English Quaker. The city served as capital of the Pennsylvania Colony during the British colonial era and went on to play a historic and vital role as the central meeting place for the nation's founding fathers whose plans and actions in Philadelphia ultimately inspired the American Revolution and the nation's indep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Charles Willson Peale
Charles Willson Peale (April 15, 1741 – February 22, 1827) was an American Painting, painter, soldier, scientist, inventor, politician and naturalist. He is best remembered for his portrait paintings of leading figures of the American Revolution, and for establishing one of the first museums in the United States. Early life Peale was born in 1741 between modern-day Queenstown, Maryland, Queenstown and Centreville, Maryland, Centreville, Queen Anne's County, Maryland, the son of Charles Peale (1709–1750) and his wife Margaret Triggs (1709–1791). He had a younger brother, James Peale (1749–1831). He was the brother-in-law of Nathaniel Ramsey, a delegate to the Congress of the Confederation. Four years after his father’s death in 1750, Charles became an apprentice to a saddle maker by the name of Nathan Waters when he was thirteen years old. Upon reaching maturity, he opened his own saddle shop and joined the Sons of Liberty in 1764 in opposition to the “court” pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Rush
Benjamin Rush (April 19, 1813) was a Founding Father of the United States who signed the United States Declaration of Independence, and a civic leader in Philadelphia, where he was a physician, politician, social reformer, humanitarian, educator, and the founder of Dickinson College. Rush was a Pennsylvania delegate to the Continental Congress. His later self-description there was: "He aimed right." He served as surgeon general of the Continental Army and became a professor of chemistry, medical theory, and clinical practice at the University of Pennsylvania. Rush was a leader of the American Enlightenment and an enthusiastic supporter of the American Revolution. He was a leader in Pennsylvania's ratification of the U.S. Constitution in 1788. He was prominent in many reforms, especially in the areas of medicine and education. He opposed slavery, advocated free public schools, and sought improved, but patriarchal, education for women, and a more enlightened penal system. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
David Rittenhouse
David Rittenhouse (April 8, 1732 – June 26, 1796) was an American astronomer, inventor, clockmaker, mathematician, surveyor, scientific instrument craftsman, and public official. Rittenhouse was a member of the American Philosophical Society and the first director of the United States Mint. Biography David Rittenhouse was born on April 8, 1732, in Roxborough Township, Philadelphia County, near a small village within Philadelphia called Rittenhousetown. This village is located near Germantown, along the stream Paper Mill Run, which is a tiny tributary of the Wissahickon Creek. When his uncle, William Rittenhouse, died, David inherited his uncle's carpentry tools and instructional books. At a young age, David showed a high level of intelligence by creating a working scale model of his great-grandfather William Rittenhouse's paper mill. He built other scale models in his youth, like a working waterwheel. David never attended elementary school—he was self-taught from his fa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ford Edison Firestone1
Ford commonly refers to: * Ford Motor Company, an automobile manufacturer founded by Henry Ford * Ford (crossing), a shallow crossing on a river Ford may also refer to: Ford Motor Company * Henry Ford, founder of the Ford Motor Company * Ford Foundation, established by Henry and Edsel * Ford Australia * Ford Brasil * Changan Ford * Ford Motor Company of Canada, Canadian subsidiary * Ford of Britain * Ford of Europe, the successor of British, German and Irish subsidiaries * Ford Germany * Ford Lio Ho * Ford New Zealand * Ford Motor Company Philippines * Ford Romania * Ford SAF, the French subsidiary between 1916 and 1954 * Ford Motor Company of South Africa * Fordson, the tractor and truck manufacturing arm of the Ford Motor Company * Ford Vietnam * Ford World Rally Team (aka Ford Motor Co. Team prior to 2005), Ford Motor Company's full factory World Rally Championship team (1978–2012) * Ford Performance * Henry Ford & Son Ltd, Ireland * List of Ford vehicles, models referred ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
