|
Franklin's Electrostatic Machine
Franklin's electrostatic machine is a high-voltage static electricity- generating device used by Benjamin Franklin in the mid-18th century for research into electrical phenomena. Its key components are a glass globe which turned on an axis via a crank, a cloth pad in contact with the spinning globe, a set of metal needles to conduct away the charge developed on the globe by its friction with the pad, and a Leyden jara high-voltage capacitorto accumulate the charge. Franklin's experiments with the machine eventually led to new theories about electricity and inventing the lightning rod. Background Franklin was not the first to build an electrostatic generator. European scientists developed machines to generate static electricity decades earlier. In 1663, Otto von Guericke generated static electricity with a device that used a sphere of sulfur. Francis Hauksbee developed a more advanced electrostatic generator around 1704 using a glass bulb that had a vacuum. He later replaced ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franklin Machine
Franklin may refer to: People * Franklin (given name) * Franklin (surname) * Franklin (class), a member of a historical English social class Places Australia * Franklin, Tasmania, a township * Division of Franklin, federal electoral division in Tasmania * Division of Franklin (state), state electoral division in Tasmania * Franklin, Australian Capital Territory, a suburb in the Canberra district of Gungahlin * Franklin River, river of Tasmania * Franklin Sound, waterway of Tasmania Canada * District of Franklin, a former district of the Northwest Territories * Franklin, Quebec, a municipality in the Montérégie region * Rural Municipality of Franklin, Manitoba * Franklin, Manitoba, an unincorporated community in the Rural Municipality of Rosedale, Manitoba * Franklin Glacier Complex, a volcano in southwestern British Columbia * Franklin Range, a mountain range on Vancouver Island, British Columbia * Franklin River (Vancouver Island), British Columbia * Franklin Strait, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ewald Georg Von Kleist
A member of the von Kleist family, Ewald was born in Wicewo (Wicewo) in Farther Pomerania. He studied jurisprudence at the University of Leipzig and the University of Leyden and may have started his interest in electricity at the latter university under the influence of Willem 's Gravesande. From 1722–1745 he was dean of the cathedral at Kamień Pomorski in the Kingdom of Prussia, after which he became president of the royal court of justice in Koszalin. On 11 October 1745 he independently invented the Kleistian jar which could store electricity in large quantities. He communicated this discovery to a group of Berlin scientists in late 1745, and the news was transferred in a confused form to Leyden University where it was further investigated. This became more commonly known as the Leyden jar after graduate student Pieter van Musschenbroek Pieter van Musschenbroek (14 March 1692 – 19 September 1761) was a Dutch scientist. He was a professor in Duisburg, Utrecht, and Le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amber
Amber is fossilized tree resin that has been appreciated for its color and natural beauty since Neolithic times. Much valued from antiquity to the present as a gemstone, amber is made into a variety of decorative objects."Amber" (2004). In Maxine N. Lurie and Marc Mappen (eds.) ''Encyclopedia of New Jersey'', Rutgers University Press, . Amber is used in jewelry and has been used as a healing agent in folk medicine. There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions. Amber occurring in coal seams is also called resinite, and the term ''ambrite'' is applied to that found specifically within New Zealand coal seams. Etymology The English word ''amber'' derives from Arabic (ultimately from Middle Persian ''ambar'') via Middle Latin ''ambar'' and Middle French ''ambre''. The word was adopted in Middle English in the 14th century ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Penn
Thomas Penn (8 March 1702 – 21 March 1775) was an English landowner and mercer who was the chief proprietor of Pennsylvania from 1746 to 1775. Penn is best known for his involvement in negotiating the Walking Purchase, a contested land cession treaty he negotiated with Lenape chief Lappawinsoe in 1737 which transferred control over 1,200,000 acres (4,860 km2) of territory from the Lenape tribe to the Province of Pennsylvania. Born in 1702 in Kensington, England into a Quaker family, Penn was apprenticed to a London mercer at a young age by his father William due to his family's financial insecurity. When his father died in 1718, William's last will and testament gave his proprietorship of Pennsylvania to his three sons, including Penn. In 1732, Penn travelled to the colony to assume control over his family's interests in Pennsylvania, including collecting unpaid rents. As his family back in England were deeply in debt, Penn abandoned his father's conciliatory approach t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philip Syng
Philip Syng (September 29, 1703May 8, 1789) was, like his namesake father, Philip Syng, Sr. (1676–1739), a renowned silversmith who created fine works in silver and sometimes gold for the wealthy families of Philadelphia, Pennsylvania. In 1752 he created the Syng inkstand, which was used to sign the 1776 United States Declaration of Independence and the United States Constitution in 1787. Biography Philip Syng was born in Cork, Ireland, to Philip Syng, a silversmith by trade, and Abigail Murdock Syng. In 1714 the Syng family emigrated to the United States staying first in Annapolis, Maryland, and then moving to Philadelphia. Philip Syng, Sr. trained all three of his sons as silversmiths. Besides becoming one of the highly-sought Philadelphia silversmiths, Philip Syng, Jr. was a member of Benjamin Franklin's Junto, and was a founder of the Library Company of Philadelphia, the Union Fire Company, Philadelphia Contributionship, Pennsylvania Hospital, and the American Philosoph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Hopkinson
Thomas Hopkinson (April 6, 1709 – November 5, 1751) was a lawyer, public official, and prominent figure in colonial Philadelphia, Pennsylvania. Early life Thomas Hopkinson was born in London, on April 6, 1709, the son of Mary Hopkinson, and Thomas Hopkinson, a London scrivener and a member of Middle Temple. He was educated there, attending Oxford University (but not graduating) and then studying law at London. He then immigrated about 1731 to Pennsylvania, where he became a merchant, lawyer, judge, and natural philosopher, as well as a friend of Benjamin Franklin. Career He worked with Franklin on several of his experiments on electricity and was a member of the Junto. As a young barrister, he was appointed deputy to Charles Read, Clerk of the Orphans' Court of Philadelphia. Upon his death, he was commissioned as his successor on January 20, 1736–7, filling that position until November 5, 1751, when he died. On the same date, he was commissioned Master of Rolls for the city ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archibald Spencer
Archibald Spencer (January 1, 1698 – January 13, 1760) was a businessman, scientist, doctor, clergyman, and lecturer. He did seminars on science and for a while made a living at this. His lecture demonstrations were on medicine, light, and electricity. He is noted for introducing the phenomenon of electricity to Benjamin Franklin. As a businessman, he made investments in and helped form Anne Arundel County, Maryland. Early life Spencer was born on January 1, 1698, in Edinburgh, Scotland. Adam, his given name at birth, later changed to Archibald. Some writers on Benjamin Franklin's life have stated that Spencer was a medical doctor, and a male midwife. He specialized in diseases of the eye. Historian Nick Bunker claims he obtained his medical degree from the University of St Andrews of Scotland in 1739 by providing testimonials from two reputable physicians. Career Spencer was a businessman in the British Colonies of America. From 1743 to 1751 he professionally conducted sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ebenezer Kinnersley
Ebenezer Kinnersley (30 November 1711 – 4 July 1778]) was an English scientist, inventor and lecturer, specializing in the investigation of electricity. Life and Scientific Studies Ebenezer Kinnersley was a son of Rev. William Kinnersley, an assistant pastor of the Lower Dublin Baptist church. Ebenezer became a member of this church while young, and in 1743 was ordained as a minister, but he never served as a pastor. He travelled to America with his parents in 1714. His early life was passed at Dublin, and then he went to Philadelphia, where he gave evidence of his genius as a scholar and mechanician. It is supposed that he taught a school there and associated with Benjamin Franklin, who soon learned to appreciate young Kinnersley, whom he designates as "an ingenious neighbor." When Franklin saw Dr Spence, a Scotsman in Boston, experiment with a glass tube and silk, and observed the effects that were produced, he communicated the fact to his associates in Philadelphia, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Benjamin Franklin's Static Electricity Tube (Collinson Tube), Maker Unknown, London, C
Benjamin ( he, ''Bīnyāmīn''; "Son of (the) right") blue letter bible: https://www.blueletterbible.org/lexicon/h3225/kjv/wlc/0-1/ H3225 - yāmîn - Strong's Hebrew Lexicon (kjv) was the last of the two sons of Jacob and Rachel (Jacob's thirteenth child and twelfth and youngest son) in Jewish, Christian and Islamic tradition. He was also the progenitor of the Israelite Tribe of Benjamin. Unlike Rachel's first son, Joseph, Benjamin was born in Canaan according to biblical narrative. In the Samaritan Pentateuch, Benjamin's name appears as "Binyamēm" ( Samaritan Hebrew: , "son of days"). In the Quran, Benjamin is referred to as a righteous young child, who remained with Jacob when the older brothers plotted against Joseph. Later rabbinic traditions name him as one of four ancient Israelites who died without sin, the other three being Chileab, Jesse and Amram. Name The name is first mentioned in letters from King Sîn-kāšid of Uruk (1801–1771 BC), who called himself “K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Historical Publications And Records Commission
The National Archives and Records Administration (NARA) is an " independent federal agency of the United States government within the executive branch", charged with the preservation and documentation of government and historical records. It is also tasked with increasing public access to those documents which make up the National Archive. NARA is officially responsible for maintaining and publishing the legally authentic and authoritative copies of acts of Congress, presidential directives, and federal regulations. NARA also transmits votes of the Electoral College to Congress. It also examines Electoral College and Constitutional amendment ratification documents for prima facie legal sufficiency and an authenticating signature. The National Archives, and its publicly exhibited Charters of Freedom, which include the original United States Declaration of Independence, United States Constitution, United States Bill of Rights, and many other historical documents, is headquarter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Library Company Of Philadelphia
The Library Company of Philadelphia (LCP) is a non-profit organization based in Philadelphia. Founded in 1731 by Benjamin Franklin as a library, the Library Company of Philadelphia has accumulated one of the most significant collections of historically valuable manuscripts and printed material in the United States. The current collection size is approximately 500,000 books and 70,000 other items, including 2,150 items that once belonged to Franklin, the Mayflower Compact, major collections of 17th-century and Revolution-era pamphlets and ephemera, maps, and whole libraries assembled in the 18th and 19th centuries. The collection also includes first editions of ''Moby-Dick'' and ''Leaves of Grass''. Early history The Library Company was an offshoot of the Junto, a discussion group in colonial Philadelphia, that gravitated around Benjamin Franklin. On July 1, 1731, Franklin and a number of his fellow members among the Junto drew up articles of agreement to found a library, for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peter Collinson (botanist)
Peter Collinson FRS (January 1694 – 11 August 1768) was an English gardener, botanist and horticulturist. A Fellow of the Royal Society and an avid gardener, Collinson served as the middleman for an international exchange of scientific ideas in Georgian era London. Life and work Born the son of a London woollen draper, Collinson entered his father's business and developed an interest in botany. His family belonged to the Gracechurch Street Meeting of the Religious Society of Friends (i.e. Quakers). In October 1728, Collinson wrote to Sir Hans Sloane, President of the Royal Society, about strange events in Kent and on 7 November 1728, he was proposed for Fellowship of the Society. Collinson supported the struggle of Thomas Coram, William Hogarth, and others to establish a charitable institution that would welcome babies abandoned by their mothers. A Royal Charter to start the Foundling Hospital was granted by George II on 17 October 1739. The charter lists Collinson as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
_by_Arthur_Devis_(1712-1787).jpg "Click for more on -> Thomas Penn")
