Thursday, March 19, 2020

Sally Hemings Her Relationship With Thomas Jefferson

Sally Hemings Her Relationship With Thomas Jefferson An important note on terms: the term mistress refers to a woman who lived with and was sexually involved with a married man. It does not always imply that the woman did so voluntarily or was completely free to make the choice; women through the ages have been pressured or forced into being mistresses of powerful men. If it was true and examine the evidence outlined below that Sally Hemings had children by Thomas Jefferson, it is also undoubtedly true that she was enslaved by Jefferson (for all but a brief time in France) and that she had no legal ability to choose whether or not to have a sexual relationship with him. Thus, the often-used meaning of mistress in which the woman chooses to have a relationship with a married man would not apply. In the Richmond Recorder in 1802, James Thomson Callendar first began to publicly allege that Thomas Jefferson kept one of his slaves as his concubine and fathered children with her. The name of SALLY will walk down to posterity alongside Mr. Jeffersons own name, Callendar wrote in one of his articles on the scandal. Who Was Sally Hemings? What is known of Sally Hemings? She was a slave owned by Thomas Jefferson, inherited through his wife Martha Wayles Skelton Jefferson (October 19/30, 1748 - September 6, 1782) when her father died. Sallys mother Betsy or Betty was said to be the daughter of a black slave woman and a white ship captain; Betsys children were said to have been fathered by her owner, John Wayles, making Sally a half-sister of Jeffersons wife. From 1784, Sally apparently served as a maid and companion of Mary Jefferson, Jeffersons youngest daughter. In 1787, Jefferson, serving the new United States government as a diplomat in Paris, sent for his younger daughter to join him, and Sally was sent with Mary. After a brief stop in London to stay with John and Abigail Adams, Sally and Mary arrived in Paris. Why Do People Think Sally Hemings Was Jefferson's Mistress? Whether Sally (and Mary) lived at the Jefferson apartments or the convent school is uncertain. What is fairly certain is that Sally took French lessons and may also have trained as a laundress. What is certain is that in France, Sally was free according to French law. What is alleged, and not known except by implication, is that Thomas Jefferson and Sally Hemings began an intimate relationship in Paris, Sally returning to the United States pregnant, Jefferson promising to free any of her (their) children when they reached the age of 21. What little evidence there is of a child born to Sally after her return from France is mixed: some sources say the child died quite young (the Hemings family tradition). What is more certain is that Sally had six other children. Their birth dates are recorded in Jeffersons Farm Book or in letters he wrote. DNA tests in 1998, and a careful rendering of the birth dates and Jeffersons well-documented travels puts Jefferson at Monticello during a conception window for each of the children born to Sally. The very light skin and the resemblance of several of Sallys children to Thomas Jefferson were remarked upon by a good number of those who were present at Monticello. Other possible fathers were either eliminated by the 1998 DNA tests on male-line descendants (the Carr brothers) or dismissed because of internal inconsistencies in the evidence. For example, an overseer reported seeing a man (not Jefferson) coming from Sallys room regularly but the overseer did not start working at Monticello until five years after the time of those visits. Sally served, probably, as a chambermaid at Monticello, also doing light sewing. The affair was revealed publicly by James Callender after Jefferson refused him a job. There is no reason to believe she left Monticello until after Jeffersons death when she went to live with her son Eston. When Eston moved away, she spent her last two years living on her own. There is some evidence that he asked his daughter, Martha, to give Sally her time, an informal way to free a slave in Virginia which would prevent the imposition of the 1805 Virginia law requiring freed slaves to move out of the state. Sally Hemings is recorded in the 1833 census as a free woman. Bibliography Sally Hemings: Redefining History. A video from AE/Biography: Here is the complete story of the woman at the center of the first presidential sex scandal. (DVD or VHS)Jeffersons Secrets: Death and Desire in Monticello.  Andrew Burstein, 2005.  (compare prices)Thomas Jefferson and Sally Hemings: An American Controversy: Annette Gordon-Reed and Midori Takagi, reprint 1998.  (compare prices)Sally Hemings and Thomas Jefferson: History, Memory, and Civic Culture: Jan Lewis, Peter S. Onuf, and Jane E. Lewis, editors, 1999.  (compare prices)Thomas Jefferson: An Intimate History: Fawn M. Brodie, trade paperback, reprint 1998.A President in the Family: Thomas Jefferson, Sally Hemings, and Thomas Woodson: Byron W. Woodson, 2001.(compare prices)Sally Hemings: An American Scandal: The Struggle to Tell the Controversial True Story.  Tina Andrews, 2002.Anatomy of a Scandal: Thomas Jefferson and the Sally Story.  Ã‚  Rebecca L. McMurry, 2002.The Jefferson-Hemings Myth: An American Trave sty.  Ã‚  The Thomas Jefferson Heritage Society, Eyler Robert Coates Sr., 2001 The Jefferson Scandals: A Rebuttal.  Ã‚  Virginus Dabs, Reprint, 1991.Jeffersons Children: The Story of an American Family.  Shannon Lanier, Jane Feldman, 2000.   For young adults.Sally Hemings: Barbara Chase-Riboud, reprint 2000. Historical fiction.

Tuesday, March 3, 2020

Gram Definition and Examples in Science

Gram Definition and Examples in Science A gram is a unit of mass in the metric system defined as one thousandth (1 x 10-3) of a kilogram. Originally, the gram was defined as a unit equal to the mass of one cubic centimeter of pure water at 4 °C (the temperature at which water has maximum density). The definition was changed when the base units for the International System of Units (SI) were redefined by the 26th General Conference of Weights and Measures. The change went into effect May 20, 2019. The symbol for the gram is the lowercase letter g. Incorrect symbols include gr (the symbol for grains), Gm (the symbol for the gigameter), and gm (easily confused with the symbol for the gram-meter, gâ‹…m). Gram may also be spelled gramme. Key Takeaways: Gram Definition The gram is a unit of mass.One gram is one thousandth the mass of one kilogram. The previous definition of the gram was the absolute weight of a 1-centimeter cube of pure water at 4  °C.The symbol for the gram is g.The gram is a small unit of mass. It is approximately the mass of one small paper clip. Examples of Gram Weight Because a gram is a small unit of weight, its size may be difficult for many people to visualize. Here are common examples of objects that have about one gram of mass: A small paperclipA thumbtackA piece of chewing gumOne US billA pen capOne cubic centimeter (milliliter) of waterA quarter teaspoon of sugar Useful Gram Conversion Factors Grams may be converted into several other units of measurement. Some common conversion factors include: 1 gram (1 g) 5 carats (5 ct)1 gram (1 g) 10-3 kilograms (10-3 kg)1 gram (1 g) 15.43236 grains (gr)1 troy ounce (ozt) 31.1035 g1 gram 8.98755179Ãâ€"1013 joules (J)500 grams 1 Jin (Chinese unit of measurement)1 avoirdupois ounce (oz) 28.3495 grams (g) Uses of the Gram The gram is widely used in science, particular chemistry and physics. Outside of the United States, the gram is used to measure non-liquid cooking ingredients and produce (e.g., flour, sugar, bananas). Relative composition for food nutrition labels is stated per 100 grams of product, even within the United States. History of the Gram In 1795, the French National Convention replaced the gravet with the gramme in the metric system. While the term changed, the definition remained that of the weight of one cubic centimeter of water. The word gramme came from the Latin word gramma which in turn derived from the Greek word grmma. The grmma was a unit used in Late Antiquity (around the 4th century AD) equal to two oboli (Greek coins) or one twenty-fourth part of an ounce. The gram was a fundamental unit of mass in the centimeter-gram-second (CGS) system in the 19th century. The meter-kilogram-second (MKS) system of units was proposed in 1901, but the CGS and MKS systems co-exists throughout the early to mid 20th century. The MKS system became the system of base units in 1960. However, the gram was still defined based on the mass of water. In 2019, the gram was defined based on the kilogram. The kilogram has a mass almost exactly equal to that of one liter of water, but its definition has been refined, too. In 2018, Plancks constant was defined. This allowed definition of the kilogram in terms of the second and the meter. Plancks constant h  is defined to be  6.62607015Ãâ€"10−34  and equal to one kilogram meter squared per second (kgâ‹…m2â‹…s−1). Even so, standard masses for the kilogram still exist and are used as secondary standards for kilogram and gram weights. For all practical purposes, a liter of pure water has a mas s of one kilogram and a milliliter of pure water has the mass of one gram. Sources Materese, Robin (November 16, 2018). Historic Vote Ties Kilogram and Other Units to Natural Constants. NIST.  National Institute of Standards and Technology (October 2011). Butcher, Tina; Cook, Steve; Crown, Linda et al. eds. Appendix C – General Tables of Units of Measurement Specifications, Tolerances, and Other Technical Requirements for Weighing and Measuring Devices. NIST Handbook. 44 (2012 ed.). Washington, D.C.: U.S. Department of Commerce, Technology Administration, National Institute of Standards and Technology. ISSN 0271-4027.