Wednesday, March 18, 2020

Good Nutrition for Teenagers essays

Good Nutrition for Teenagers essays This article is about a good nutritional diet for growing teenagers. It is very important for teens to eat a certain amount of a certain type of food each day. When girls are almost done fully growing, they start to add some fat padding. But for boys, they begin to gain muscle and increasing the volume of blood. These changes often encourage girls to diet so that they will stay slim. Boys end up overeating to satisfy their appetites. Both of these could end up leading to health problems in the future. Healthy eating does not mean that you can not have your favorite foods. The Dietary Guidelines advise teens to be selective and limit the total fat, saturated fat, cholesterol, and sodium intake. Animal products and hydrogenated vegetable oils are out main source of saturated fat. Only animal fat provides cholesterol. And sodium mostly comes from salt added to foods during processing, home preparation, or at the table. Fats are our most concentrated source of energy. Scientist know that eating too much fat, especially saturated fat and cholesterol, increases blood cholesterol levels, which then increases your risk of heart disease. Too much fat also may lead to overweight and an increase for your risk of some cancers. Most people like the taste of table sugar. There are sweeteners that are hidden in foods like honey, dried foods, concentrated fruit juices, and ingredients such as corn syrup that are added to cookies, soft drinks and lots of other processed foods. Very active teens with high-energy needs can use sweets as an additional source of calories. But these foods contain a limited amount of nutrients and both sugars and starches can contribute to tooth decay. When teens exercise heavily and sweat a lot, they can deplete their sodium reserve, unbalance their body chemistry, and possible become dehydrated. In extreme cases of a lot of sweating a dilute glucose-el ...

Sunday, March 1, 2020

Christopher Wren, the Man Who Rebuilt London

Christopher Wren, the Man Who Rebuilt London After the Great Fire of London in 1666, Sir Christopher Wren designed new churches and supervised the reconstruction of some of Londons most important buildings. His name is synonymous with London architecture. Background Born: October 20, 1632, at East Knoyle in Wiltshire, England Died: February 25, 1723, in London (age 91) Tombstone Epitaph (translated from Latin) in St. Pauls Cathedral, London: Underneath lies buried Christopher Wren, the builder of this church and city; who lived beyond the age of ninety years, not for himself, but for the public good. If you seek his memorial, look about you. Early Training Sickly as a child, Christopher Wren began his education at home with his father and a tutor. Later, he attended school outside of home. Westminster School: Wren may have done some studies here between 1641 and 1646.Oxford: Began astronomy studies in 1649. Received B.A. in 1651, M.A. in 1653 After graduation, Wren worked on astronomy research and became a Professor of Astronomy at Gresham College in London and later at Oxford. As an astronomer, the future architect developed exceptional skills working with models and diagrams, experimenting with creative ideas, and engaging in scientific reasoning. Wrens Early Buildings In the 17th century, architecture was considered a pursuit that could be practiced by any gentleman educated in the field of mathematics. Christopher Wren began designing buildings when his uncle, the Bishop of Ely, asked him to plan a new chapel for Pembroke College, Cambridge. 1663-1665: New chapel for Pembroke College, Cambridge1664-1668: Sheldonian Theatre, Oxford King Charles II commissioned Wren to repair St. Pauls Cathedral. In May 1666, Wren submitted plans for a classical design with a high dome. Before this work could proceed, the fire destroyed the Cathedral and much of London. When Wren Rebuilt London In September 1666, the Great Fire of London destroyed 13,200 houses, 87 churches, St. Pauls Cathedral, and most of Londons official buildings. Christopher Wren proposed an ambitious plan that would rebuild London with wide streets radiating from a central hub. Wrens plan failed, probably because property owners wanted to keep the same land they owned before the fire. However, Wren did design 51 new city churches and the new St Pauls Cathedral. In 1669, King Charles II hired Wren to oversee the reconstruction of all the royal works (government buildings). Notable Buildings 1670-1683: St. Mary Le Bow, at Cheapside, London, UK1671-1677: Monument to the Great Fire of London, with Robert Hooke1671-1681: St. Nicholas Cole Abbey, London1672-1687: St. Stephens Walbrook, London1674-1687: St. James, at Picadilly, London1675-1676: Royal Observatory, Greenwich, UK1675-1710: Saint Pauls Cathedral, London1677: Rebuilt St. Lawrence Jewry, London1680: St. Clement Danes, at Strand, London1682: Christ Church College Bell Tower, Oxford, UK1695: Royal Hospital Chelsea, with John Soane1696-1715: Greenwich Hospital, Greenwich, UK Architectural Style Classical: Christopher Wren was familiar with the 1st Century Roman architect Vitruvius and the Renaissance thinker Giacomo da Vignola, who outlined Vitruviuss ideas in The Five Orders of Architecture. Wrens first buildings were inspired by the classical works of English architect Inigo Jones.Baroque: Early in his career, Wren traveled to Paris, studied French baroque architecture, and met the Italian Baroque architect Gianlorenzo Bernini. Christopher Wren used baroque ideas with classical restraint. His style influenced Georgian architecture in England and the American colonies. Scientific Achievements Christopher Wren was trained as a mathematician and scientist. His research, experiments, and inventions won the praise of the great scientists Sir Isaac Newton and Blaise Pascal. In addition to many important mathematical theories, Sir Christopher: built a transparent beehive to help study beesinvented a weather clock similar to the barometerinvented an instrument for writing in the darkdeveloped improvements in the telescope and the microscopeexperimented with injecting fluids into the veins of animals, laying the groundwork for successful blood transfusionconstructed a detailed model of the moon Awards and Achievements 1673: Knighted1680: Founded the Royal Society of London for Improving Natural Knowledge. Served as president from 1680 to 1682.1680, 1689 and 1690: Served as a Member of Parliament for Old Windsor Quotes Attributed to Sir Christopher Wren A time will come when men will stretch out their eyes. They should see planets like our Earth. Architecture has its political Use; public buildings being the ornament of a country; it establishes a nation, draws people and commerce; makes the people love their native country, which passion is the origin of all great actions in a Commonwealth...architecture aims at eternity. In things to be seen at once, much variety makes confusion, another vice of beauty. In things that are not seen at once, and have no respect one to another, great variety is commendable, provided this variety transgress not the rules of optics and geometry. Sources Architecture Buildings. Royal Hospital Chelsea, 2019. Barozzi da Vignola, Giacomo. Canon of the Five Orders of Architecture. Dover Architecture, 1st edition, Dover Publications, February 15, 2012. Christopher Wren 1632–1723. Oxford Reference, 2019. Geometry quotes. MacTutor History of Mathematics archive, School of Mathematics and Statistics, University of St Andrews, Scotland, February 2019. Geraghty, Anthony. The Architectural Drawings of Sir Christopher Wren at All Souls College, Oxford: A Complete Catalogue. Reinterpreting Classicism: Culture, Reaction Appropriation, Lund Humphries, December 28, 2007. Greenwich Hospital. Great Buildings, 2013. Jardine, Lisa. On a Grander Scale: The Outstanding Life of Sir Christopher Wren. Hardcover, 1 Edition, Harper, January 21, 2003. Schofield, John. St Pauls Cathedral: archaeology and history. 1st Edition, Oxbow Books; 1st edition, September 16, 2016. Tinniswood, Adrian. His Invention So Fertile: A Life of Christopher Wren by Adrian Tinniswood. Paperback, Pimlico, 1765. Whinney, Margaret. Wren. Paperback, Thames Hudson Ltd, May 1, 1998. Windows. St Lawrence Jewry.