Inventors free essay sample

Benjamin Franklin This portrait. Which depicts Franklin as a learned scientist and inventor. Was one of his favorites. Pictured on the left is the signal-bell apparatus Franklin devised to detect the presence of electrically-charged clouds. The bolt of lightning , seen through the open window, became an attribute closely identified with Franklin. At Franklins death French philosopher/scientist Jacques Target wrote: He seized the lightning from the sky and the scepter from the hand of tyrants. The Franklin Stove Franklin wrote this description of the stove he had invented to promote sales of a model being manufactured by his friend Robert Grace. A series of partitioned Iron plates permits a continuous supply of fresh warm air, separated from the smoke, to be distributed equally throughout the room. By controlling the airflow, less heat is lost, and much less wood is needed. Franklins stove became so popular In England and Europe that this essay was frequently reprinted and translated Into several foreign languages. We will write a custom essay sample on Inventors or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Franklins Design for Bifocals Ben]amen Franklin Is credited with the Invention of bifocal glasses, which he sketched ere for his friend George , a London merchant and pamphleteer. Franklin told he found them particularly useful at dinner in France, where he could see the food he was eating and watch the facial expressions of those seated at the table with him, which helped Interpret the words being said. He wrote: l understand French better by the help of my spectacles. Experiments in Electricity In 1751, Peter , President of the Royal Society, arranged for the publication of a series of letters from Benjamin Franklin, 1747 to 1750, describing his experiments on electricity. Franklin demonstrated his new theory of positive and negative charges, suggested the electrical nature of lightning, and proposed a tall, grounded rod as a protection against lightning. These experiments established Franklins reputation as a scientist. ND In 1753 he received the Couple Medal of the Royal Society for his contributions to the knowledge of lightning and electricity. On Electricity Benjamin Franklins formulation of a general theory of electrical action won him an internationa l reputation in pure science in his own day. Writing to Dutch physician and scientist Jan , Franklin responds to a number of his friends questions about electricity and the Elided Jar, an early form of electrical condenser.In this draft scientific report, It appears that Franklin wrote his answers first using dark Ink, leaving room for the questions, which he wrote In red Ink. 1 In this lengthy essay intended for his fellow scientist Jan , Benjamin Franklin attempted to explain the effects of lightning on a church steeple in Ceremony, Italy, by describing the effects of electricity on various metals. He based his hypothesis on other written accounts, and used this sketch of a tube of tin foil to aid in his explanation.Mapping the Gulf Stream Although Spanish explorers had described the Gulf Stream, Franklin, fascinated by the fact that the sea Journey from North America to England was shorter than the return trip, asked his cousin, sea captain Timothy Folder, to map its dimensions and course. Franklin published this map and hi s directions for avoiding it in the Transactions of the American Philosophical Society in 1786. Systematic research, conducted by the U. S. Coast Survey, of the Gulf Stream did not occur until 1845.Franklin Battles the Common Cold Despite his eminence in scientific circles, Benjamin Franklin remained concerned with the more practical applications of scientific study. This sheet entitled Definition of a Cold is one of a series bearing Franklins notes for a paper he intended to write on the subject. Exercise, bathing, and moderation in food and drink consumption were Just some of his steps to avoid the common cold. The Aurora Benjamin Franklins interest in the mystery of the Northern Lights is said to have begun on his voyages across the North Atlantic to England.He ascribed the shifting lights to a concentration of electrical charges in the polar regions intensified by the snow and other moisture. He reasoned that this overcharging caused a release of electrical illumination into the air. In this essay, which he wrote in English and French, Franklin analyzed the causes of the Aurora . It was read at the French CADÂ © DES Sciences on April 14, 1779. Franklins Harmonica Before leaving London in July 1762, Franklin wrote to the Italian philosopher .Not having anything new to report on their shared interest in electricity, Franklin described the improvements he had made to the musical glasses invented by Richard . By fitting a series of graduated glass discs on a spindle laid horizontal in a case and revolving the spindle by a foot treadle, Franklin could create bell-like tones by touching his wet fingers to the revolving glasses. Franklins harmonica became popular in Europe, with Mozart and Beethoven composing music for it.