Who is James joul?

Answer 1

James Prescott Joule was born at Salford, near Manchester, England, on December 24, 1818. He was the second of five children born to a wealthy brewery owner. As a child, James was weak and shy, and suffered from a spinal disorder. Because of these limitations, he preferred studies to physical activity. Although his spinal problem later improved, it affected him throughout his life.

James was educated at home until he was 15. He then went to work in the family brewery. However, he and his older brother continued their education part-time with private tutors in Manchester.

From 1834 until 1837, they were taught chemistry, physics, the scientific method, and mathematics by the famous English chemist John Dalton. (Like James Joule, Dalton was a Bible-believing Christian.) James gratefully acknowledged the key role that Dalton played in his becoming a scientist. 'It was from his instruction that I first formed a desire to increase my knowledge by original researches', Joule said.1

When their father became ill, James and his brother took over running the brewery. James therefore did not have the opportunity to attend university. However, his great desire was to continue to study science, so he set up a laboratory in his home and began experimenting before and after work each day. James saw this desire to study science as a natural consequence of his Christian faith. As he later wrote, 'it is evident that an acquaintance with natural laws means no less than an acquaintance with the mind of God therein expressed.

Answer 2

James Prescott Joule was born on 24th December 1818 in Salford, Lancashire, England. He came from a wealthy family who were involved in the brewing industry. As befitting his perceived status, along with his elder brother Benjamin, he was educated at home by private tutors. At the age of sixteen he was taught by the Manchester scientist John Dalton for around three years. In 1837, James went to work in the family brewery. He had developed an interest in science and began to study electric motors. He was able to carry out his experiments in his laboratory housed in the cellar of his parents' home. Funding for his work came from the family fortune. What did James Prescott Joule do? Joule had the idea that he could use the electric motor to convert the family brewery from steam power to electric power. As a course of his experiments he decided that it would be too expensive to do this, as the work done by the motor did not come out very highly when the cost of the zinc used in the batteries that powered it was taken into consideration. It was still cheaper to produce the steam power by burning coal. James Joule was very painstaking and paid great attention to detail. He spent a great deal of his life in determining the mechanical equivalent of heat, inspired from his belief that heat was derived from work. In 1840, he established that the heat produced in a wire by an electrical current is proportional to the resistance of the wire multiplied by the square of the current, which is known as Joule's Law. Still with the idea that it was possible to convert mechanical work directly into heat without any electrical steps, Joule experimented from 1842 to 1878 on such conversions. Around 1845, he was able to demonstrate in a paddle-wheel experiment, which involved the shaft and paddles being driven by a falling weight suspended from a pulley, that the same amount of work, however done, always produced the same amount of heat. This enabled Joule to conclude that heat was a form of energy. The mechanical equivalent of heat is a constant and is designated by the symbol J in honour of James Joule. What else do we know about James Prescott Joule? James Joule married Amelia Grimes in 1847 and whilst on honeymoon in the Alps continued his science experiments. He had always wanted to show that when water falls through 778 feet that it rises one degree Fahrenheit in temperature (FPS units were the ones Joule used). The opportunity came when he visited Chamonix and armed with a huge thermometer, he attempted this exploit. He was unsuccessful, as the water did not fall through that distance and also produced too much spray to allow his experiment to work. Joule and his wife had three children, Benjamin Arthur (b.1849), Alice Amelia (b.1852) and a son who died in 1854 along with his wife. Joule did not remarry. William Thompson (later to be Lord Kelvin) worked with Joule between 1852 and 1862 on experiments which led to the discovery known as the Joule-Kelvin cooling effect. James Prescott Joule died on 11th October 1889 at Sale, Cheshire, England. By white family..Kuwait......