Christian Doppler Life, Research, Doppler Effect

Christian Doppler (November 28, 1803–March 17, 1853), a mathematician and physicist, is best known for describing the phenomenon now known as the Doppler effect. His work was essential to the advancement of fields like physics and astronomy. The Doppler effect has many practical applications, including medical imaging, radar speed guns, weather radars, and more. Fast Facts: Christian Doppler Full Name: Christian Andreas DopplerOccupation: Physicist and mathematician Known For: Discovered the phenomenon known as the Doppler effectBorn: November 28, 1803 in Salzburg, AustriaDied: March 17, 1853 in Venice, ItalySpouses Name Mathilde SturmChildrens Names: Matilda, Bertha, Ludwig, Hermann, AdolfKey Publication: On the Coloured Light of the Binary Stars and Some Other Stars of the Heavens (1842) Early Life Christian Andreas Doppler was born into a family of stonemasons in Salzburg, Austria on November 29, 1803. He was expected to join the family business, but his poor health prevented him from doing so. Instead, he pursued academic interests. He studied physics at the Polytechnical Institute in Vienna, graduating in 1825. He then went on to the University of Vienna to study mathematics, mechanics, and astronomy. For many years, Doppler struggled to find work in academia, and for a time he worked as a bookkeeper at a factory. Dopplers academic career took him from Austria to Prague, where he married and began a family with Mathilde Sturm, with whom he had five children. The Doppler Effect Over the course of Dopplers academic career, he published well over 50 papers on subjects including physics, astronomy, and mathematics. In 1842, as a result of his physics research, he published a treatise entitled Concerning the Coloured Light of Stars. In it, he described what is now known as the Doppler Effect. Doppler observed that, when he was stationary, the pitch of sound changed as a source moved towards or away from him. This led him to assume that the light from a star might shift in color according to its speed relative to Earth. This phenomenon is also called the Doppler shift.   Doppler published several works describing his theories. Numerous researchers demonstrated those theories through experimentation. After his death, researchers were able to prove that the Doppler effect could be applied to light, in addition to sound. Today, the Doppler effect has enormous significance and numerous practical applications in fields like astronomy, medicine, and meteorology. Later Career and Death In 1847, Doppler moved to Schemnitz in Germany, where he taught physics, math, and mechanics at the Academy of Mines and Forests. Political troubles forced the Doppler family to move once again—this time to the University of Vienna, where he was appointed director of the Physical Institute. By the time Doppler was appointed to his post at the University of Vienna, his health had begun to deteriorate even more. He suffered from chest pains and breathing problems, symptoms that today would most likely have led to a tuberculosis diagnosis. He continued to research and teach, but illness kept him from completing all of his research. In 1852, he traveled to Venice, Italy, looking for a better climate in which he could recuperate, but his health continued to fail. On March 17, 1853, he died of pulmonary disease, with his wife at his side.  Ã‚   Christian Doppler left a significant scientific legacy. The Doppler effect has been used to advance research in astronomy, develop medical imaging technology, and much more. Sources Doppler, Johann Christian. Complete Dictionary of Scientific Biography. Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/doppler-johann-christianâ€Å"Christian Andreas Doppler.† Clavius Biography, www-groups.dcs.st-and.ac.uk/history/Biographies/Doppler.html.Katsi, V, et al. Advances in Pediatrics., U.S. National Library of Medicine, 2013, www.ncbi.nlm.nih.gov/pmc/articles/PMC3743612/.

Lab 1 Intro to Science Essay - 1348 Words

TYPE YOUR FULL NAME: Clarence Loveless TYPE YOUR FULL NAME: Clarence Loveless UMUC Physical Science 101/103 Lab 1: Introduction to Science INSTRUCTIONS: * On your own and without assistance, complete this Lab 1 Answer Form and submit it via the Assignments Folder by the date listed on your Course Schedule (under Syllabus). * To conduct your laboratory exercises, use the Laboratory Manual that is available in the classroom. Laboratory exercises on your CD may not be updated. * Save your Lab 1 Answer Form in the following format: LastName_Lab1 (e.g., Smith_Lab1). * Submit your document in a Word (.doc or .docx) or Rich Text Format (.rtf) for best compatibility. Exercise 1: Data Interpretation Table 1: Water†¦show more content†¦Why? I would use a bar graph because it would be easy to follow and understand the information presented. 7. Graph the data from Table 1: Water Quality vs. Fish Population (found at the beginning of this exercise). You may use Excel, then â€Å"Insert† the graph, or use another drawing program. You may also draw it neatly by hand and scan your drawing. If you choose this option, you must insert the scanned jpg image here. 8. Interpret the data from the graph made in Question 7. The graph above displays the relationship between increased dissolved oxygen and a fish population. Exercise 2: Testable Observations Determine which of the following observations (A-J) could lead to a testable hypothesis. For those that are testable: Write a hypothesis and null hypothesis What would be your experimental approach? What are the dependent and independent variables? What is your control? How will you collect your data? How will you present your data (charts, graphs, types)? How will you analyze your data? 1. When a plant is placed on a window sill, it grows three inches faster per day than when it is placed on a coffee table in the middle of the living room. testable Hypothesis – IF a plant is placed on a window sill THEN it will grow faster than a plant placed on a coffee table in the middle of a living room. Null Hypothesis – A plant on a window sill does not grow faster than a plant on a living room coffee tableShow MoreRelatedTimetable: Touring Car Racing and Life Science Team1676 Words   |  7 PagesHealth amp; Life Science – co-ordinator – Mike Keenan mike.keenan@uws.ac.uk 0141 849 4 Process of nursing – co-ordinator – Barbara Killoran Barbara.killoran@uws.ac.uk 0141 849 4282 Year 2 Timetable Trimester 1 - Week 1 September 11 cohort Date | 9am-12.00pm | Lunch | 1.00pm-4.00pm | Mon CAPS17/09/12 | M004 amp; F309 9-10am Intro to module J.WhiteRead MoreWhy I Am An Engineer907 Words   |  4 Pages1. Choosing to be an Engineer was one of the easiest choices I’ve had to make in my life. 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Ferrera Essay Example For Students

Ferrera Essay Who is the Duke of Ferrara?It is more difficult for some to mask their personality traits than others. Even though the Duke of Ferrara, in My Last Duchess, a poem by Robert Browning, attempted to conceal his traits he could still be seen through. In the midst of a party, the duke steps aside for the negotiation of an alliance. The more the duke aims to cover his traits the more apparent they became. The duke did not intend for his arrogance to be shown as much as it was. The poem had an arrogant tone. He made a point to put emphasis on himself or I. The extra comment since none puts by the curtain I have drawn for you, but I was not required. He felt the gift of a nine-hundred-years-old name should not be equal to lesser gifts from others. The one trait that was the most apparent was his possessiveness. The first line sums it up with, Thats my last Duchess painted on the wall. It would have been just as simple to say, look at the painting on the wall. As they are returning to the party the duke is sure to point out more of his expensive artwork. The first thought of his shrewdness is the whereabouts of his last duchess. He never mentions her location. Questions of her death, banishment, or incarceration come to mind. When the duke could not handle the smiles anymore, he ordered them to cease. The smiles stopped. All the effort put into hiding his personality was useless. He was transparent. No matter how much energy is put into hiding ones personality, the true person will always be seen.

Liquidity and Profitability Business Management †MyAssignmenthelp.com

Question: Discuss about the Liquidity and Profitability Business Management. Answer: Introduction In the given case, there is a sole proprietorship business at Kota Kinabalu area. The business is dealing in the groceries item. As an owner, different business requirements and the source of business is required. The bried description of the business, its products/services, location/address has been given. Besides that, the manpower it employs and the detailed source and types of documentation that is required in cost of goods sold, sales, payment and receipts have been shown. A detailed report of these have been given below(Alexander, 2016). The name of the grocery store will be A Z Grocery Store and the main reason for selecting such a name for the business is that all the types of the grocery material would be available at the store be it food material or fruits or vegetables. It also consists of frozen food, stationery, bakery items, health and beauty products, beer, wine and liquor, baby care products, dried food items, cosmetics, diet foods, etc(Goldmann, 2016). The business is located in Kota Kinabalu area of Malaysia. It is the capital of Sabah state which is the northern part of Borneo Island. The shop is situated in the middle of the market which is assessible to the people residing all around the city. The shop is open 6 days a week from Thursday to Tuesday and half a day on Wednesday. Full address of the shop is mentioned below: Payment to workers: Documentation There are 2 workers who are being employed in the shop. They are being paid RM 1200 per month towards the end of every month. The main documentation which is required at the point of time of payment of salaries is the Salary slip, the format of which is mentioned below. Besides this, all the details pertaining to a particular employee is already being maintained in the master file as to the no. of days of attendance, the salary package, the family details, the identity card, etc. The payment is done through cash or bank as per the convenience. There are various types of transactions which happen during the course of the business. Some of these are cash or credit prurchases, return outwards and inwards, carriage inwards and outwards, insurance, cash and credit sales, payment to creditors and other 3rd party vendors, receipts from the debtors and revenue recognition. There are numerous other transactions which cannot be limited to a fixed number. The documentation required for the following mainly include the invoices for sale to customers, credit and debit notes, bills for all the types of expenses, payment voucher for vendors, bill of entry in the of imports and exports, etc. Some of these are shown below. The month which has been considered here for the purpose of the documentation is March. References Alexander, F. (2016). The Changing Face of Accountability. The Journal of Higher Education, 71(4), 411-431. Goldmann, K. (2016). Financial Liquidity and Profitability Management in Practice of Polish Business. Financial Environment and Business Development, 4, 103-112. Retrieved from https://doi.org/10.1007/978-3-319-39919-5_9