Ebay essays

Ebay essays I have recently joined the millions who have visited Echo Bay. It is a busy place with millions of goods, and billions of dollars flowing through it. It is divided into communities, some of which are really tight knit. People come from all over the world to take part in it. It is filled with rare, exotic, and just plain weird stuff. The place Im talking about is more commonly known as eBay. There are millions of items on the web for sale, and just as many people waiting to buy them. Ill explain the basics about how to get started, and some hints on how to sell. EBay has only been a company for nine years, but it has a lot of history for that short amount of time. It is a great way to turn that junk pile in your garage into cash. Getting started on eBay is very simple. Go to a computer and type in www.ebay.com. On the main homepage go to the top, and click on the link that says sell. Follow the simple step-by-step process where it instructs you to put in your personal information. A credit or debit card makes the process simple, but it is possible to sign up without one. You will need an e-mail address as well, and to complete the process you will have to put in a code that they will e-mail to you. After the brief form is complete you are able to list what you want to sell. (eBay Inc.)The entire process from opening the page to having an item listed takes approximately half an hour, and anyone with basic computer skills shouldnt have any trouble. You can include a fairly lengthy description and one picture for the listing price of $.50. To add more features will cost extra. You can add templates, more pictures, and choose where your ad appears for more money. It cost me $.85 total to list a pair of ice ska tes, and an additional small percentage will be added after it is sold, depending on the final cost. You can sell anything over eBay. Well, almost. For logical and legal reasons you cant sel...

James A. Van Allen Biography

James A. Van Allen Biography You cant see it or feel it, but more than a thousand miles above Earths surface, theres a region of charged particles that protects our atmosphere from destruction by the solar wind and cosmic rays. Its called the Van Allen belt, named for the man who discovered it.   Meet the Belt Man Dr. James A. Van Allen was an astrophysicist best known for his work on the physics of the magnetic field that surrounds our planet. He was particularly interested in its interactions with the solar wind, which is a stream of charged particles flowing from the Sun. (When it slams into our atmosphere, it causes a phenomenon called space weather). His discovery of radiation regions high above Earth followed up on an idea held by other scientists that charged particles could be trapped in the uppermost part of our atmosphere.  Van Allen worked on Explorer 1, the first U.S. artificial satellite to be placed in orbit, and this spacecraft revealed the secrets of Earths magnetosphere. That included the existence of the belts of charged particles that bear his name.   James Van Allen was born in Mount Pleasant, Iowa on September 7, 1914. He attended Iowa Wesleyan College where he received his Bachelor of Science degree. He went on to the University of Iowa and worked on a degree in solid state physics, and took a Ph.D. in nuclear physics in 1939. Wartime Physics Following school, Van Allen accepted employment with the Department of Terrestrial Magnetism at the Carnegie Institution of Washington, where he studied photodisintegration.Thats a process where a high-energy photon (or packet) of light is absorbed by an atomic nucleus. The nucleus then splits to form lighter elements, and releases a neutron, or a proton or an alpha particle. In astronomy, this process occurs inside certain types of supernovae.   In April 1942, Van Allen joined the Applied Physics Laboratory (APL) at Johns Hopkins University where he worked to develop a rugged vacuum tube and did research on proximity fuzes (used in explosives and bombs). Later in 1942, he entered the Navy, serving in the South Pacific Fleet as an assistant gunnery officer to field test and complete operational requirements for the proximity fuzes. Post-War Research   After the war, Van Allen returned to civilian life and worked in high altitude research. He worked at the Applied Physics Laboratory, where he organized and directed a team to conduct high-altitude experiments. They used V-2 rockets captured from the Germans.   In 1951, James Van Allen became head of the physics department at the University of Iowa. A few years later, his  career took an important turn when he and several other American scientists developed proposals for the launch of a scientific satellite. It was to be part of the research program conducted during the International Geophysical Year (IGY) of 1957-1958. From Earth to the Magnetosphere After the success of the Soviet Unions Sputnik 1 launch in 1957, Van Allen ¹s Explorer spacecraft was approved for launch on a Redstone rocket. It flew on January 31, 1958, and returned enormously important scientific data about the radiation belts circling the Earth. Van Allen became a celebrity due to the success of that mission, and he went on to achieve other important scientific projects in space. In one way or another, Van Allen was involved in the first four Explorer probes, the first Pioneers, several Mariner efforts, and an orbiting geophysical observatory. James A. Van Allen retired from the University of Iowa in 1985 to become Carver Professor of Physics, Emeritus, after having served as the head of the Department of Physics and Astronomy from 1951. He died of heart failure at the University of Iowa Hospitals and Clinics in Iowa City on August 9, 2006. In honor of his work, NASA named two radiation belt storm probes after him. The Van Allen Probes were launched in 2012 and have been studying the Van Allen Belts and near-Earth space. Their data is helping the design of spacecraft that can better withstand trips through this high-energy region of Earths magnetosphere.   Edited and revised by Carolyn Collins Petersen