Many cosmologists believe that the universe was created 15 billion years ago with the “big bang” a huge cosmic explosion that lead to an expanding of clouds of the two elements, gases hydrogen and helium. Since there were no other elements at the time anywhere there were dense knots containing higher concentrations of gases, the mutual gravitational attractions of gas molecules led to the birth of the first-generation stars. Over time as more and more material fell into a new star, the pressure at its center finally became adequately large to start the process of nuclear fusion, wherein the nuclei of hydrogen and helium combine to form heavier elements. It was convoyed by the release of energy, which made the star begin to shine and halt …show more content…
Most stars are born within the arms of a spiral galaxy where there is more gas and dust. Sometimes, numerous stars can form within the same molecular cloud, and we have what is identified as a star cluster. There are two types of clusters; Open cluster, which have a tendency to contain a few hundred fairly young, hot stars, that quite spaced out, and globular clusters, that also have about thousands of much older stars, more densely crowded together.
The life of a low-mass star like the sun for example have fusion of protons into helium in the stars center generates heat and pressure that can care the weight of the star. The sun is mainly made of hydrogen (1 proton+ 1 electron) when it was born and it happened to have enough hydrogen to last like this for roughly 15 billion years. When it starts to run out of hydrogen in the center, not enough heat and pressure is generated to balance the weight of the stars, so the core of the star slowly begins to collapse. As the core beings to collapse it gets hotter, however no extra heat has been made because it compresses. It gets so hot that light from the core causes the outer parts of the stars to increase and get less dense, so the star looks cooler from the outside. The star is becoming a red giant. Finally, the core gets so hot that it’s possible for helium to fuse into carbon and oxygen. Extra heat and pressure are once again generated and the core stops collapsing; its
Within the universe, clusters of matter combined into galaxies of planets, stars, and space rocks. The galaxies were created in the beginning of time.
The Ku Klux Klan originated in the South and spread across the nation; during the early twentieth century, the KKK had approximately four million members throughout the country. Their members occupied many political influences in some states such as Oregon, Indiana, and Colorado. In the summer of 1868, Klan achieved part of their goal which was to defeat Southern Blacks; but didn’t succeed that well in carrying out their social aim during the reconstruction era, however; they later spread throughout Georgia. Then again, a Georgia Republican organizer was killed on March 31st, 1868; and because of his death, KKK organized terrorist crime became noticeable; to the extent that their violent actions spread across Georgia’s Black Belt, and the state
Although the pigs in this novel are terrible creatures who do terrible things, they are unfortunately very, very smart. These pigs are power hungry, and they will do anything that it takes to maintain their power. But, to maintain power, the pigs must first gain power. The pigs use education as a way to gain power. After the rebellion in the beginning of the novel, the pigs find books that teach them to read in the farm house. The pigs, being the power hungry animals that they are, teach themselves how to read and write. They know that they are much smarter than all of the other animals on the farm. Since the other animals could not learn how to read or write, the pigs used this as leverage to get power. Because they are the only animals that could read or write, they were quickly thought of as leaders and much
Leonardo di ser Piero da Vinci (or put simply, Leonardo da Vinci) was born on April 15, 1452, in a small town called Anchiano in Italy to Piero Fruosino di Antonio da Vinci and Caterina da Vinci out of wedlock and died May 2, 1519 in Clos Lucé, Amboise, France. Known as the “Renaissance Man”, da Vinci was an Italian mathematician, artist, scientist, and inventor. He had numerous paintings such as the “Mona Lisa”, “The Last Supper”, “The Virgin on the Rocks”, and “St. John the Baptist”, but his two best known works are the “Mona Lisa” and “The Last Supper.” The man of many talents did not grow up with a silver spoon in his mouth like the Medici family he would later work for as an apprentice.
Stars are born, grow old, and die, at rates that are related to their mass and any external pressures acting on them, similar to the life-cycle of all living things in the universe. The process in which stars change dramatically throughout their existence is called stellar evolution and can take millions to billions of years. Stellar evolution describes how stars transform over time, from birth, through life, which includes growth, and ending in death. Fusion, the force that generates energy, is balanced by the pull of gravity, resulting in the progression and development of the star.
A star is born in a high-density nebula and condenses into gas and dust and contracts under its own gravity. Next, a region of condensing matter will begin to heat up and star to glow, forming protostars. The temperature at this point is 5 million degrees centigrade. When this temperature is reached, hydrogen fuses and forms helium. A star then begins to release energy which causes it to contract and shine. After millions of years, the core of the star which is helium, contracts and a reaction begins to occur in a shell around the core. The core is at a high enough temperature for helium to form into carbon and the out layer of the star expands, cools and becomes less bright. The core then burns out and the outer layer leaves the core as a gaseous shell. The rest of the core cools and becomes a white dwarf and is less bright. When the white dwarf stops shining, it is called a black dwarf.
The transportation of energy from the core of the protostar to the visible surface layer of the star begins in a circular motion (as a gas). As a result, this stage connects the gas temperature inside the protostar to the gas density-this enables it to have a polytropic structure. As a protostar emits, it shrinks in scope to produce the energy that replaces the discharged energy. This shrinkage increases both the self-gravity and pressure at the protostar’s core correspondingly. This balance produces a connection between the temperature of the protostar and the gravitational resistance of the star. Eventually, as the radius of the star shrinks, the temperature will surge to the factor that it reduces, thus, its density will further increase. However, the visible layer of the star doesn’t become affected in terms of increase in temperature because its location is set by the skill of light to spontaneously escape from it. Thence, the protostar begins to become more opaque, less luminous, and as an outcome the radiation of light decreases. It takes a long time for the star to reach its main sequence because the decreasing luminosity and the increasing thermal energy cause the rate of shrinkage to slow dramatically. Therefore, the protostar begins its brief life as a charismatic star that diminishes in lustre on a timescale of hundreds of years. As years goes by, the
Stars begin their life cycle as molecular clouds. Some event, such as a shockwave or collision of a galaxy, causes the cloud to collapse and form smaller pieces, which collapse inward on itself, and form a protostar. As the star collapses, gravitational energy creates heat, resulting in the rotation of the particles. During this phase of formation,
Low mass stars are exactly what you think. They are the creation of smaller molecular gas clouds and the subsequent protostars. Our very own Sun comes from this family and has relatively low luminosity and temperature. Thankfully, the smaller a star is the less fuel it needs to consume. This means that it will also have a longer lifetime before exhausting it energy supply in the core. But, once it has eaten though all of its gas the star will grow redder, larger, and more luminous (NASA).If we continue to track the life of a star like our Sun, we can see that next
Stars are born of gas and dust and have a life cycle based on their original mass. The sun produces energy and turns it into hydrogen into helium. Our sun is a bright yellow star and is made of mostly of hydrogen and helium. The size of the sun is a medium size star in the main sequence. The life cycle of a star is the low-mass (main sequence), medium-mass (giant,and white dwarf) , and High-mass ( supergiant, supernova, and black hole. There are three types of galaxies which are elliptical galaxies, spiral galaxies, and irregular galaxies. We classify stars by their size, color, temperature, and their luminosity. When a star dies it becomes a black hole until millions of years. The hottest star is the blue star the coldest star is the red star.
Since my entire thesis for this paper is about how a star is born, I guess the first thing I should start out with is by telling you exactly what a star is. Stars are self-luminous gaseous spheres. They shine by generating their own energy and radiating it off into space. The stars' fuel for energy generation is the stuff they are made of --hydrogen, helium, carbon, etc. -- which they burn by converting these elements into heavier elements. Nuclear fusion occurs, which is when the nuclei of atoms fuse into nuclei of heavier atoms.
Stars go through tremendous things in the course of their life. In a star’s life they go through eight different phases. These phases can take many years to go through. When a star is made up it starts needing. Gas and dust in space to form what is called a nebula. Nebulae are the birthplace of stars. There are different types of nebulas one being an emission nebula. For example the Orion Nebula grows very brightly because of the gas that is in it which is energized by the stars that have formed inside of it (“Life of a Star”). Another type of nebula is a reflection nebula this is when starlight reflects off the greens of dust that are in a nebula. The last type of nebula is a dark nebula, these are very dense clouds of molecular hydrogen that can either partially or completely absorbed light from stars.
A star is a sparkling bundle of gas bound by gravity into a solitary object and is fueled by atomic combination at the center. There are trillions of stars in our universe and all are distinctive and extraordinary. Their mass, color, shape makes them all distinctive but mass is the only thing that makes them unique. There are numerous phases of stars life including main sequence stars, red giants, white dwarfs, neutron stars, and dark holes. All stars additionally have a lot of varieties in each one phase of life. The life of a star starts in a cloud, an incredible gathering of gas and dust. When enough mass has aggregated into a solitary item, gravity compels the mass to crumple into the middle. Because of weight and rubbing, the center gets so hot that it starts atomic combination and a protostar is made.
wanting to send folders and multiple documents this method can become time consuming and ultimately inefficient. There is an option to zip files when emailing however this only compresses files to a point, some are still too big. An alternate way to saving on the cloud is using Google Drive, which in reality, most students at John Paul II (or at least in my year) do not have a lot of experience with, so generally do not use it. This would be able to securely store larger files. Since we cannot work on some files within the Google interface it would require the file to be downloaded each time it needs to be updated on a different computer. This is one disadvantage which is inefficient but as Google continues to develop more file types may be editable reducing this problem. Personally I prefer the USB for larger files and transferring files in general. However an issue at our school especially within the main computing room there are issues with USB’s connecting so whenever attempting to transfer data onto the school computer to work on it there is an uncertainty whether it will successfully connect or not. The benefits as mentioned above are the USB can transfer large files and load them quickly when USB is connected. An example of this is when working on the internal assessments for digital media or digital information. When working on these assignments there is often a main folder containing many sub-folders with multiple files contained within them. This type of data
The life (and, sometimes, death) cycle of a star begins when gravity triumphs over heat. This results in a cloud, composed of gasses and minerals, losing balance, and beginning to contract. Balance for the cloud is not restored, until several radical changes have been experienced by the cloud, and have, subsequently, altered the cloud.