Contact Essay -- essays research papers

b) Why are astronomers using radio telescopes looking for far stars instead of a telescope? First of all, what is a radio telescope? The first non-visual spectral region that was used extensively for astronomical observations was the radio frequency band. Telescopes observing at these wavelengths are commonly called radio telescopes. Radio telescopes may be made much larger than optical/infrared telescopes because the wavelengths of radio waves are much longer than wavelengths of optical light. A rule of thumb is that the reflecting surface must not have irregularities larger than about 1/5 the wavelength of light that is being focused. By that criterion a radio telescope is several hundred thousand times easier to figure than an optical telescope of the same size In the movie "Contact," astronomer Ellie Arroway, played by actress Jodie Foster, searches for signs of extraterrestrial life using massive, Earth-bound radio telescopes. Much of Contact's scientific intrigue, based on Carl Sagan's 1985 bestseller, unfolds at two National Science Foundation-supported radio astronomy facilities where real-life astronomical mysteries continue to be probed. Scientists use the government-supported telescopes to detect radio waves not from distant civilizations but from planets, stars, galaxies and other objects in space. Radio observations extend astronomers' reach into space and time, letting them "see" through gas and dust in space to detect celestial objects whose visible light cannot be seen from Earth. In "Contact," Foster hears the first guttural, throbbing message transmitted by other-worldly life using the world's most powerful radio telescope, the Very Large Array in Socorro, New Mexico, a collection of 27 antennas spread in a three-armed configuration across the desert. NSF’s National Radio Astronomy Observatory runs the huge dishes, which Foster manipulates in the film from her laptop computer like a high-tech, movable Stonehenge, in reality. Electronically linked to simulate a single radio telescope up to 20 miles in diameter, the antennas can be bunched together or moved apart along railroad tracks into different configurations. About 700 astronomers visit the VLA each year to observe the universe. In "Contact," Foster gets her scientific start at another NSF-supported facility, the... ... fastest moving man made objects in the process. If those same probes were to be launched to the stars, however, they would take thousands of years to reach them! The distances to the stars are huge So huge, in fact, that the light from the nearest star to the Sun, a triple star system known as Alpha, Beta and Proxima Centauri, takes over four and a quarter years to get here. Since, according to special relativity, nothing in the universe can travel faster than the speed of light, it would seem that travel times with even the most advanced starships are going to be extremely long indeed. There are also highly exotic ideas, which lie on the tantalizing fringes of modern theoretical physics. If the universe is a multidimensional place with human beings only able to perceive three dimensions, perhaps a way can be found to shortcut through the 'higher' dimensions. These so-called wormholes are currently having their mathematics calculated by the theorists but if they can be utilized for travel then perhaps the entire universe will become accessible to us. Traveling to different planets may take no more time than traveling to different countries does now!

Importance of Sleep in Shakespeares Macbeth :: GCSE English Literature Coursework

Sleep in Macbeth It is natural to want to sleep after working hard. If something goes wrong or if the conscience feels guilt, the body will not let the person rest. The conscience keeps the person awake to think about his sins and keep torturing him until he confesses. In the play Macbeth, William Shakespeare uses images of sleep to show the guilt of Macbeth's and Lady Macbeth's conscious. When the idea of the first murder enters their heads, things begin to go wrong. They no longer have the natural healthy, normal sleep. Their sleep is made up of nightmares and other disturbances. Only the admission of guilt or death can save them. Strange things begin happening in Macbeth's mind when he decides to go through with the murder of Duncan. He sees the image of the dagger floating in front of him(53). This is his inner thoughts warning him on how unnatural this act is. When he goes to Duncan's chamber, he hears warnings from his conscious. "Sleep no more!/Macbeth doth murdered sleep"- the innocent sleep."(57) This is Macbeth's first evil act. At this point he still hears the warnings. As he gets further into the darkness, all the other voices disappear. Instead he is haunted by evil dreams, images, and premonitions. Lady Macbeth is also warned of the trouble that is to come from this. When she goes to Duncan's chamber, she sees the image of her father, warning her not to murder Duncan. She strips herself of all good to gather the strength to go through with the act. Both Macbeth and Lady Macbeth give up their souls in pursuit of the kingship. It is this obvious disregard for the warnings by the conscience of the los s of innocence that causes them to be haunted by it later in the play. The great loss is the natural sleep. Sleep is the reward of the day. Because Macbeth and Lady Macbeth give up their innocence, they lose the good sleep. "Nature seems dead, and wicked dreams abuse the curtained sleep(53)." "You lack the season of all natures, sleep," says Lady Macbeth to Macbeth(109). Their sleep is no longer natural. It is forced by them. Their conscience will no longer let them rest. It wants them to suffer for their sins. The doctor observes, "A great perturbation in nature, to receive at/ once the benefit of sleep and do the effects of watching(161).

Bba Application Essay

Community is where one finds a place to belong and a purpose to pursue. It can mean the difference between soaring with greatness or simply floating along. It is where leaders find their passion to shine and their reasons to thrive. The Emory Concert Choir community is no different, and it is where I have found my own passion and purpose to grow and thrive. The Emory Concert Choir is a family of diverse individuals who join together to fill each other’s lives up with song and laughter. It is where each of us has found our identity and expresses our passion for music.Each precious breath that escapes between our lips echoes through the concert hall and is filled with our pride and joy. However, music is not a treasure to be guarded from others, but is instead a food for the soul that should overflow. Therefore, I have thusly devoted myself to let our music be known to the Emory community as our Publicity Chair. In order to increase our campus awareness and allow a larger number of students to enjoy our concerts, I have started a number of initiatives since being appointed.During my freshman year, I noticed a lot of listeners came up after our concerts to express their gratitude. Many claimed to have been overwhelmed with joy and loved the beautiful sounds. Yet, many of these faces were not seen during the following concert. I realized that the problem lies within the lack communication of information; many simply did not know the date of our next concert. In order to increase communication, I began collecting email lists after each concert for those who wished to be informed of our future concerts.Furthermore, our new YouTube pages and Facebook pages will now allow us to utilize social media to engage with the Emory community. These new tools will help us keep the Emory community informed of all our future ventures. However, awareness does not end with simply communicating information. It is equally important to develop and maintain an image and identity of our Choir as a whole. Just as a company advertises its brand image, we too plan on promoting our choir’s image.During the academic year of 2012-2013, one of my largest initiatives is to identify the key characteristics of our choir, and create a campaign to promote that image. We have already begun designing apparel for the choir and revamping our website. The efforts made here will help shape Concert Choir’s place in the Emory community for the years to come. Over the past year, Emory Concert Choir has transformed from a group of singing strangers, to a family of friends supporting a common goal. I now know my role in improving our Concert Choir family and I know I have the capacity to achieve such greatness.

Costs of residential photovoltaic solar electricity Essay

Abstract Now a day’s electricity is more important concern. We use a lot of home appliances which is operated by electricity but electricity we use; it is costly and not available every where. As we know sun is the source of energy, the energy which provided by the sun, less in cost, mostly available every where in abundance.  Ã‚   Where electricity is not available in that case electricity generation by using solar energy can solve our problem but the main problem is that before apply such a technique, we familiar with installation cost, its limitation, uses etc. In this paper I want to focus our attention Costs of residential photovoltaic solar electricity with battery storage and its installation. Costs of residential photovoltaic solar electricity with battery storage   Sun is the most imp energy source of energy. Energy which is finding from sun is almost free of cost, pollution free and most abundant in nature. The generation of electricity from solar energy is one of the best uses of unconventional energy resources. We can generate electricity from solar energy by two ways one by used to photovoltaic technologies other by used to solar thermal technologies. Photovoltaic cell is the most important means for electricity generation; we use photovoltaic generated power because it is very reliable, low operating and construction cost and pollution free, so its use increases day by day. There are around thirties different devices used now a days. We store this electrical energy in the battery bank. There are around 400,000-800,000 photovoltaic systems operating worldwide its typical size varies from 50 watt to 1 kilowatt (kW) for stand-alone systems with battery storage and small water pumping systems; its cost varies according to use of photovoltaic panel, the average cost of approximately US$4 per watt. Its approx cost for 5000/kw photovoltaic module is $2600 and for photovoltaic system approx 7000/kw is $4700.to accurate measurement of the cost it is necessary we compare it from other energy resources with all aspects. We use photovoltaic module less than 10kw and it is increases according to use. In the beginning the installation cost is much but if we compare it from other resources it is cheaper to use as in the village where no electricity or it may have, the photovoltaic technology provide direct electricity.   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   So the electricity generation by photovoltaic solar panel is cheaper than other electricity generation if we compare it for all aspects.   References:   Gupta, D., Mishra, V. (2005) Energy Ecology, Environment and Society. India.    Joshi, J.C., (2007-08) Research and Development. India. Hurricane, G., (2007-08) PV- An edge over other energy forms, article on PV.

Economic Equilibrium Essay

In economic equilibrium, quantity demanded and quantity supplied are equal. For example, the amount of goods or serivices set by buyers is equal to the amount of goods or services produced by sellers. This is what we call as equilibrium price and this will definitely not change unless demand or supply changes. Based on the lecture, due to scarcity we sometimes consider trade-offs. For example as what was stated in the lecture, supposedly that you have only six hours left to study for your test in economics and to complete your assignment in graphic design, you have to balance your time or spend more time in either economics or graphic design. You also have to consider the resources that you can maximize in accomplishing both things. Having a fixed quantity and quality of available resources means that you have a fixed supply of materials such as textbooks, notes, design software, etc. , to use in the time you have left. Scarcity triggers the society to make choices and that’s why there are trade-offs. I agree that economic equilibrium is the state wherein you don’t get any benefits at all in making trade-offs because there is no tendency to change or you alreay chose the best possible alternative which means that you have maximized already your limited resources. Reference Economics Basics: Demand and Supply. ( 2010 ). Retrieved July 15, 2010 from

Fine Art Critique Paper

Germaine Armstrong Professor Hale MU2313 Critique Paper When I went home last weekend I attempted to go to the Arlington Museum of Art. Unfortunately the museum was closed due to the fact that they where changing exhibits and would not reopen until the following week. I returned back to San Marcos and decided I would go to The Wittliff Collections here on campus. To my surprise it was a lot bigger than I thought it would be. Being on just one floor of a building I thought it would be a pretty limited museum but it is way bigger than expected. There are four exhibits on display in the museum.One is a permanent display in the museum. There are also a couple of smaller displays in an area in the museum. I couldn’t take any pictures in the museum due to the many signs up saying not to. The exhibit that is on permanent display is The Lonesome Dove Collection. Arguably the greatest western made is based on the Larry McMurtry’s Pulitzer Prize-winning novel. On display there ar e many things from scripts from the TV show to trail maps used to show the geography of the land on the show. The collection is pretty amazing to me and I am not really a fan of lonesome dove.There are so many small details of the show that you get to see. It really catches your attention. You get to see so many of the props from guns to the saddles they used on horses. Though this is the only permanent exhibit the other exhibits are equally as great. Another Exhibit on display is called Face to Face Portraits. This exhibit shows the work of over 30 photographers. From photos that included Willie Nelson and Texas State alumni George Strait to homeless men, women, and children from across the world. Two pieces from this exhibit really caught my attention.One of the pictures I found very interesting being that of an older gentlemen sitting in a chair that I thought to be pretty unique. The chair he is sitting in caught my eye as soon as I looked at the photo. The arms of the chair hav e been carved to look like the head of a cougar, with the legs the chair being cougar legs. The wood of the chair has many different shades of color. The man sitting in the chair is actually dressed cleanly but you can clearly see that he is a man of lower class. He has on old sneakers and looks like he is out in the sun for a good majority of his time.This one photograph made me ask myself many questions such as â€Å"is he wealthy or poor? † and â€Å"is that his chair or just used for the picture? † or maybe â€Å"did he make the chair and wants to sell it? † The photo really made me think more than any other in exhibit. The other photo or photos in the exhibit that caught my eye were those of Willie Nelson. He had several photos as well as other notable things such as one of his songbooks on display. Nelson had his very on little display case of many notable pictures and accomplishments of his. The reason I really like this is because I am a fan of Willieâ⠂¬â„¢s music.Not only am I a fan but also Willie actually owned a gas station and a house not even ten miles away from where I grew up. So I have gone and seen many notable things that have happened in his career as he put many things on display in his gas station. The most unique thing in the display was a songbook that Willie Nelson wrote when he was ten years old. Seeing more of his accomplishments was awesome. A third exhibit was Global Odyssey: From Texas to the world and back. It showcased many stories of Texas writers as they traveled the world. There are stories form men who severed in Vietnam.This was my least favorite exhibit of any not to say it was a bad one but it just did not catch my attention like the other exhibits. The final exhibit was Las Sombras The Shadows. This exhibit I thought was the coolest of them all. The Photograms by Kate Breakey are amazing. This was my most favorite because I am an animal lover. Many of the photos captured wild animals in their natur al environment. There are several rooms with pictures from this exhibit. One room had most of my attention. The room was all pictures taken from a video that was filmed by a camera left in the woods.Other photos where actually like the outline of many animals. The most intriguing photo to me was a picture of a wolf. The Wolf is actually walking right toward the camera and looking directly in to the lens with its head tilted a little to one side. I like this photo because it shows the wolf checking out its surroundings and actually examining something odd. It looks as if the wolf knows that the camera is not suppose to be there. In all the other photos the animals are either running or walking right by the camera. I am actually glad I went to the museum on campus and it’s the museum I choose to write about.If I did not have to do this critique and the museum in Arlington was not closed I probably would have never visited the museum on campus. Having went I really enjoyed mysel f. I thought it was worth every minute of my time and I could see myself visiting it many more times before I am don at Texas State. I went to the Bass Performance Hall in Fort Worth Texas to watch the Fort Worth Symphony Orchestra. I was sitting pretty high up but still had a great seat and could hear perfectly. Before going to watch the performance I read a couple of reviews online.Most of the reviews praised the orchestra for there performance in concerts earlier this year. The concert I attended would include pieces from three composers John B Hedges, Schumann, and Rimsky-Korsakov. I arrived to the concert pretty early and after I walked around for a little bit I found my seat, which turned out to be way better than, I expected when I first got there. When I first got to my seat I could see the stage fine but thought I might not be able to hear very well being so high up. Boy was I wrong when the members of the orchestra began to warm up I could hear everything crystal clear.Hav ing never being at one of these big concerts before I found it weird how everyone warmed up separately. With them warming up like that it sounded like a bunch of senseless noise. As it got closer to show time the senseless noise became certain people warming up together to whole sections warming up together and was pretty cool. The concert started out with a piece by John B Hedges called Slapdance. This piece of music was filled with a lot of life and energy. One of the reasons I really enjoyed this piece was because of the many percussion instruments used.I was in my high school band and my favorite pieces would always be the fast paced exciting music filled with percussion. This piece had me on the edge of my seat and really excited for the rest of the concert. The piece following Slapdance was a piece by Schumann by the name of Cello Concerto in A Minor, Op. 129. This piece though not as exciting as the first piece was pretty good. It started out slow but it picked up as the song continued. This piece had a solo for a cello. The solo was played by a guest cellist Alban Gerhardt which I learned later is considered one of the great cellist of our time.Though this was my least favorite piece it was not because I did not like it but because I really liked the other two more. After the first two pieces there was an intermission. Most people got up and left the performance room but I stayed just to observe and see what the orchestra would be doing. To my surprise many of them got up and went backstage but a few of them stayed on the stage and seemed to practice he up coming piece. Seeing professional musicians stay on stage and continue to practice up to right before they played was pretty cool to see. After the 15 minute intermission every on returned to their seats.The entire orchestra came back to the stage for the final piece Scheherazade, Op. 35 written by Nikolay Rimsky-Korsakov. Being the final piece it was the longest of the three selections. I really enj oyed this piece because it had many parts some parts where very slow but it had plenty of exciting parts. This piece actually tells many Indian-Arabian tales called A Thousand and One Nights. This piece even though written hundreds of years later is as well known as the stories. The performance hall where the concert was held was an amazing place to see. When I first arrived and saw the building I thought â€Å"this is the building. Not knowing that I actually wasn’t at the front of the building but the side. Once I got inside everything was extremely incredible. The building didn’t look nearly as large from the outside. When I walked into where the performance would be held I was in awe. The stage was set down at the bottom from where I was with four different levels of seats. Having never been to a place like it I thought it would be awesome to play music in a place like that. The Bass Performance is an amazing place. By attending this classical music concert I lear ned that I could actually enjoy this type of music.The cost for the concert was actually pretty cheap and the seat I had I think was pretty good. I feel like the concert was worth my money and my time. My high school football coach use to always tell me that going outside your comfort zone makes you broaden your mind on what you think is good and bad. Before going to the concert I would have never thought that I would enjoy the music as much as I did. Even though I enjoyed it I probably will not go to another one just to go. After going and my brother and I being the only two younger people there it felt a little uncomfortable.It is something I could see myself going to when I get older. For right now though I would rather go to something with more excitement and people my age. Picking a movie to critique for this paper was a lot harder than I thought it would be. I could not decide if I wanted to pick a movie I had never seen or one I have seen many times. Did I want to pick a movi e that I liked or one that I hated? I decide that I would pick a movie I did not like to see if me critiquing the movie would change how I viewed it or would my opinion stay the same.The movie I choose to critique was the movie Clueless written and directed by Amy Heckerling. The movie is based on a very popular girl in high school who along with her best friend helps the new nerdy kid that arrives at their school to fit in. By changing how the new kid dresses, talks, and trying to get her a boyfriend. Cher Horowitz the main character of the movie is at the top of her schools social scene. Her father is a rich lawyer so she has everything she has ever wanted. Going to high school in Beverly Hills she is obsessed with her fashion.She likes to think she is just as normal as a regular girl but has a closet that puts her outfits together. She is the typical example of â€Å"daddy’s little girl†. Even when given rules to follow she somehow always manages to find a loophole and does what she wants. She is your typical â€Å"brat†. The one thing she cannot seem to get is a boy. The movie is told from Cher’s point of view as she tries to help friends and ultimately help herself before the movie ends. Cher’s best friend is Dionne. Dionne understands Cher because she faces all the same popular girl problems.Dionne helps Cher with her fashion and trying to give the new kid a makeover. At first Cher is against Dionne and her boyfriend’s relationship but after a near accident Cher realizes that the two are in love and ends up envying their relationship. Tai Frasier is the ugly unpopular nerd that transfers to Cher and Dionne’s school. As soon as she arrives Cher makes it a point of hers to transfer the goofy nerd into one of the popular girls. Dionne is uneasy with the idea at first but Cher uses her charming ways to convince her to do it. Tai immediately falls behind Cher and Dionne and listens to everything the two says.Sh e is attracted to an unpopular boy but ignores him because Cher and Dionne says she should be dating one of the most popular boys at school. Mel Horowitz is the father of Cher. He is a very successful litigator who pays more attention to his work than to his daughter. He tries to discipline Cher throughout the movie but she manages to always find a way to get off easy. Josh Lucas is Cher’s ex-stepbrother. Her father used to be married to Josh’s mother. Josh has ambitions to be a lawyer and tries to learn many things from Mel. Josh and Cher flirt throughout the movie but when she sees josh and Tai flirting she becomes jealous.However Josh and Cher ends up falling for each other at the very end of the movie. When Cher realizes she cannot connect with any other boy because she loves him. Christian Stovitz is one of Cher’s main love interests in the movie until she finds out that he is gay. Christian arrives at midway trough the school year and immediately gets Cher ’s attention. She goes out with him several times and even tries to seduce him. When it does not work she thinks it as something to with herself. After complaining about it to Dionne and her boyfriend Cher is told he is gay and she now understands him more.Throughout the film Cher refers to herself as clueless many times. Even though she had many answers for others problems she often found herself clueless to her own. She helps many of her friends with fashion and boys. She is not able to get any boy she wants. She becomes aware of this and becomes depressed. Shopping helps her depression for a little while but she still finds herself down. She finally overcomes her depression when admits to herself that she loves Josh. After reading reviews on this movie it was actually a pretty big hit in 1995. The movie was much more popular than most expected.It is still a very popular movie because many girls can relate to the things that happen in it. This movie is not based on a true s tory but the events that happen I am sure are possible. Even though I went to a small high school I have seen many girls freak out over many silly things. All of the things Cher goes through sounds like typical girl problems. After seeing this movie several times and now critiquing it I still think that it is overly hyped and I do not think it is a movie I would watch just to watch. There would have to be a reason I would watch it. I think my opinion is like this because I cannot relate to the movie.

The Microsoft Case Assignment Example | Topics and Well Written Essays - 500 words

The Microsoft Case - Assignment Example Market barriers influence the players in the market. Microsoft case developed an operating system that could not be used by other firms. Attempts by other firms to develop a system that would substitute products for Microsoft have been futile. This has limited the players in the market. Microsoft uses the market barrier to safeguard the profit of the corporation. The natural monopoly occurs when the startup cost for a particular business is quite high. The high start-up cost will lock firms or individuals from venturing into a specific line of business. The government may come in to regulate cases of natural monopoly because it aims at protecting its consumers. Natural monopoly may lead to deadweight loss to society. The case of Microsoft cooperation is not the natural monopoly because many firms are willing to get into the market but Microsoft has consistently produced operating systems that have made it difficult for the firms to penetrate the market. Â  A government monopoly is a case where cooperation owned by the government supplies the product in the market without competition. The demand curve slopes downward because of the relationship between quantity demanded and price of the products. Demand increases with a decrease in prices. Microsoft enjoys economies of scale due to the expansion it makes into the market. The price setting power lies in the hands of the firm that enjoys the monopoly. In this case, Microsoft enjoys monopoly pricing. When firms are in competition, market forces would act as the price marker. In conclusion, monopoly creates incomplete competition in the market.