This website uses cookies to ensure you have the best experience. Learn more

The Development Of Telescope Essay

1816 words - 8 pages

Throughout human history, civilization was built and developed upon a sense of mystery. In the ancient time, people believed the existence of eternal God, who lived beyond people’s vision in the vastness of dark sky, and developed their own routine upon that. Observed this mysterious sky for centuries, Greek astronomer Ptolemy finally developed a geocentric model in the Second Century A.D in his book Almagest. In his work, Ptolemy made all of his assumptions were purely based on observations. In 1543, a Polish astronomer Nicholaus Copernicus polished a heliocentric model, which again was derived on visual evidences. These revolutionary discoveries took years to complete. As a comparison, ...view middle of the document...

For example, by observing the sunspot, Galileo discovered the rotation of the sun, and conducted that the earth should be rotating on an axis, too. In addition, by discovering four moons of Jupiter, He indeed suspected that the planet could have moons, just like the Earth and the Moon. These visual evidence supported the heliocentric model very well. These observations helped the discovery of new theories and, indeed, the proof of preexisted theories. As these instruments are so helpful to the development of science, scientists were inspired to focus on seeing distant celestial objects and develop observational technologies.

Many important developments of telescope were made throughout this four hundred years, but the true advancement of telescope started in the twentieth century when modern technologies allowed observation to be more efficient. At some points, the scientists invented different methods to capture every possible signal from the vast universe. They mainly focused on visible and invisible waves. These fields were developed separately, but almost simultaneously, in response to the advancement of product-making technologies.

The telescopes that receive visible light from the universe are optical telescopes. The basic principle of these telescopes is to use the refraction and reflection of lens to amplify the distant object. Larger the lens, larger the telescope, thus further away it can see through. Thus, when the glass-making technology got more advanced, people started to build huge observatories. One of the most famous telescope, the Hooker telescope, which remained the biggest optical telescope in the world for thirty years, was built in 1917. This invention was huge back then; its lens took over a year to make, and it was able to observe far deep into the universe. The astronomer Edwin Hubble using this telescope discovered that some objects that people used to identified as nebula was actually galaxies outside the Milky Way: the universe does not entirely composed of the Milky Way as people used to believe; in fact, Milky Way is only a small part of it. While Hubble observed the red-shift of galaxies, he found that the velocity of separation of galaxies from the Earth is proportional to their distance from the Earth. His law of red-shift was remembered as Hubble’s Law, which was important for extragalactic studies. Furthermore, the Hooker was the first telescope that can measure the dimension of a star precisely. Professor Henry Russell used the Hooker to develop a star classifying trend with his partner, Ejnar Hertzsprung, known as HR- diagram. Providing so much information, The Hooker was really an extraordinary telescope.

Nevertheless, with an increasing desire of observing further and increasing light pollution around the Hooker, a bigger telescope was needed. After assisting the installation of Hooker Telescope, Scientist George Ellery Hale decided to build a new observatory. This observatory includes the Hale...

Find Another Essay On The Development Of Telescope

The Development of Rugby Essay

1216 words - 5 pages The Development of Rugby In 2003 when England won the World cup all of a sudden thousands of kids wanted to pick up rugby balls and become the ‘next Jonny Wilkinson’ since then the RFU has taken various methods to try and encourage children to take up rugby. Nationally there is the Zurich Premier League, these are the twelve best teams in the country and compete for honours at home and abroad

The Development of Attachment Essay

1800 words - 7 pages One of the most important factors that affect child development is the relationship of the child with their primary caregiver. This is a tenet of developmental psychology known as attachment theory. John Bowlby, the creator of this theory, wanted to examine how early childhood experiences influence personality development. Attachment theory specifically examines infant’s reactions to being separated from their primary caregiver. Bowlby

The Development of Warfare

1140 words - 5 pages The Development of Warfare The Roman Empire that was created through the exploits of Alexander the Great was too big to manage as one and was split into two east and west empires that mirrored each other politically, but not religiously. The Byzantine Empire, eastern Rome, established its capital at Constantinople in 330 A.D. founded by Constantine and the Orthodox Christianity severed its ties from the Church of Rome.      The Byzantium

The Development of Psychology

1162 words - 5 pages The Development of Psychology Psychology is defined as the scientific study of behavior and the mind. This definition implies three things. The first is that psychology is a science, a field that can be studied through objective methods of observation and experimentation. The second is that it is the study of behavior, animal activity that can be observed and measured. And the third is that it is the study of the mind, the conscious and

The Development of Racism

1332 words - 5 pages The Development of Racism Slavery's twin legacies to the present are the social and economic inferiority it conferred upon blacks and the cultural racism it instilled in whites. Both continue to haunt our society. Therefore, treating slavery's enduring legacy is necessarily controversial. Unlike slavery, racism is not over yet. (Loewen 143) Racism can be defined as "any set of beliefs, which classifies humanity into distinct

The Nature of Development

2436 words - 10 pages the higher influence. While most of the members of these communities acknowledge the fact that both nature and nurture affect development, some believe that only one solely determines certain aspects of life, such as gender. Dr. John Money is one of these people; he believes that gender identity is solely a product of rearing. He advocates that when humans are born, they have a blank psychosexual slate. That is to say that, at birth, individuals

The Development of Monitors

2922 words - 12 pages The Development of Monitors If you want to keep information secret, you have two possible strategies: hide the existence of the information, or make the information unintelligible. Cryptography is the art and science of keeping information secure from unintended audiences, of encrypting it. Conversely, cryptanalysis is the art and science of breaking encoded data. The branch of mathematics encompassing both cryptography and

The Development of Depression

2183 words - 9 pages support can act as a buffer against depression and suggests that high social support can lower the risk of depression in an individual. Similarly, Hall & Marzillier (2009) support this hypothesis and indicate the importance of social context and the effects it has on an individual. This social model therefore challenges the notion of individual pathology and provides an alternative explanation for the development of depression. Beeri & Lev-Wiesel

The Development of Death

1976 words - 8 pages taking the two million dollars. His character is used to deliver action in the story, which aids in the development of death. Chigurh is a hit man who is looking for Moss. He has no sympathy for anyone. Because he kills all that is around him, it is safe to consider him insane. His insanity generates death through the whole novel. All Chigurh wanted was the document case full of money and he was not going to let anything get in his way even

The Development of Writing

875 words - 4 pages his legs for two years, making him unable to consort with other children. This long period of inactivity had permanent effects on his mental development. Despite the negative affects, the disease allowed Williams to discover his love of story telling. Being constricted to his bedroom, Williams entertained himself by using his imagination. He began to imagine elaborate stories (each had different characters, costumes and settings)(Hayman 2

The Development of The Atom

500 words - 2 pages development of this theory went through a long process over thousands of years to finally get what we now call Dalton’s atomic theory. Even later there is more learned about atoms. It started all the way back in about 400 B.C. by a Greek philosopher named Democritus.Democritus was one of the first to come up with the idea of the atom. He believed that the atom was the smallest of all particles. He described them as being indivisible and

Similar Essays

The Invention Of The Telescope: Galileo Galilei

671 words - 3 pages fame. News about an invention of a telescope reaches Italy; Galileo decided to develop his own. Using his telescope, he discovers uneven surfaces on the moon. Later on he discovers the four moons orbiting Jupiter. Also he discovered the rings around Saturn, and sunspots on the sun. Galileo also discovered that the planets Mercury and Venus go through phases just like the moon, and the only way they could do that is if they circled the sun

Astronomy Hubble Telescope Secrets Of The Universe

1916 words - 8 pages Hubble TelescopeSecrets of the UniverseNot since Galileo turned his telescope towards the heavens in 1610 has any event so changed our understanding of the universe as the deployment of the Hubble Space Telescope (HST). Galileo's telescope used a simple arrangement of two lenses in a long, narrow tube. Galileo was able to see objects 10 times more clearly than ever before possible.A telescope is an amazing device that has the ability to make

The Development Of Liberia Essay

619 words - 2 pages , there are still formidable reconstruction and development challenges arising from 14 years of bloody civil war and a history of economic mismanagement. Liberia’s history of conflict almost defines the challenges it faces if continued development, stability and long term peace are to be successful. Several key factors which contributed to the start of the civil war still threaten today; along with other repercussions stemming from the war. These

The Bias Of Development Essay

792 words - 4 pages The term “development” has been used by political, economic and international relations scholars to explain the relative economic statutes of various countries around the world. Numerous scholars have concerns about the potentially hegemonic nature of using the term “development”. Rhetorically, their concerns range from potential bias at the expense of indigenous methods to the continuation of western imperialist domination and exploitation of