Maryssa Buffano Miss Arnold Science – Current Astronomer Essay 4/12/2011 JMJ Dr. Debra Fischer – Astronomer An astronomer is an astrophysicist who studies stars‚ planets and galaxies. Astronomers use the laws of physics to investigate the matter and energy of celestial bodies. They then apply the research findings to solve space navigation and communication problems and even discover new planets and stars. In 1512‚ Copernicus theorized that the planets orbit the sun and the race
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times‚ not knowing what to call it. Sir William Herschel observed the planet on March 13‚ 1781‚ but he initially reported it on April 26‚ 1781 as a "comet”. Herschel engaged in a series of observations on the parallax of the fixed stars‚ using a telescope of his own design. Unlike the other planets of the solar system‚ Uranus is tilted so far that it essentially orbits the sun on its side‚ with the axis of its spin nearly pointing at the star. This unusual orientation might be due to a collision
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For example‚ In Venice‚ a toy telescope was invented. Galileo took that concept and tried creating it into a useful device. Galileo’s improved version of the telescope revolutionized astronomy. Upon doing so‚ it has "Let him observe and describe the moons of Jupiter‚ the rings of Saturn‚ the phases of Venus‚ sunspots and the rugged lunar surface" (History
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million light years away will take 3 million years to reach the Earth. In this way‚ scientists can "look" back in time to see far into the history of our universe. This is limited‚ however‚ as at one point the universe was dark. Even the most powerful telescopes of the future will not be able to look into the first billion years of our universe. Adam Frank (2006) describes this early‚ and dark‚ period of our universe in his article describing the "First Billion Years." According to the Big Bang theory
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that he soon developed his own. Shortly after he had created his telescope‚ he had demonstrated to the Venetian merchants as a way of spotting ships. Galileo realized that this telescope could be used for more than seeing beyond the eye on Earth that he explored the sky with his telescope as well. Nearly a year later Galileo published a small booklet called The Starry Messenger. This booklet revealed his discoveries with his telescope thus far. These would include that the moon was not flat and smooth
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Paley explains that the eye was designed for vision‚ similar to the telescope‚ which was designed to aid in distant vision. Paley describes that the eye is superior to the telescope‚ which is consistent to the way in which the artist of the eye is superior to the artist of the telescope. By explaining the intricate features of the eye‚ Paley shows the vast complexity of the eye. According to Paley‚ the eyebrows function in preventing
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Megamind In the sleepy‚ little town of Woolsthorpe‚ England‚ January 4‚ 1643‚ Hannah Newton became the proud mother of a small baby boy. The boy’s father had died three months prior to his son’s birth. So to honor him‚ Mrs. Newton named her son Isaac in remembrance of his father‚ Isaac Newton Sr. However‚ she never dreamed her son‚ descended from the humble farmer‚ would one day become one of the greatest scientific minds in history. After raising young Isaac for three years‚ Mrs.
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When one thinks about Earth compared to the rest of the universe‚ Earth seems very small and then when thought about from a single person’s point of view‚ one realizes how miniscule a human is when compared to the rest of space. As the world moves more into the future‚ technological advances continue to evolve‚ but still the world has not learned a fraction of what space has to offer. Space is one of the most interesting topics in today’s world because it continually puzzles mankind‚ impacts society’s
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spectrum to the right: Hydrogen 3. Is a toaster oven filament an example of an emission‚ absorption‚ or continuous spectrum? What about a neon lamp? Continuous Spectrum‚ Emission 4. Add and remove a gas cloud‚ and change to Telescope 2 and back to Telescope 1. Just an exercise‚ no question. 5. Now have the star recede (so that it is moving away from Earth). Are the absorption lines shifted to the red or to the blue? Now have the star move perpendicular to Earth. In this case‚ is the
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IMPORTANT QUESTIONS IN PHYSICS (CLASS XII) ELECTROSTATICS One mark questions. 1. If a point charge is rotated in a circle of radius r around a charge q‚ what will be the be the work done? 2. Does the electric potential increase or decrease along the electric line of force? 3. Give the relation between electric intensity and electric flux. 4. What is the dielectric constant of a metal? 5. What is the potential energy of two equal negative point charges 2μC each held 1m apart in air?
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