invisible light can be performed at any hour of the day. Another‚ probably more key advantage of radio astronomy is that in our galaxy there is quite a bit of dust‚ which makes some other galaxies impossible to view using visible light and optical telescopes. Radio waves travel unimpeded by this dust and allow us to detect these other galaxies‚ and along with this allow us to perform radio astronomy with clouds and rain. Radio astronomy has also helped detect many new objects that would have otherwise
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to grind lenses. He invented the telescope and improved it further on. With his improved telescope‚ he could see ships in the sea two hours away. His telescopes were then supplied to the navy. Galileo then turned his telescope towards celestial objects. He observed the moon’s surface and saw that it was not as smooth as the naked eye saw it to be. The surface of the moon was actually uneven‚ rough‚ and full of cavities. He looked at Jupiter through his telescope and saw 3 stars aligned with the planet
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1) Why was the use of the telescope by Galileo‚ 400 years ago‚ such a significant event in the history of astronomy? (120 words‚ 2 marks) The introduction of Galileo’s refracting telescope was a significant event in history because of the conclusions Galileo proved using his instrument. He disproved the Roman Catholic Church’s belief that the Earth was at the centre of the universe‚ instead of the Sun. He observed the moon-like areas on Venus that could only be true if the Sun was at the centre
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the spyglass and the telescope. In 1609‚ Galileo built the first version of his telescope. He is often incorrectly credited with the invention of the first telescope. Galileo only improved the telescope and made his own. He modeled his telescope by the ones that were made in other parts of Europe. The first telescope was made by Hans Lippershey. The telescopes that were in other parts of Europe could magnify up to three times. Once Galileo Galilei heard about the telescope he started‚ right away
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significant because Herschel sought information that was different than what other astronomers were studying at the time. What was the motivation that led to the discovery? William Herschel was frustrated with the small telescopes he was using. He couldn’t afford larger telescopes‚ so he built one himself. He was observing a Nebula when he discovered Uranus. What questions were asked? How can he see it? What if it is a planet? What are we going to name it? What did his work do for England?
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for being out of bed. But then again‚ Filch is a bit of an idiot. We headed up to the top of the astronomy tower‚ glancing at the lunar chart Professor Turing had posted to be sure that it was’t a full moon. Thankfully‚ it wasn’t. We carried our telescopes‚ secure in their bags with the lens caps fasted on‚ to the top of the tower. We both wanted to run outside and start searching the sky for planets‚ but‚ of course‚ we had to wait for them to cool down. While we waited for the ten minutes to pass
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CH 2 -According to Aristotle‚ larger‚ heavier objects were supposed to fall to the ground faster than smaller‚ lighter objects. Galileo performed a number of experiments to Aristotle’s pronouncements‚ that two objects of different weight dropped from the same height fall down at exactly the same rate. -Copernicus published his findings in 1543‚ the same years as his death‚ in a text entitled (On the Revolutions of the Celestial Spheres). -Heliocentric theory was proposed by Aristarchus of Samos
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EXPERIMENT NO-1 AIM- To determine the frequency of A. C. mains by using an electric vibrator. APPARATUS- Electric vibrator‚ table lamp‚ pulley‚ weight box‚ fishing cord‚ a. c. source. THEORY- when a cord of mass per unit length m is connected to the vibrating rod of the vibrator and stretched with a tension T‚ the cord vibrators in segments. If the length of the cord is then adjusted until the nodes are clearly marked‚ the frequency of the stretched string is the same as of the vibrating rod which
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His advanced instrument allowed him to view things no one before him had seen (Westfall‚ 1985). Using the newly improved telescope he discovered Jupiter’s four largest moons‚ the rings of Saturn‚ the phases of Venus‚ and the irregular moon (Galileo‚ 2010). He took his eye to the heavens because he wanted to provide evidence of interpretation of the Bible. However‚ his sightings
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radio waves are larger than optical waves‚ radio telescopes work differently than telescopes that we use for visible > light (optical telescopes). Radio telescopes are dishes made out of conducting metal that reflect radio waves to a focus point. Because the wavelengths of radio light are so large‚ a radio telescope must be physically larger than an optical telescope to be able to make images of comparable clarity. For example‚ the Parkes radio telescope‚ which has a dish 64 meters wide‚ cannot give
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