Astronomy And Technology

Astronomy Timeline - 20 Important Dates1609 - Galileo uses the squelch for astronomical observations . He discovers 3 of Jupiter s moons , the Moon s craters , and the Milky Way extragalactic nebula . He also observed sunspots , which went contrary to the then(prenominal) prevalent judgement of celestial perfection . He also observed that genus Venus went through phases , much like the Moon , giving raise support to the heliocentric model of Copernicus1668 - Isaac Newton builds the first reflecting telescope , which became the prototype of today s telescopes . Because of his experiments on the properties of light , he deduces that reflecting telescopes impart be more useful than lens-based ones1675 - Ole Romer , a Danish astronomer , measures the stronghold of light . He observed that in that location were discrepancies in his observations of the moons of Jupiter , where the intervals between eclipses would change depending on whether the Earth was moving towards or away from Jupiter1687 - Isaac Newton publishes his work on the theory of world-wide gravitation . This heralds the beginning of modern astronomy 1842 - Christian Doppler discovers the Doppler depression , the app arnt increase or decrease in the frequency of a wave depending on the direction of motion of the beholder . In astronomy , the Doppler effect is important in interpretation observations of distant bodies , particularly stars . The Doppler effect results in either a red-shift or a blue-shift and is used primarily to measure the advance at which the stats approach or recede from us 1860 - Sir William Huggins begins his attempts at spectral analysis . He had a private lookout station where he used a spectroscope to make many an(prenominal) observations on the spectral emission and absorption lines and analyze tha chemic composition of many heavenly bodies . In his findings he imposing galaxies from nebulae by the difference in their emission spectra1903 - Konstantin Tsiolkovskii s work , The geographic expedition of Cosmic Space by Means of Reaction Devices , is make . He is considered the Father of Astronautics .

He had many theories on space flight and uprise propulsion , and his many ideas are in use today , such as the multi-stage rocket design for achieving escape velocity from earth1905-1916 - Albert Einstein introduces his Theory of particular Relativity in his Electrodynamics of Moving Bodies , and then his Theory of worldwide Relativity in 1916In his theory of special relativity the speed of light is constant independent of any frame of root . It showed that time can slow down for an observer in motion . This has been proven in modern experiments Einstein interrelated his theory of special relativity with Isaac Newton s law of universal gravitation , where he viewed gravity not as a force but as a manifestation of cut space-time 1923 - .Edwin Hubble shows that galaxies exist outside the Milky Way galaxy . Using the 100 inch Hooker telescope , then the most powerful in the world , he unflinching that some of the nebulae seen with earlier telescopes were actually galaxies1931 - Karl Jansky discovers cosmic radio waves . He built a large antenna could be turn in any direction . He discovered that there was a...If you want to get a full essay, order it on our website: Ordercustompaper.com

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