Professor - The Milky Way is the galaxy that contains the Earth. This name derives from its appearance as a dim milky glowing band stretching across the night sky‚ in which the naked eye cannot distinguish individual stars. The term Milky Way is a translation of classical Latin ____ from the Hellinistic Greek‚ Milky Circle. The Milky Way appears like a band disk-shaped structure being viewed from inside. The fact that this faint band of light is made up of stars in 1610 when Galileo Galilei used
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SUN MICROSYSTEM CASE: Chapter 3 - Comprehensive Problem 2 Sun Microsystems is a leading supplier of computer related products‚ including servers‚ workstations‚ storage devices‚ and network switches. In the letter to stockholders as part of the 2001 annual report‚ President and CEO Scott G. McNealy offered the following remarks: “Fiscal 2001 was clearly a mixed bag for Sun‚ the industry‚ and the economy as a whole. Still‚ we finished with revenue growth of 16 percent—and that’s significant. We believe
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Dark Energy VS Dark Matter Dark Matter Dark Matter is the name given to mass that emits no detectable radiation. ‘’Dark Matter accounts for the galaxies rotating about "local groups" in tighter orbits than we expect from our observations. Gravity is stronger than we can account for unless there is some matter we cannot see. We are much more certain what dark matter is not than we are of what it is” (Feild‚ Ann‚ 2013). Scientists think dark matter is made of particles called WIMPS‚ "weakly
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It is appropriate for grade levels 3-8‚ depending upon prior knowledge and interest level of student. Lesson Plan Purpose: Introduction to Astronomy The objective of this science lesson plan is to introduce the concepts of space‚ our solar system‚ galaxies and other celestial objects. Students will learn about the importance of space technology and space education. Students will use various space related activities to explore the basic concepts and to demonstrate their acquired knowledge. Students
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and convinced astronomers that black holes exist. In particular‚ a technique used by astronomers to locate both stellar and super-massive black holes is to observe the motion of stars in the area around the supposed black hole.[4] Most stars in our galaxy are formed in groups of two or more stars‚ by observing the visible partner of a binary system‚ astronomers can effectively trace a black hole. Astronomers can calculate the mass of a black hole quite simply‚ using Keplar’s laws of motion‚ this is
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Nebula is an interstellar cloud of dust‚ hydrogen‚ helium and other ionised gasses. The discovery of nebula goes back to the early 1600s. Nicolas-Claude Fabri de Peiresc discovered the Orion Nebula in 1610 using a refracting telescope. Nicolas-Claude Fabri de Peiresc used this telescope to observe the skies‚ for example‚ it was used to observe Jupiter’s moons as well as other aspects of space‚ including nebulae. The discovery of the Orion nebula was revolutionary. While it was Nicolas-Claude Fabri
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Question Answers 1. What does Hubble’s law predict about the speed of a galaxy far away from the Milky Way compared to one that is closer? Hubble’s law predicted that galaxies were moving away from earth at a rate proportional to their distance from us. The farther away from the Milky Way a galaxy is‚ the larger the redshift is. The farther away a galaxy is‚ the faster it is moving away. Conversely‚ blueshifted galaxies‚ such as Andromeda‚ are moving closer to the Milky Way. 2. In a few sentences
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Galaxies A Galaxy is a gravitational bound system composed by stars‚ stellar remnants‚ an interstellar medium of gas and dust‚ and a component called dark matter. Galaxies are categorized according to their shape‚ some of them are elliptical galaxy which has an ellipse-shaped light profile‚ spiral galaxies are disked shaped with curvy arms‚ smaller galaxies are referred as irregular galaxies. Galaxies don’t float through space‚ they are together in groups known as clusters‚ some clusters are large
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mass of the Milky Way disk galaxy is at least 50% unseen mass or material. The Dark halo of mass surrounding the Milky Way supports the velocity of the galaxies spin as well as keeps it in shape. The discrepancy in the spiral of galaxies is that they do not have enough mass (even at their centers) to keep the millions of solar systems withheld in its gradational field. So physicists had a problem. What was the explanation for the velocity and rotational curve in galaxies? Observations indicate halos
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Do you ever notice how sometimes when you are sitting in the car and hear the ambulance it seems to take forever for it to come around you? Or how about times when you yell “HEY YOU” or “MOM” in a grocery store standing in the middle of the aisle people from all directions can hear you….and some even answer? Or lastly how about this example‚ have you ever seen an insect in the water kicking and it seems if the ripple is getting bigger and bigger and the waves are going in all directions not just
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