Life cycle of a star Stars are born in nebulae. Huge clouds of dust and gas collapse under gravitational forces‚ forming protostars. These young stars undergo further collapse‚ forming main sequence stars. Stars expand as they grow old. As the core runs out of hydrogen and then helium‚ the core contacts and the outer layers expand‚ cool‚ and become less bright. This is a red giant or a red super giant (depending on the initial mass of the star). It will eventually collapse and explode. Its fate
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and gas‚ most of the gas that makes up the nebula is hydrogen. Sometimes nebulas can remain mostly static for billions of years. Eventually though a passing star or shock wave from a supernova will disturb the gas and dust. The dust and gas may then start to clump together‚ gravity will then clump more and more gas together‚ this is when the star starts the next part of its life cycle. Protostar: A protostar is when the gas has clumped together and it getting hot but has not reached what is
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Assignment Presentation GUIDE FOR ASSIGNMENT PRESENTATION Contents Page No. 1. Introduction …………………………………………………………….. 1 2. Assessment Criteria …………………………………………………….. 1 3. Presentation of the Assignment ………………………………………… 1 4. Time Management for Assignments ……………………………………. 2 5. Planning and Sequence of an Assignment ……………………………… 3 6. Common Specific Instructions Used in Assignment Questions or Tasks … 4 7. Presentation ……………………………………………………………
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The main theme of "The Star" by Arthur C. Clarke deals with faith. Clarke defines faith as having belief and trust in God with strong conviction. Clarke believes that one must have faith not only during blissful times‚ such as during the time of creation‚ but also during time of anguish‚ such as when destruction occurs. God "created" when a star flew over Bethlehem‚ just as God destroyed a star‚ the Phoenix Nebula‚ and its surrounding planets including any life that may have lived there. God does
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The Essential Characteristics of Effective Teaching There are many attributes a teacher must possess to become an effective teacher. The way the teachers conduct themselves in the classroom will influence their student’s future‚ and as a teacher is a role model to all students‚ they must go about their daily activities with numerous essential characteristics. Teaching strategies have been impacted by Piaget’s and Vygotsky’s theories and because of these‚ constructivist teaching is now widely accepted
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Stars are born in high density areas of space called nebulas. A nebula (as defined by Dictionary.com) is: A diffuse mass of interstellar dust or gas or both‚ visible as luminous patches or areas of darkness depending on the way the mass absorbs or reflects incident radiation. The stars are born because of the gravity of the nebula acts on itself‚ condensing the gas and dust into a protostar. A protostar is a very small star. The protostar begins to heat up‚ and if it has enough matter the core
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Advanced Finance 1. Homework Investment Analysis 1. Question Rainbow Products Savings - $5000/year Machine costs $35.000 Expected to last for 15 years Cost of capital 12% A. payback?‚ NPV?‚ IRR? Payback: The amount of time required for a firm to recover its initial investment. by dividing the initial investment by the annual cash inflow. In our case $35.000/$5000= 7years NPV: Investment- the PV of its cash inflows discounted at a rate( the firm’s cost of capital)
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continuously learning new things. One area that amazes scientists is magnetars and pulsars. This report will discuss the formation of these stars‚ their characteristics‚ and the effects they have. Magnetars and pulsars are formed from the remnants of a Type II supernova 1. The exploding star is typically bigger than the sun 2. Having a mass greater than 1.989 X 10^30 kg 3.The star often dies because they no longer have the light force pushing outwards which counter acts the massive gravitational force (1 of
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Outline the concept of the augmented product. Apply and evaluate the concept to a brand of your choice. The concept of the augmented product tries to show how the overall view of the product and brand by fragmenting it into separate dimensions. Corey (1975) describes it as “the product is the total package of benefits that the customer receives when he buys.” There are 3 dimensions; core‚ tangible and intangible. Through these dimensions the product can be differentiated from competitors and
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To be a fan of Star Trek is one thing‚ but to be a “Trekkie” puts you in a while different category. Trekkies is an old documentary about the many loyal fans of the original movie‚ Star Trek. Have you ever asked yourself that question‚ What meaning has this show had in these people’s lifes? Does the show’s message hold some kind of ideal for the future? Does the show somehow create a way for people to feel they “fit in?” In the movie Trekkies‚ the Star Trek actors and fans answer these
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