By Michael A. Seeds, Dana Backman
With their best-selling astronomy textbook, UNIVERSE: sunlight approach, STARS, AND GALAXIES, authors Mike Seeds and Dana Backman assist you comprehend your home within the universe--not simply your situation in house yet your function within the unfolding background of the actual universe. to accomplish this aim, the authors concentrate on vital questions: "What Are We?" which highlights your house as a planet dweller in an evolving universe, guiding you to higher comprehend the place we got here from and the way we shaped; and "How can we Know?" which supplies insights into how the method of technology can train us extra approximately what we're.
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Additional resources for Universe: Solar System, Stars, and Galaxies
Your life is regulated by the cycles of the sky, and the most obvious cycle is that of the sun. Y 3-1 Cycles of the Sun Earth’s rotation on its axis causes the cycle of day and night, but it is its motion around the sun in its orbit that defines the year. Notice an important distinction. Rotation is the turning of a body on its axis, but revolution means the motion of a body ■ The Annual Motion of the Sun Even in the daytime, the sky is filled with stars, but the glare of sunlight fills Earth’s atmosphere with scattered light, and you can see only the brilliant sun.
How Do We Know? How does the scientific method give scientists a way to know about nature? Discussion Questions 1. Do you think you have a duty to know the astronomy described in this chapter? Can you think of ways this knowledge helps you enjoy a richer life and be a better citizen? 2. How is a statement in a political campaign speech different from a statement in a scientific discussion? Find examples in newspapers, magazines, and this book. Problems 1. The diameter of Earth is 7928 miles. What is its diameter in inches?
Editorial review has deemed that any suppressed content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. 17 Zenith North celestial pole 1 South Earth tor ua eq The apparent pivot points are the north celestial pole and the south celestial pole located directly above Earth’s north and south poles. Halfway between the celestial poles lies the celestial equator. Earth’s rotation defines the directions you use every day.