UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
11th Edition
ISBN: 9781319278670
Author: Freedman
Publisher: MAC HIGHER
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Chapter 27, Problem 8CC
To determine
The reason behind the use of radio waves for life exploration in the galaxy instead of using robotic interstellar spaceships.
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Suppose there are 12000.0 civil actions broadcasting radio signals in the Milky Way Galaxy at the moment. On average, how many stars would have to be search before a signal is heard? Assume that there are 3 x 1011 stars in the Galaxy and one civilization per star.
Chapter 27 Solutions
UNIVERSE LL W/SAPLINGPLUS MULTI SEMESTER
Ch. 27 - Prob. 1CCCh. 27 - Prob. 2CCCh. 27 - Prob. 3CCCh. 27 - Prob. 4CCCh. 27 - Prob. 5CCCh. 27 - Prob. 6CCCh. 27 - Prob. 7CCCh. 27 - Prob. 8CCCh. 27 - Prob. 9CCCh. 27 - Prob. 10CC
Ch. 27 - Prob. 11CCCh. 27 - Prob. 12CCCh. 27 - Prob. 13CCCh. 27 - Prob. 14CCCh. 27 - Prob. 1CLCCh. 27 - Prob. 1QCh. 27 - Prob. 2QCh. 27 - Prob. 3QCh. 27 - Prob. 4QCh. 27 - Prob. 5QCh. 27 - Prob. 6QCh. 27 - Prob. 7QCh. 27 - Prob. 8QCh. 27 - Prob. 9QCh. 27 - Prob. 10QCh. 27 - Prob. 11QCh. 27 - Prob. 12QCh. 27 - Prob. 13QCh. 27 - Prob. 14QCh. 27 - Prob. 15QCh. 27 - Prob. 16QCh. 27 - Prob. 17QCh. 27 - Prob. 18QCh. 27 - Prob. 19QCh. 27 - Prob. 20QCh. 27 - Prob. 21QCh. 27 - Prob. 22QCh. 27 - Prob. 23QCh. 27 - Prob. 24QCh. 27 - Prob. 25QCh. 27 - Prob. 26QCh. 27 - Prob. 27QCh. 27 - Prob. 28QCh. 27 - Prob. 29QCh. 27 - Prob. 30QCh. 27 - Prob. 31QCh. 27 - Prob. 32QCh. 27 - Prob. 34QCh. 27 - Prob. 35Q
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- What are the advantages to using radio waves for communication between civilizations that live around different stars? List as many as you can.arrow_forwardSuppose astronomers discover a radio message from a civilization whose planet orbits a star 35 lightyears away. Their message encourages us to send a radio answer, which we decide to do. Suppose our governing bodies take 2 years to decide whether and how to answer. When our answer arrives there, their governing bodies also take two of our years to frame an answer to us. How long after we get their first message can we hope to get their reply to ours? (A question for further thinking: Once communication gets going, should we continue to wait for a reply before we send the next message?)arrow_forwardWhy are we limited to finding life on planets orbiting other stars to situations where the biosphere has created planet-scale changes?arrow_forward
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