Chapter 28: Problem 22
What do you think will set the limit on the lifetime of our technological civilization? Explain your reasoning.
Chapter 28: Problem 22
What do you think will set the limit on the lifetime of our technological civilization? Explain your reasoning.
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Get started for freeThe late, great science-fiction editor John W. Campbell exhorted his authors to write stories about organisms that think as well as humans, but not like humans. Discuss the possibility that an intelligent being from another world might be so alien in its thought processes that we could not communicate with it.
How do you think our society would respond to the discovery of intelligent messages coming from a civilization on a planet orbiting another star? Explain your reasoning.
Science-fiction television shows and movies often depict aliens as looking very much like humans. Discuss the likelihood that intelligent creatures from another world would have (a) a biochemistry similar to our own, (b) two legs and two arms, and (c) about the same dimensions as a human.
Like other popular media, the World Wide Web is full of claims of the existence of "extraterrestrial intelligence"namely, UFO sightings and alien abductions. (a) Choose a Web site of this kind and analyze its content using the idea of Occam's razor, the principle that if there is more than one viable explanation for a phenomenon, one should choose the simplest explanation that fits all the observed facts. (b) Read what a skeptical Web site has to say about UFO sightings. A good example is the Web site of the Committee for the Scientific Investigation of Claims of the Paranormal, or CSICOP. After considering what you have read on both sides of the UFO debate, discuss your opinions about whether aliens really have landed on Earth. NM2e,
The Drake Equation. Access the Active Integrated Media Module "The Drake Equation" in Chapter 28 of the Universe Web site or eBook. (a) For each of the terms in the Drake equation, choose a value that seems reasonable to you. How did you choose these values? Using the module, what do you find for the number of civilizations in our Galaxy? From your calculation, are civilizations common or uncommon in our Galaxy? (b) Using the module, choose a set of values that give \(N=10^{6}\) (a million civilizations). What values did you use? Which of these seem reasonable to you, and why?
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