Can you name the factors that make up the Rare Earth Equation?
- Answers do not have to be guessed in order
- Source: Wikipedia article on the Rare Earth hypothesis
- In Peter Ward and Donald Brownlee's book, "Rare Earth", they argue that Drake's estimate of the number of civilisations is optimistic, challenging the "Principle of Mediocrity".
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The Rare Earth Equation Quiz
- Created Feb 11, 2010 in Science
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