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Published online 14 November 2007 | Nature 450, 345 (2007) | doi:10.1038/450345a
News Feature
Climate politics: What every president should know
If you want to lead the free world, you'd better know your physics. That's the lesson from a popular undergraduate class, called 'Physics for future presidents', taught by Richard A. Muller at the University of California, Berkeley. Here he sets some typical questions. An interactive version of this quiz with extended answers is online at http://www.nature.com/news/specials/climatepolitics/index.html.
1) Electricity from the wall plug costs about 10 cents per kilowatt-hour (kWh). If you were to get the same electricity by buying AAA alkaline batteries at the local store, the cost of that electricity would be:
(a) 15 cents per kWh
(b) 94 cents per kWh
(c) $2.
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