http://discovermagazine.com Science, Technology, and The Future http://discovermagazine.com/2007/dec/12_18_the-cheapest-way-to-power-your-car To provide 115, 400 Btu (the amount of energy in an average gas tank), you'd have to spend $14 on solar, $5 on natural gas, $3 on gasoline, $1.50 on wind, and only $1 on hydropower. 2007-12-18T08:20:49Z Print Article http://discovermagazine.com/2007/nov/if-you-never-aged-how-long-would-you-live With a little luck, you could well make it to your 20,000th birthday. Boonsri Dickinson 2007-11-16T04:35:28Z Print Article http://discovermagazine.com/2007/may/fuzzy-math Buying a pack of gum can leave you $5 richer. Alex Stone 2007-11-16T04:30:14Z Print Article http://discovermagazine.com/2007/apr/fuzzy-math-heavy-eggs Make sure to weigh all the information. Alex Stone 2007-11-16T04:29:50Z Print Article http://discovermagazine.com/2007/mar/fuzzy-math-impartial-jury A bad jury or judge? Might as well flip a coin. Alex Stone 2007-11-16T04:29:24Z Print Article