Energy Search Goes UndergroundAugust 5th, 2007 By ELIANE ENGELER and ALEXANDER G. HIGGINS, Associated Press Writers in Technology / Energy & Green Tech
(AP) -- When tremors started cracking walls and bathroom tiles in this Swiss city on the Rhine, the engineers knew they had a problem.
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"Energy Search Goes Underground." August 5th, 2007. http://phys.org/news/2007-08-energy-underground.html