The difference is merely whether the same quantity of waste heat energy is thrown away at the source or in the vehicle.

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Now, the difference with the Valdez -- the Valdez was a knowable quantity of oil because it was a ship.

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The difference between revivals and originals this season is unquestionably one of quality not quantity.

ECONOMIST: Retreading the boards

Lead researcher, Dr. Yan Li, says they discovered "it makes no difference if a woman drinks wine, beer or liquor -- it's the alcohol itself and the quantity consumed" that is critical.

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