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Articles posted on Saturday, October 27, 2012

Nitrogen cycle: Difference Engine: End of the electric car? The Economist

Saturday, October 27, 2012
Category: Innovation

From www.economist.com

A growing body of opinion seems to think liquid air is the answer (or, more specifically, the nitrogen component that makes up 78% of air). It is not exactly a new idea. Air was first liquefied in 1883, using essentially the same process as today—ie, compressing it to 200 atmospheres, cooling it to -190ºC, and then letting it suddenly expand and condense.

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