Word: pureness
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Dates: during 1990-1999
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...Pure, Clean...
...efficiency isn't the only reason fuel cell advocates take the gadgets so seriously. In theory, unlike internal combustion engine--which spew greenhouse gases such as carbon dioxide into the atmosphere--a fuel cell's only "pollution" is pure water and electrical current...
...practice, the equation isn't so spotless. Though oxygen is plentiful in the air, pure hydrogen is much harder to come by and must be obtained artificially...
...pollution levels of fuel cells, while seemingly their raison d'etre, is also their most damning flaw. A fuel cell is a highly efficient reactor, but is notoriously picky about what it consumes--only pure hydrogen and oxygen...
...mathematics concentrator from Elk Grove Village, Ill., Johari will be enrolling in a one-year masters program in mathematics at Cambridge. Primarily interested in the interactions between pure and applied mathematics, he said that he hopes to use his experience in England to learn to shape university mathematics education...