car tech
Nitrogen Enriched Gasoline From EarthTalk
July 24, 2011 | 
Author Find out about Nitrogen enriched gasoline (NOx) in this EarthTalk article.
Dear EarthTalk: Since nitrogen oxide compounds are components of smog and are common water pollutants, does nitrogen-enriched gasoline create additional pollution?
– Rick Oestrike, Poughkeepsie, NY
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Key Fobs Compared – Feature – Car and Driver
Remote operation of door locks is all but universal today. Click a button on the key fob, or on the key itself, and doors open or lock. Battery powered, these miniature radio-wave transmitters have been around for decades. The earliest specific patent we unearthed dates to 1973, and the first systems appeared about 10 years later.