Word: carbonations
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...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...
...process of extracting hydrogen from more conventional fuels such as gasoline and methanol inevitably releases some carbon dioxide--but not as much as the internal combustion engine does, and therein lies...
Though the issue is still controversial, many scientists believe that a documented rise in carbon dioxide levels worldwide has caused large-scale climate changes. If the trend continues, it could lead to environmental problems such as the melting of polar ice caps and a rise in ocean levels across the globe...
Only a decade ago, the debate over global warming dealt mainly with whether it was a real problem or a Chicken Little scare story. In theory it made sense: we are burning more and more coal and oil; coal and oil generate carbon dioxide gas; carbon dioxide traps the sun's heat like the glass of a greenhouse. In theory, therefore, the earth's temperature should be on the rise--with potentially disastrous consequences that could include inundated coastlines, drastically altered weather, severe disturbances to agriculture, and tropical diseases' pushing into new territory. But the effect was still too small...
Julia is a computer program, a piece of genuine artificial intelligence with a crude front end (you type as if chatting on America Online). She is also spellbinding. Indeed, our conversation with Julia was so realistic my girls, convinced that a carbon-based life-form was doing the real typing, insisted the whole thing was a scam. "Do you like cats?" Julia asked us. "Nope," I typed back, nudging Zoe and Ella to watch as I tripped up the primitive program. "I like pizza." "Great," replied Julia. "I go crazy for pizza." Doh! Next, Ella, the bawdiest member...