Word: carbone
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Dates: during 1960-1969
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...applied the same principle to auto engines. After yearlong tests of six cars and trucks fueled by natural gas, the company reports a dramatic decrease in air pollution. Because natural gas burns cleanly, the vehicles emitted almost no hydrocarbons. Measuring the emissions with infra-red light, engineers found that carbon monoxide in the exhaust fell from 28 grams per mile with gasoline to 2 with natural gas; nitrous oxides dropped from 4 grams to .5. Already the company has started converting 1,100 other vehicles in its fleet to natural gas. Last month the Federal Government began testing the Pacific...
...light and visitors, archaeologists have been concerned about the effects of this exposure. By the 1950s, when as many as 125,000 people were visiting the site annually, the French had installed an elaborate air-conditioning system in an attempt to restore the original conditions of humidity, temperature and carbon-dioxide concentration in the cave. Nonetheless, the precautions failed...
Like other algae, Palmellococcus thrives on light, moisture, mineral salts and carbon dioxide. Yet when it can feed on such organic substances as sweat, pollen and bacteria-which were also brought into the grotto-it will multiply well even in dim light. If enough of these nutrients are present, it can survive without any light at all. In fact, it was this steady buildup of organic matter, Lefevre and Laporte say, that enabled Palmellococcus to proliferate even when the cave was shut down and left in total darkness...
...Pimental reported that his ephemeral clue to the existence of Martian life had proved to be false. What he had read as the characteristic "signatures" of methane and ammonia in spectrographic information gathered near the Martian south pole, he admitted, were actually produced by a thick layer of frozen carbon dioxide, otherwise called diy ice. How did the embarrassing error occur? Only when he checked out the experiment in his laboratory, Pimental explained, did he learn that a thick layer of dry ice could produce spectral characteristics similar to those of methane and ammonia...
...Clouds. Other scientists also had some second thoughts about their Mars findings. Originally, the temperature of the southern polar cap was reported as -180°F., or roughly the frost point of carbon dioxide under Martian atmospheric pressure. Now, the scientists say that the temperature is probably about four degrees lower and the atmospheric pressure several millibars higher than first estimated. That would mean that the pole is not solid carbon dioxide, as scientists once speculated. Instead, it is possibly composed of a mixture of carbon dioxide and ordinary ice, and perhaps obscured by a cloud of dry-ice particles...