American Scientist (May/June 2016) by PDF

Evaluation: American Scientist journal is an illustrated bimonthly journal approximately technological know-how and know-how. every one factor is stuffed with characteristic articles written by means of widespread scientists and engineers, reviewing vital paintings in fields that variety from molecular biology to computing device engineering. The articles are conscientiously edited and observed through illustrations which are built to augment the reader's knowing and enjoyment.

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Another consideration is fugitive emissions associated with hydraulic fracturing. Natural gas is mainly methane, a greenhouse gas that is 25 times more potent than carbon dioxide. Although the amount of methane varies, it’s clear that some of this gas escapes during the hydraulic-fracturing process. In some cases, that amount is not trivial. 162 Water tanks are set up for a hydraulic fracturing job. Although this natural gas extraction technique uses relatively modest quantities of water, in some locations there already is not enough to go around.

Although these results are found in many different fields and areas of science, mathematics, and logic, they can be grouped and classified into four types of limitations. By closely examining these classifications and the way that these limitations are found, we can learn much about the very structure of science. Discovering Limitations The various ways that some of these limitations are discovered is in itself informative. One of the more interesting means of discovering a scientific limitation is through paradoxes.

So which is it? The answer is that the nature of light depends upon which experiment is performed. Was a wave experiment performed, or was a particle experiment performed? This duality ushers a whole new dimension into science. In classical science, the subject of an experiment is a closed system that researchers poke and prod in order to determine its properties. Now, with quantum mechanics, the experiment—and more important, the experimenter— become part of the system being measured. By the act of measuring the system, we affect it.

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American Scientist (May/June 2016)

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