The Left Hand of the Electron - download pdf or read online

By Isaac Asimov

ISBN-10: 0385043457

ISBN-13: 9780385043458

ISBN-10: 0856173789

ISBN-13: 9780856173783

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I 56 THE P R O B L E M O F L E F T A N D RIGHT one of any molecule capable of existing as minor-image twins, and always the same single one. (This accounts, by the way, for the fact that Pasteur could separate the mirror-image components of racemic acid mechanically, as described in the previous chapter. ) Is there perhaps some regularity to be found in which mirrorimage twins will occur in tissue. At first glance, it doesn't seem so. Some compounds in living tissue are dextrorotatory and some are levorotatory and there seems no regularity to the matter.

In sunlight, all the different particles were mixed evenly and the effect was to impress our eye as white light. " Particles differing in their color nature were refracted by different amounts so that the colors in white light were separated within the glass. In an ordinary sheet of glass, with two parallel faces, the effect was reversed when the light emerged once more from the other side, so that the colors were again merged into white light. In a prism, it was different. The light particles bent sharply when they entered one side of the triangular piece of glass, and then bent a second time in the same direction on emerging through a second, non-parallel side.

These particles differed among themselves in some way so that they produced the sensations of different colors. In sunlight, all the different particles were mixed evenly and the effect was to impress our eye as white light. " Particles differing in their color nature were refracted by different amounts so that the colors in white light were separated within the glass. In an ordinary sheet of glass, with two parallel faces, the effect was reversed when the light emerged once more from the other side, so that the colors were again merged into white light.

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The Left Hand of the Electron by Isaac Asimov


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