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  • A head louse clasping a human hair under a SEM microscope.
    Rights: Liz Girvan Published 29 February 2012 Size: 430 KB Referencing Hub media

    A head louse clasping a human hair. The image was taken using an SEM at 110x magnification. At low magnifications like this, SEM generates three-dimensional images that are in focus throughout the depth of the sample.

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