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V. NEW TOOLS AND OLD
Microscopic life
We remember also the wonderful microscopes of school
laboratories, a technology that helped to revolutionize the
teaching of elementary biology at the beginning of the
century. There was nothing to compare with observation
through a microscope of a good histological preparation or a
cultivation of bacteria. The images of the nervous system
obtained at the beginning of the century by Santiago
Ramón y Cajal are still reproduced in the most modern
of treatises on histology. In addition, systems for
projection and photography, multiple eyepieces, etc. also
permit the simultaneous access of many students to the
fascinating world of the minuscule. Nevertheless, this
optical technology can now count on a formidable extension
in the field of image digitizing. Many courses on
metallography, biology and medicine have incorporated
thousands of microscope images on CD-ROM's. Naturally this
new way of looking at things will also have a substantial
impact on course programs.

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