Every schoolkid has peered into a microscope and been awed by the hidden world of skin cells and squiggly bacteria. But microscopes are also critical tools for investigating the causes of disease and ...
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In 1931, electromagnetic lenses helped scientists see a world ordinary microscopes could not reach
In 1931, electron microscopy took a major step forward. The first prototype electron microscope is generally dated to 1931, but Ruska later described the first electron microscope in the modern sense ...
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