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A scanning tunneling microscope (STM) is an instrument for imaging surfaces at the atomic level.Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer (at IBM Zuerich), zÃ¼rich The Nobel prize In physics in. 1986he resolution of an image is limited by the radius of curvature of the scanning tip of the STM. Additionally, image artifacts can occur if the tip has two tips at the end rather than a single atom; this leads to âdouble-tip imaging,â a situation in which both tips contribute to the tunneling.
1667: Robert Hooke 's famous Micrographia is published, which outlines Hooke's various studies using the microscope. 1675: Enter Anton van Leeuwenhoek, who used a microscope with one lens to observe insects and other specimen. Leeuwenhoek was the first to observe bacteria. 18th century: As technology improved, microscopy became more popular among scientists. Part of this was due to the discovery that combining two types of glass reduced the chromatic effect.