User talk:Student6090

Biology: The Evolution of the Microscope By Blake Creighton 1590- The First Microscope- This invention allowed objects to be observed more closely. It was invented by Dutch lens grinders named Hans and Zacharias Janssen. 1609- Microscope- Galileos more advanced microscope allowed better observation and focus. 1675- Microscope- Microscopes become powerful enough to observe cells and bacteria. 1800s- microscope- Microscopes become more advanced and easier to handle allowing better observation with reduced glare. 1830- microscope- Joseph Jackson Lister reduces spherical aberration to give a clearer image. 1903- Ultra Microscope- The Ultra Microscope, invented by Richard Zsigmondy, allows observation of objects below the wavelength of light. 1932- Phase Contrast Microscope- Frits Zernike's Phase Contrast Microscope allows study of colorless and transparent biological materials. 1938- Electron Microscope- Ernst Ruska's Electron Microscope improves resolution and expands borders of exploration. 1981- Scanning Tunneling Microscope- The Scanning Tunneling Microscope, invented by Gerd Binnig and Heinrich Rohrer, allows three-dimensional images to be viewed down to the atomic level. 2008- Helium Ion Microscope- The Helium Ion Microscope, using the same principals as the Scanning Tunneling Microscope, provides a much higher resolution and higher contrast. Mrs. Pope ROCKS!!!!!!!