an electron microscope is used for seeing very small objects by making them appear bigger
electron_microscopy is microscopy. electrons is smaller_than_protons. microimage is image. optical_microscope is microscope. microimage is not image. electron_microscope is microscope. electron_microscopy is not microscopy. binoculars is easier_to_use_than_telescope. electron_microscope is not microscope. light_microscope is microscope.