To explore the meaning of inter-instrumentality, Chris Toumey provided samples of his blood and hair to be imaged by four different types of microscope. Here he describes the results. Before people ...

A split-field photo of cartridge casings through the lens of firearm examiner Michael Haag’s comparison microscope. Haag said he determined the casing on the left, recovered as evidence of a crime, ...

Widely considered the most common type of microscope, Optical Microscopes magnify visible light to allow for the examination of features too small for the naked eye. This kind of microscope is ...

Sometimes referred to as dissecting microscopes, stereo microscopes provide a three-dimensional view of a specimen by using two separate objective lenses and eyepieces. While these microscopes tend to ...

A transmission electron microscope (TEM) functions similar to a standard microscope, but uses electrons rather than visible light. Because a TEM uses the much smaller wavelength of electrons, it can ...