Nearly 100 years ago, a seemingly simple discovery revolutionized the microscope. The introduction of phase contrast, which ...

Add Yahoo as a preferred source to see more of our stories on Google. Microscopes have long been scientists’ eyes into the unseen, revealing everything from bustling cells to viruses and nanoscale ...

A comparison of experimental annular dark field (ADF)-scanning transmission electron microscopy (STEM) and electron ptychography in uncorrected and aberration-corrected electron microscopes. In the ...

Fifteen years ago, physicists worked out a method to increase image contrast by hitting the electron imaging beam with an ...

For hundreds of years, the optical microscope was the only tool available to scientists wanting to study the movement of cells, bacteria and yeast. But the diffraction of light made it impossible to ...