The big picture: When retro tech obsessive Shelby Jueden pointed a low-cost digital microscope at a decades-old LaserDisc, he didn't just see reflections of light – he uncovered the physical trace of ...

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 ...

It’s relatively easy to understand how optical microscopes work at low magnifications: one lens magnifies an image, the next magnifies the already-magnified image, and so on until it reaches the eye ...