Cemal Ekin] over on PetaPixel reviewed the Apexel 200X LED Microscope Lens ... this one looks a little more substantial than the usual piece of plastic in a spring-loaded clip.

He had seen Leuwenhoeck manufacture lenses, such as they were, and went on burning his glass threads, and attempted to place his little spheres between two pieces of lead, through which he made an ...

You should not look through the microscope to do this. Place the microscope slide – either one you have prepared, or a permanent slide – on the stage. Line it up so that the specimen – if ...