Answer:
Illuminator: A steady light source (110v) used in place of a mirror. If your microscope has a mirror, it is used to reflect light from an external light source up through the bottom of the stage.
Explanation:
Hopefully This Helps
Layer 8 is older than layer 1
Sometimes, I think it's just how it reacts to the air but if it was crazy bubbles I'd be skeptical I'm a pretty paranoid person though...
Oxygen, carbon, and hydrogen.