"It's hard to say if the physiology described in science is actually seen when a tear is crystallizing under a microscope, or if the emotional waves and state of the person is influencing the way ...

Viewer discretion is advised for the attached video** An advanced piece of equipment that drastically improves the diagnosis ...

Let's take a look at how to observe cells under a microscope. No prizes for guessing ... To see an object, the eye piece lens and the objective lens magnification are multiplied together to ...