To use a light microscope to examine animal or plant cells. To make observations and draw scale diagrams of cells. Turn the coarse focus so that the stage is as close to the objective lens as ...

The neurotransmitter dopamine isn't just beautiful under polarized light - it's also a neurotransmitter that can get you high. Photographer Spike Walker ...

Reproduction of first compound microscope made by Hans and Zacharias Janssen, circa 1590. ... (light) microscope can't resolve objects smaller than the wavelength of visible light.

To use a light microscope to examine animal or plant cells. To make observations and draw scale diagrams of cells. Turn the coarse focus so that the stage is as close to the objective lens as ...