Technology leads to Discovery & Microscopy. Map the process of Dr. Warren's discovery of bacteria (not confirming the bacteria causes ulcers), starting with observing a thin blue line on top of the stomach tissue from the gastrointestinal cross-section, to confirming that it was indeed numerous, spiral shaped bacteria distinguished by number and type of flagella. Theorize and list all the possible technology he could have used to increase magnification, resolution, and contrast.

microbiology lab experiment: Simple and Differential staining, Bacterial Shapes Why do the slides have to be heat-fixed before staining? What would happen if the slides were not heat-fixed and then stained?

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A patient comes into a hospital and has what appears to be an infection. Your microscope is broken so staining is not an option. Design an experiment to determine if the infection is caused by gram positive or gram negative bacteria.