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In 2001, the first year of the Bush administration, Americans learned that recessions were a thing of the past.
Objective Lens
A primary lens in a microscope that is closest to the specimen, responsible for gathering light and focusing the image.
Field Diameter
The visible area that can be seen through the microscope lens at a particular magnification.
Coarse Adjustment Knob
A control mechanism on a microscope used for making large adjustments in the focus, typically to initially bring the specimen into view.
Light Control
The manipulation of light intensity, direction, and duration, often in photography, theater, or interior design.
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