when a person is very depressed and wants nothing to do with anything or anyone
mechanical stage adjustment knobs
The adjustment that moves the microscope stage up and down is called the coarse focus adjustment or focusing knob. It is used to bring the specimen into initial focus by adjusting the distance between the objective lens and the stage.
The stage height adjustment in a microscope allows the user to focus on different layers of a specimen by moving the slide closer or farther away from the objective lens. This adjustment helps in obtaining sharp and clear images of the specimen at different depths.
The stage adjustment knob is used to move the stage horizontally or vertically to position the specimen under the objective lens for viewing. It helps in focusing the specimen and adjusting its position on the microscope slide.
The stage of the microscope, where the specimen is placed, does not move when the adjustment knob is turned. Instead, the focus of the microscope is adjusted by moving the stage up and down by use of the adjustment knob.
The coarse adjustment knob moves the stage up and down quickly, while the fine adjustment knob allows for precise focusing.
move the stage up and down slowley.
The coarse adjustment knob elevates the microscope's stage up and down quickly. The fine adjustment knob does the same thing but more slowly and accurately. In other words, the fine adjustment knob should require more revolutions to elevate the stage as much as the coarse adj. knob does.
There are two adjustment knobs (coarse and fine) on a microscope so you can move the stage at two different speeds. The coarse moves a lot per revolution, while the fine adjustment knob moves the stage at such small increments that it is nearly impossible to notice when looking from the side. The coarse adjustment knob should be used to get the stage closer to the lens only while you are looking at the microscope from the side. The fine adjustment knob can be used when you are looking into the microscope because there is a much lower chance of running the stage into the lens and breaking it.
When turning the coarse adjustment on a microscope upwards or downwards, the distance between the tube and the stage changes. This changes the detail of what you can see of the specimen you are examining.
The coarse adjustment knob elevates the microscope's stage up and down quickly. The fine adjustment knob does the same thing but more slowly and accurately. In other words, the fine adjustment knob should require more revolutions to elevate the stage as much as the coarse adj. knob does.
The coarse adjustment is used to focus in on the specimen. It accomplishes this by moving the stage or the upper part of the microscope.