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The course adjustment knob raises and lowers the stage of the microscope. This knob is mainly used on the scanning and low power knob to simply find the specimen. When trying to focus directly, use the fine adjustment knob.
a microscope measures the size of an object (example: how big an blood cell is)
1. compound microscope has higher magnification power 2. Dissecting is used for studying 'big' objects 3. compound is for looking at cells, etc.
big white holes seen under microscope in RBCs
Micro-organisms- needed in small quality Macro-organisms - needed in big quality
Coarse adjustment knob.
the big knob is called the coarse adjustment knob and the smaller one is the fine adjustment knob coarse does a large scale focus, fine does such small scale focus you can only see a difference in how the (item under microscope) looks. You don't see the stage / nosepeice move up or down.
The final focus? Its used for final focusing of the specimen.
The difference is in the gearing of the knobs. A big movement of the fine knob is equivalent to a small movement of the coarse knob.
Before you turn it on, make sure there is no damage to the miroscope. Then make sure to always start on the lowest (or smallest) objective lens. Make sure to use the coarse focus knob (the big one) on the lowest objective then the fine adjustment knob only (the small one) on the higher objectives.
The course adjustment knob raises and lowers the stage of the microscope. This knob is mainly used on the scanning and low power knob to simply find the specimen. When trying to focus directly, use the fine adjustment knob.
Click on the eye piece (when you are big) or on the microscope slide (when you are small) to see C.J.'s warning note.
basically, telescopes look at big things far away. microscopes look at small things up close.
It would be difficult to focus, a small movement would make a big difference
They are called characatures
nope, in fact its so small people need a microscope to see it. and every woman is left unpleased or satisfied.
the specimen is the objective the microscope and a parts of microscope