the rotating part of the body tube; holds the objrctives
You can not see any microscopic organisms on your nose but they are there, perhaps up to 100 species.
the nose piece turns the objectives to see differnent levels of maginitude to see your specimen
The nose piece on a microscope holds and rotates multiple objective lenses. By rotating the nose piece, different objective lenses can be easily selected for viewing specimens at different magnifications.
Particulates
Yes, the nosepiece of a microscope is also referred to as the "nose turret" or "revolving nosepiece".
There shouldn't be a back piece.... You should either have a hoop( segment ring or CBR) or a nose screw. Neither of which have a back piece
no its not the last nose job took a piece of his ear to make a nose
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Because they stop microscopic particles lile pollen and dust getting into your lungs.