Learning about the microscope Flashcards
What maintains proper distance between lenses?
Body tube
Rotates the objectives?
Revolving nosepiece
The second magnification?
Objective/s lenses
What holds the slide in place?
Stage clips
What regulates the amount of light?
Diaphragm
What reflects the light source towards the eyepiece?
Light source or mirror
The first magnification?
Ocular lens (Eyepiece)
What supports the body tube?
Arm
What supports the slide?
The stage
What focuses the image?
Coarse adjustment knob
What sharpens the image?
Fine adjustment knob
What supports the microscope?
Base
Where is the specimen put?
On the microscope slide
What type of light microscope are we learning about currently?
The compound light microscope
What is a micrograph?
A photograph taken through a microscope
What did scientist use hundreds of years ago to examine specimens?
They used only glass lenses at first
When was the compound microscope made?
In 1590
Who made the first compound microscope?
Hans Janssen and his son Zaccharias
Who improved on Janssen’s design and when?
Robert Hooke in 1665
Who designed single lenses and when?
Anton van Leeuwenhoek in 1674
Anton van Leeuwenhoek’s lenses could only magnify how many times smaller?
270 times
Light microscopes cant magnify more than?
Thousand times
