Learning about the microscope Flashcards

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1
Q

What maintains proper distance between lenses?

A

Body tube

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2
Q

Rotates the objectives?

A

Revolving nosepiece

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3
Q

The second magnification?

A

Objective/s lenses

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4
Q

What holds the slide in place?

A

Stage clips

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5
Q

What regulates the amount of light?

A

Diaphragm

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6
Q

What reflects the light source towards the eyepiece?

A

Light source or mirror

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7
Q

The first magnification?

A

Ocular lens (Eyepiece)

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8
Q

What supports the body tube?

A

Arm

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9
Q

What supports the slide?

A

The stage

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10
Q

What focuses the image?

A

Coarse adjustment knob

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11
Q

What sharpens the image?

A

Fine adjustment knob

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12
Q

What supports the microscope?

A

Base

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13
Q

Where is the specimen put?

A

On the microscope slide

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14
Q

What type of light microscope are we learning about currently?

A

The compound light microscope

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15
Q

What is a micrograph?

A

A photograph taken through a microscope

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16
Q

What did scientist use hundreds of years ago to examine specimens?

A

They used only glass lenses at first

17
Q

When was the compound microscope made?

A

In 1590

18
Q

Who made the first compound microscope?

A

Hans Janssen and his son Zaccharias

19
Q

Who improved on Janssen’s design and when?

A

Robert Hooke in 1665

20
Q

Who designed single lenses and when?

A

Anton van Leeuwenhoek in 1674

21
Q

Anton van Leeuwenhoek’s lenses could only magnify how many times smaller?

A

270 times

22
Q

Light microscopes cant magnify more than?

A

Thousand times