The Microscope Flashcards
Microscope is the combination of two words: “micro” meaning ______ and “scope” meaning ______.
small
view
What year is this? Anton van Leeuwenhoek grinded lenses to achieve greater magnification which he utilized to make a microscope, enabling detailed observations to be made of bacteria.
1674
What year is this? Salvino D’ Armate from Italy made the first eye glass, providing the wearer with an element of magnification to one eye, especially to those people with blurry eyes.
12th Century
What happened in 1931 in the history for microscope?
Ernst Ruska starts to build the first electron microscope.
What happened in 1st century in the history for microscope?
Romans experimented with glass and found objects appeared larger when viewed. Reading Stone: The first vision instrument.
What year is this? Joseph Jackson Lister created an achromatic lens to eradicate the chromatic effect caused by different wavelengths of light.
1826
What year is this? Galileo Galilei developed a compound microscope with convex and a concave lens.
1609
What happened in 1665 in the history for microscope?
Robert Hooke’s book called Micrographia officially documented a wide range of observations through the microscope.
What year is this? Two Dutch spectacle makers, Zacharias Jansen and his father Hans, started experimenting by mounting two lenses in a tube, the first compound microscope.
1590
In the 1st Century, only lenses were used and that is called?
Reading stone
In 12th Century, a small stone or a single lens was built to be attached to?
One eye
When is two lenses developed?
1590
A book written by Robert Hooke which serves as the landmark of the studies and depictions of the natural world’s smallest objects (cannot be seen by the naked eye).
Micrographia
Robert Hooke first experimented with a _____ and he observed the meniscus structure of those pieces in the cork — leading to his discovery of the ______.
bottle cork
cells
He called the “Father of Microscopy.”
Anton van Leeuwenhoek
Anton van Leeuwenhoek founded the first simple microscope and first person to see and describe what elements?
bacteria, protozoa, yeast, and sperm.
This is used for viewing viruses (requires specialized microscopes so cannot be seen in simple microscopes).
Electron Mircoscope
The oldest and simplest type of microscope.
Optical Microscope
Types of Lens System
Simple and Compound Microscope
The different Optical Technique
- Bright Field
- Dark Field
- Phase Contrast
- Interference Fluorescence
What are the optical techniques that were adapted to the bright field microscope?
Dark Field and Phase Contrast
The bright field’s condenser was changed into a ________.
Dark Field Condenser
__________ with matching objective was used for the phase contrast microscope.
The phase contrasting condenser
This optical technique is looking at a specific object in a light background.
Bright Field
This optical technique is looking at a light object in a dark background, has an opaque disk.
Dark Field
A 3D dimension appearance of the object.
Interference Fluorescence
A single lens traditionally called a loupe.
Simple Microscope
Simple microscope uses natural light is the source to see the object. Therefor if there is no ____, the object will not be visible.
Sun
Simple microscope’s ______ is not present, and _______ is not adjustable.
condenser
magnification
The “simple microscope” or magnifying glass reached its highest state of perfection, in the ______, in the work of Anton van Leeuwenhoek who was able to see __________ and even some larger bacteria.
1600s
single-celled animals (animalcules)
It is most commonly used microscope. Its light is illuminated — it has its own source of light.
Compound Microscope
Compound Microscope is often referred to as a __________.
Biological microscope
What type of lens compound microscope uses to magnify images?
compound lens system
What are the objectives of compound microscope and its magnification?
Scanner - 4x
LPO - 10x
HPO - 40x
OIO - 100x
Used to manipulate, probe, and separate tissues in delicate or small areas.
Dissecting Microscope
Dissecting Microscope is also known as?
Stereoscopic microscope