What do we use the
microscope for?*It's used to look at microscopic
particles, those which are not visible to the naked eye.
*It is used by scientists for the study of tissues and cells.
*It is also used in examining forensic evidence obtained from a crime scene
*To study the health of a particular ecosystem.
*It helps in the study of atomic structures.
History
*The first scientist who used the microscope was
Galileo in 1610.
*Between 1660-1665, Marcello Malpighi began to study
the living matter.
*Antony Van Leenwenhoek called “Father of Microscopy”
improved the microscope and saw bacterias, yeast,
blood cells and protozoos.
Eyepiece: Are the lens that the viewer looks through to see the specimen. The eyepiece usually contains a 10X or 15X power lens.
Diopter Adjustment: Useful as a means to change focus on one eyepiece so as to correct for any difference in vision between your two eyes.
*Nosepiece: The viewer spins the nosepiece to select different
objective lenses.
*Objective lenses: One of the most important parts of a
compound microscope, as they are the lenses closest to the
specimen.
*A standard microscope has three, four, or five objective lenses
that range in power from 4X, 10X, 40X and 100X.
Nosepiece
Objective lenses
*Stage: The flat platform where the slide is placed.
*Stage clips: Metal clips that hold the slide in place.
Coarse adjustment: Brings the specimen into general focus.
Fine adjustment: Fine tunes the focus and increases the
detail of the specimen.
Illumination: The light source for a microscope. Most microscopes now use a
low-voltage bulb.
Iris diaphragm: Adjusts the amount of light that reaches the specimen.
Condenser: Gathers and focuses light from the illuminator into the specimen
being viewed.
What can we see with the
microscope?
We can observe differents cells,
microorganisms and another things like
tissues, hair, synthetic fibres, parts of
vegetables, etc.
Materials Required
* Slide (portaobjetos)
* Coverslips (cubreobjetos)
*Immersion liquid (liquido de inmersion)
only with 100x objective lens
http://youtu.be/CgvDrRK2ybg
This is a video about how can we use a microscope.
Bibliography*https://www.google.es/search?hl=es&site=imghp&tbm=isch&source
=hp&biw=1390&bih=897&q=microscoppios&oq=microscoppios&gs_l=
img.3..0i10i24.42314.44958.0.45254.13.10
*http://elprofedebiolo.blogspot.com.es/2010/01/partes-del-
microscopio-optico-y-su.html
*“Fundamentos y Técnicas de Análisis Hematológicos y Citológicos”.
Faustina Rubio Campal y otros. Editorial Thomson-Paraninfo. 2004