of the microscope in the
late 1500's allowed us to see into the microscopic world
that was until
then invisible to the naked eye.
Try to guess what
microscope works by gathering light from a light source. The
can either be a small light bulb or a mirror reflecting light
from an outside source. As light
passes through the object, the first lens it reaches are the
lenses on the nosepiece. These are called the objective lenses.
These objective lenses
. But then there is a lens that you look into. This is called
the eyepiece. The eyepiece also magnifies the image. The specimen
is magnified by two lenses. Therefore,
when you are computing the total magnification of a specimen
you must multiply the objective lens X the eyepiece. The eyepiece
magnification is usually 10 times (X) but then you multiply
that by the number on the objective lens (usually 4x, 10X,
For example, if
you were looking at a specimen using the high-power objective
lens of (43X), with an eyepiece of a 10X, the total magnification
would be 430X. That means that the specimen is being magnified
times its original size.
This is REALLY COOL>
Here to be transported
to a web site where you can see dust mites, human hair, and
other really cool things magnified 1,000,000. You choose how
much to magnifiy the speciman.
here to use a virtual electron microscope. There you will be
able to see mold, a spider's eye, and bone cells.