IMPORTANT MICROSCOPY SKILLS: Calculating Total Magnification: Mulitply the Eyepiece Lens by the Objective Lens. TASK: Complete the table below. Drawing a microscope image:
Estimating the size of microscopic structures:
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The advancement of miscroscopy has catapulted human's journey towards understanding cells.
TASK: Read and take notes on these articles: The Compound Light Microscope: There are commonly binocular (having two eyepieces). They combine the power of lenses and light to enlarge the subject being viewed. The eyepiece allows for 10X or 15X magnification and when combined with the three or four objective lenses produce higher magnification to a maximum of around 1000X generally.
Stereo microscope: These can also be called dissecting microscopes. Stereo microscopes magnify at low power, typically between 10X and 200X, generally below 100x. Electron Microscope (EM): A powerful microscope allowing researchers to view a specimen at nanometer size. The transmission electron microscope (TEM), the first type of EM, is capable of producing images 1 nanometer in size. A second type of electron microscope is the scanning electron microscope (SEM) are approximately 10 times less powerful than TEMs, they produce high-resolution, sharp, black and white 3D images. |