Whats a Transmission electron microscope?

Question

also, whats a Scanning Electron Microscope?

Answer 1

here try these

http://www.unl.edu/CMRAcfem/temoptic.htm

http://www.mos.org/sln/SEM/

Answer 2

A transmission electron microscope is commonly called a TEM. The TEM passes electrons through a specimen allowing us to see the tiny details inside the specimen. This is good for seeing parts of cells.

A scanning electron microscope is commonly called an SEM. The SEM bounces electrons off the surface of a specimen forming an image that shows the tiny details of the surface texture and shape of a specimen. This is good for seeing the outside of an insect, the shape and texture of various cells, ...

Memory trick
TEM sees Through something.
SEM sees Surface of something.

Answer 3

1. With a dissecting microscope and with a scanning EM, you can study the surface of a specimen. The light (or beam of electrons) does not pass THROUGH the specimen, only onto its surface. 2. A regular microscope is a transmission microscope, because the light passes through the specimen - just as the electron beam does in a transmission EM.