however for some women there are consequences and some are more serious than others weight gain this is a fairly common occurrence with period related water retention some women will not gain anything at all but on average the typical woman will gain 1 6 pounds however it could be as many as 10 pounds for other women
1 The history, development and use of the light and electron microscope 3 star(s) Electron microscope also helps us to see deep into the specimen and view the organells. Scientists have taken advantage over this by breaking up cells to get organells and find their functions and properties. 2  Microscopy.
The most common is the optical microscope, which uses light to image the sample. Other major types of microscopes are the electron microscope, the ultramicroscope, and the various types of scanning probe microscope. Circa 1000AD â The first vision aid was invented (inventor unknown) called a reading stone.