Popular pages

Microscope images

Life Forms
All known life forms are made of cells, the basic units of each living body. Modern science divides life forms into plants, animals, protists, fungi, bacteria and viruses. All living organisms have one main common essential property - evolution. Viruses do not metabolize and are non-cellular, still being included into this category of life forms as they mutate to adapt to the conditions to stay "alive". All life forms with the exception to viruses have cell membranes and are subject to metabolism (ability to process chemical reactions, maintaining life) but thanks to microbiology, virology and molecular biology we are now able to classify non-cellular entities as life forms, this classification though remain controversial. You can take a look at the microscope images below.

Microscope images of bacteria Microscope images of bacteria
You can explore everything under a microscope, the important thing is to prepare a research object and choose the right microscope for it.
 
You can see the shape and structure of cells, calculate the size and number of "grains" in the struture of metals, take images for fun or for science. A photographic study of the processes takes quite a lot of effort and subsequent analysis.
Microscope images of bacteria Microscope images of bacteria

Microscope images of bacteria

Microscopes are indispensable instruments in modern laboratories, no research would be possible without it in any institute or a diagnostic center.
 
The human eye is a natural optical system, characterized by specific resolution, ie the smallest distance between elements of the observed object (perceived as points or lines) where they can still be different from one another. For the normal eye away from the object on Vol. the best distance vision (D = 250 mm), the average normal resolution is 0,176 mm. The size of microorganisms, the majority of plant and animal cells, small crystals, details of the microstructure of metals and alloys, etc., are much less than this value.
 
Until the mid XX century they used only with the visible optical radiation in the range of 400-700 nm, as well as with short-UV (fluorescent microscope). Optical microscopes can not give the resolving power of less than a half-cycle of the reference wave radiation (wavelength range of 0,2-0,7 mm, or 200-700 nm). Thus, an optical microscope is meant to discern the structure with the distance between points to about 0.20 microns, so the maximum increase, which could be achieved was ~ 2000 times.

Under microscope Copyright 2011 privacy policy