what are the diff. types of microscopes? plsss... give me some answer!!!?
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Here are just a few:\n\nSimple light\nCompound light\nDisecting light\nConfocal\nScanning electron\nTransmission electron\n\nI'm sure you could do a Google search on "microscopes" and find what you're looking for.
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Olympus is much better. In terms of upgradeability, service and durability. For vets, I recommend the CX31 or 41. You can have a phase contrast attachment for live cell microscopy. Also, you can opt to have a trinocular tube which can be connected to camera.\n\np.s. what country do you live in? i can recommend an olympus dealer.
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electron microscope\nn.\nAny of a class of microscopes that use electrons rather than visible light to produce magnified images, especially of objects having dimensions smaller than the wavelengths of visible light, with linear magnification approaching or exceeding a million (10 to th power 6).\n\nA device that uses electrons instead of light to form images of very small objects, such as individual parts of small living things. \n\na microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light\n\nThe electron microscope is a microscope that can magnify very small details with high resolving power due to the use of electrons as the source of illumination, magnifying at levels up to 2,000,000 times. \n\nHistory \nThe first electron microscope was built by the German physicist Ernst Ruska. He knew that electrons possess a wave aspect, so he believed he could treat them in a fashion similar to light waves. Ruska was also aware that magnetic fields could manipulate electrons, possibly focusing them as optical lenses do to light. After confirming these principles through research, he set out to design an electron microscope. Ruska had deduced that an electron microscope would be much more powerful than an ordinary optical microscope, because he knew that magnification increased with shorter wavelengths. Since electron waves were shorter than ordinary light waves, it followed that they would allow for greater magnification. In 1933 Ruska and a collaborator, German physicist Max Knoll, under whom he obtained his doctorate, built the first crude electron microscope. Despite the fact that it was primitive and not fit for practical use, the instrument was still capable of magnifying objects 400 times. Ruska was later awarded the Nobel Prize in 1986 for its invention. \n\nThe first practical electron microscope was built by Eli Franklin Burton and students, Cecil Hall, James Hillier and Albert Prebus, at the University of Toronto, Canada in 1938. \n\nAlthough modern electron microscopes can magnify an object 2 million times, they are still based upon Ruska's prototype and his correlation between wavelength and magnification. The electron microscope is an integral part of many laboratories. Researchers use it to examine biological materials (such as microorganisms and cells), a variety of large molecules, medical biopsy samples, metals and crystalline structures, and the characteristics of various surfaces. \n\nTypes \nElectron beam micmroscopes \nTransmission Electron Microscope (TEM) \nThe Transmission Electron Microscope (TEM) involves a high voltage electron beam emitted by a cathode and formed by magnetic lenses. The electron beam that has been partially transmitted through the very thin (and so semitransparent for electrons) specimen carries information about the inner structure of the specimen. The spatial variation in this information (the "image") is then magnified by a series of magnetic lenses until it is recorded by hitting a fluorescent screen, photographic plate, or light sensitive sensor such as a CCD (charge-coupled device) camera. The image detected by the CCD may be displayed in real time on a monitor or computer. \n\nResolution of the high-resolution TEM (HRTEM) is limited by spherical and chromatic aberration, but a new generation of aberration correctors has been able to overcome spherical aberration. Software correction of spherical aberration has allowed the production of images with sufficient resolution to show carbon atoms in diamond separated by only 0.89 ångström (89 picometers) and atoms in silicon at 0.78 ångström (78 picometers) at magnifications of 50 million times. The ability to determine the positions of atoms within materials has made the HRTEM an indispensable tool for nano-technologies research and development in many fields, including heterogeneous catal
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you have microtubules, microfilaments, intermediate filements and microtrabecular system. these are vastly different from each other. do you have any more specific question?
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For sure www.scientificsonline.com. I found it to be a very fun and curious web site! Items ranging from inexpensive to really pricey.  But alas,...they have a Clearance section!!  Another one I happened upon is www.scienceartandmore.com.  They offer a vast array of items listed by category.  Simple, laid back.  Just depends on what peaks your interest and/or need.  Definitely reasonably inexpensive to some being a bit more high dollar.  Just surf the internet on science toys and you will no doubt find the web site/s that will indeed tickle your fancy.  Have fun!
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Microbiologists use instruments that either observe cells in and out of culture or are used to examine at various levels of the internal structure of cells.  Here is a partial list\n\npH meter\n\nmicroscopes of various kinds\nregular optical\nconfocal\ndual photon\nphase contrast\n\nspectrometers\ninfrared\nUV - VIS\nNMR/MRI\nX ray, scanning electron microscope\n\nprobe microscopes\ntunneling electron microscope\n\natomic force microscopes\n\ncell counters\ncell separators/sorters\n\nelectrophoresis\nSDS-PAGE\nNorthern blot\nWestern blot\n\ncentrifuges\nslower speeds separate cells and larger cell structures\nhigher speeds separate internal parts and smaller cell structures\n\nchromatography/chromatographs\nliquid-liquid with spectrometer attached\nliquid-solid with spectrometer attached\nfractionators attached before or after spectrometers\n\ncomputers\ngathering data and for simulations\ninformatics\nmodeling\n\nradiation counters, usually for beta emitters\nscintillation
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Try a Yahoo search for parts of a microscope\n\nFound several sites that look useful:\n\nAn online "flashcard" quiz to practice naming the parts:\n\nhttp://biologycorner.com/microquiz/\nhttp://www.cas.muohio.edu/~mbi-ws/microscopes/microscopeparts.html\n\n\nDiagrams with labels:\n\nhttp://www.usoe.k12.ut.us/curr/science/sciber00/7th/cells/sciber/micrpart.htm\nhttp://www.middleschoolscience.com/scope.htm
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Most microscopes for fluorescent techniques can also be used for regular optical viewing.  Just make sure that the exact model you get has both types of light sources that you require.
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There are many different types of lenses. Here's a site with good information.
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lol\ni did this assignment before. i also had to research in on line because it was gong to be in my exams\n\nit really easy\n\nyou got to yahoo search engine and type microscope and click image search. you will find tons of microscope pictures from the very basic hand drawn kinds to state of the art compound electron microscope
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Well, I don't think it was discovered, but rather developed (or invented)... here's a quote:\n\nPrior to 1930, all microscopes were optical. In 1931, German physicist Ernst Ruska developed the electron microscope that used a beam of moving electronics to illuminate an object instead of light. Magnetic lenses or electric coils produce magnetic fields to deflect the electrons in the same manner that glass lenses bend light rays. The specimen has to be in a vacuum, however, because electrons cannot travel through air. Electron microscopes give point-to-point resolutions of less than 0.2 nanometers. This high resolution permits the direct visualization of many molecules and some atoms.
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http://inventors.about.com/od/mstartinventions/a/microscope.htm
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try this:\n\nhttp://www.ritsumei.ac.jp/~akitaoka/index-e.html\n\nhttp://www.archimedes-lab.org/index_optical.html
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I think the last 2 questions may refer to breakage problems. Since objectives are different lengths, switching from a shorter to a longer one could damage the slide and any part of the lens that protrudes. I guess you'd want to be off the microscope and looking at the slide and objective from the side when you change, to ensure clearance. When you stow the microscope, I'd have the shortest lens in place and the tube cranked all the way up.
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This site has over 29 FREE pics of themometers!  I hope this helps!\n\n:-)
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Coarse adjustment is used to focus the image on the microscope under low or medium power by using larger motions of the lens. (Note: Coarse adjustment should never be used during High power)\n\nFine adjustment is used to focus the image on the microscope of only high power by using very tiny motions of the lens.
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A good dissection microscope with magnification ranges from 5x to 40x is what you are looking for.  Magnifications higher than 40x are useless for most work.  Binocular microscopes are a must for intense study.  One with its own light source is also a must.  Unlike regular microscopes, the light source on a dissection microscope should shine above the specimen not underneath. \n \nAs to brands, most companies that work with optics (Olympus, Nikon, Leica, etc) also make microscopes.  Just be warned, if you are thinking about a professional dissection microscope for your daughter, be ready to dish out anywhere from $500 to $2000 depending on the quality and features... shop around.