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Anton van Leeuwenhoek (1632 to 1723) was a Dutch cloth merchant who made literally hundreds of microscopes. Although compound lenses were invented at that time, they were not yet perfected, and so Leeuwenhoek's microscopes all worked based on a more simple magnification system. Leeuwenhoek's skill as a lens grinder was essential to... more »
Whether you are a kid trying to set leaves on fire with the sun or a person looking for clues, you have most likely encountered a magnifying glass in some shape or form. In the modern world, it's one of those items that people take for granted, as if they've always existed. This article will give you a deeper insight into the world of... more »
Hospitals, government agencies and schools use blood testing clinics to handle a variety of tasks, from drug testing to complete blood counts (CBCs) for health clinics. A blood testing clinic relies on steady business from individuals and corporations to stay alive. Entrepreneurs and nonprofit professionals interested in blood testing... more »
From middle school students in science class to the biologist who studies cells, the microscope is an important tool in seeing a small object more clearly. A compound microscope, which is the most widely used type of microscope, uses two lens systems, the objective lens and the ocular lens, in combination to magnify a small object or... more »
The video microscope is a relatively new addition to the microscope family. By displaying images on a video screen rather than restricting the view to the eyepiece of the microscope, video microscopes have a distinct advantage over traditional models. The video screen allows many people to view images from the microscope at the same... more »
Focusing a microscope properly is key to seeing all the fine detail you expect. A microscope will almost never have the right focus when you first... more »
Microscopes are invaluable tools for biologists, engineers, doctors and other science professionals. Of these vital science tools, the stereo... more »
The microscope, an invention that changed the way humans look at the world, came about through the process of much experimentation. Originating in... more »
A microscope (from the , mikrós, "small" and , skopeîn, "to look" or "see") is an instrument to see objects too tiny for the naked eye. The science of investigating small objects using such an instrument is called microscopy. Microscopic means invisible to the eye unless aided by a microscope.
History
An early microscope was made in 1590 in Middelburg, The Netherlands. Three eyeglass makers are variously given credit: Hans Lippershey (who developed an early telescope); Zacharias Jansen, with the help of his father, Hans Janssen. Giovanni Faber coined the name for Galileo Galileis compound microscope in 1625.Stephen Jay Gould(2000). The Lying Stones of Marrakech, ch.2 "The Sharp-Eyed Lynx, Outfoxed by
ature". London: Jonathon Cape. ISBN 0224050443 (Galileo had called it the "occhiolino" or "little eye".)
The first detailed account of the interior construction of living tissue based on the use of a microscope did not appear until 1644, in Giambattista Odiernas Lochio della mosca, or The Flys Eye. Bad Medicine: Doctors doing harm since Hippocrates. David Wootton. Oxford University Press, 2006.
It was not until the 1660s and 1670s that the microscope was used seriously in Italy, Holland and England. Marcelo Malpighi in Italy began the analysis of biological structures beginning with the lungs. Robert Hookes Microphagia had a huge impact, largely because of its impressive illustrations. The greatest contribution came from Antoni van Leeuwenhoek who discovered red blood cells and spermatozoa. In 9 October 1676 Leeuwenhoek reported the discovery of micro-organisms.see Wootton, David (2006) p119.
The most common type of microscope—and the first invented—is the optical microscope. This is an optical instrument containing one or more lenses producing an enlarged image of an object placed in the focal plane of the lenses.
Types
"Microscopes" can be separated into optical theory microscopes (Light microscope), electr read more at » http://en.wikipedia.org/wiki/Microscope
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