The microscope has revolutionized medical science perhaps more than any other single piece of technology. Simply put, modern understanding of health and illness-and of life itself-would be impossible without microscopes. Medical historians D.H. Kruger,...

Historical records indicate that around the time of Christ the ancient Assyrians first realized that glass spheres could be used as magnifying devices. Claudius Ptolemy, a second-century mathematician and astronomer in Alexandria, wrote a paper on the...

A microscope magnifies and resolves the image of an object that otherwise would be invisible to the naked eye. These objects include such items as human skin, the eye of a fly, cells of a living organism, viruses, individual molecules, and atoms. The...

Microscopes magnify images so that we can see things that otherwise would be invisible with the naked eye. The most common type, light microscope, uses glass lenses to focus light and create a high resolution image. Some light microscopes collect light...

Although it takes the magnifying and resolution power of the electron microscope to visualize strands of DNA, grosser(larger) genetic structures such as chromosomes are, with proper staining, visible with the magnifications attainable with a simple...

Microscopes have been in use in various forms for more than 3,000 years. The first types were extremely simple magnifiers made of globes of water-filled glass or chips of transparent crystal. Ancient Romans were known to use solid, bead-like glass...

Microscopes have been in use in various forms for more than 3,000 years. The first types were extremely simple magnifiers made of globes of water-filled glass or chips of transparent crystal. Ancient Romans were known to use solid, bead-like glass...

Microscopes have been in use in various forms for more than 3,000 years. The first types were extremely simple magnifiers made of globes of water-filled glass or chips of transparent crystal. Ancient Romans were known to use solid, bead-like glass...

Instrument that produces enlarged images of small objects, allowing them to be viewed at a scale convenient for examination and analysis. Formed by various means, the image is received by direct imaging, electronic processing, or a combination of these...

An instrument used to obtain an enlarged image of a small object, utilizing visible light; in general, it consists of a light source, a condenser, an objective lens, and an ocular or eyepiece that can be replaced by a recording device. Also known as a...

An optical instrument consisting of a combination of lenses that allows the operator to view a magnified image of a small object (Figure...

A microscope (Greek: μικρÏν (micron) = small + σκοπεá¿ν (skopein) = to look at) is an instrument for viewing objects that are too small to be seen by the naked or unaided eye. The science of investigating small objects using such an...