shadow microscopy

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• shadow-casting — Vacuum evaporation and deposition of a film of carbon or metals such as palladium, platinum, or chromium on a contoured microscopic object in order to allow the object to be seen in relief with the …   Medical dictionary

• shadow-casting — ˈ ̷ ̷ ̷ ̷ˌ ̷ ̷ ̷ ̷ noun : the production of exaggerated contrast in electron microscopy by irradiating the specimen obliquely with a beam of gold atoms which makes opaque films on the slide in exact imitation of shadows …   Useful english dictionary

• Dark field microscopy — (dark ground microscopy) describes microscopy methods, in both light and electron microscopy, which exclude the unscattered beam from the image. As a result, the field around the specimen (i.e. where there is no specimen to scatter the beam) is… …   Wikipedia

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• X-ray microscope — An X ray microscope uses electromagnetic radiation in the soft X ray band to produce images of very small objects. Unlike visible light microscopes, X rays do not reflect or refract easily, and they are invisible to the human eye. Therefore the… …   Wikipedia

• Crystallographic database — A crystallographic database is a database specifically designed to store information about crystals and crystal structures. Crystals are solids having, in all three dimensions of space, a regularly repeating arrangement of atoms, ions, or… …   Wikipedia

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

• Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …   Wikipedia

• Physical Sciences — ▪ 2009 Introduction Scientists discovered a new family of superconducting materials and obtained unique images of individual hydrogen atoms and of a multiple exoplanet system. Europe completed the Large Hadron Collider, and China and India took… …   Universalium