Grainless plate

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Lippmann plate — The Lippmann plate was an early form of colour photography developed in 1891 by Gabriel Lippmann, a physicist. Lippmann won the Nobel Prize in Physics in 1908 for its development.A glass plate is coated with transparent and grainless silver… … Wikipedia
Collodion — is a flammable, syrupy solution of pyroxylin (a.k.a. nitrocellulose , cellulose nitrate , flash paper , and gun cotton ) in ether and alcohol. There are two basic types; flexible and non flexible. The flexible type is often used as a surgical… … Wikipedia
Abrasive — An abrasive is a material, often a mineral, that is used to shape or finish a workpiece through rubbing which leads to part of the workpiece being worn away. While finishing a material often means polishing it to gain a smooth, reflective surface … Wikipedia
hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… … Universalium

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