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  2. Oil immersion - Wikipedia

    en.wikipedia.org/wiki/Oil_immersion

    Oil-immersion objective lenses look superficially identical to non-oil-immersion lenses. In light microscopy , oil immersion is a technique used to increase the resolving power of a microscope . This is achieved by immersing both the objective lens and the specimen in a transparent oil of high refractive index , thereby increasing the numerical ...

  3. Oil painting - Wikipedia

    en.wikipedia.org/wiki/Oil_painting

    Oil painting is a painting method involving the procedure of painting with pigments combined with a drying oil as the binder. It has been the most common technique for artistic painting on canvas , wood panel or copper for several centuries.

  4. Index-matching material - Wikipedia

    en.wikipedia.org/wiki/Index-matching_material

    An oil immersion objective is an objective lens specially designed to be used in this way. The index of the oil is typically chosen to match the index of the microscope lens glass, and of the cover slip. For more details, see the main article, oil immersion.

  5. Conservation and restoration of paintings - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Oil paint is a medium made up of pigments and a drying oil binding agent. Various other ingredients can be mixed in to condition the paint in several ways and modify its various properties and drying. [1] Oil paintings are painted on various surface support types. Oil on canvas, oil on board, and oil on metal are only some examples of oil ...

  6. Utilitarian design - Wikipedia

    en.wikipedia.org/wiki/Utilitarian_design

    According to Pye, in practice the "purely utilitarian" objects are the ones made to fit the purpose at the lowest possible cost, from scaffolding to an oil refinery. In many cases making things more pleasing to the eye incurs no extra cost, and the techniques that result in better appearance are chosen in these cases.

  7. Oil paint - Wikipedia

    en.wikipedia.org/wiki/Oil_paint

    The thickness of the coat has considerable bearing on the time required for drying: thin coats of oil paint dry relatively quickly. The viscosity of the paint may be modified by the addition of a solvent such as turpentine or white spirit, and varnish may be added to increase the glossiness of the dried oil paint film. The addition of oil or ...

  8. Phosphate conversion coating - Wikipedia

    en.wikipedia.org/wiki/Phosphate_conversion_coating

    Iron phosphate coatings are typically used as a base for further coatings or painting and are applied by immersion or by spraying. Zinc phosphate coatings are used for corrosion resistance, as a lubricant-holding layer, and as a paint/coating base and can also be applied by immersion or spraying.

  9. Painting - Wikipedia

    en.wikipedia.org/wiki/Painting

    Oil painting is the process of painting with pigments that are bound with a medium of drying oil, such as linseed oil, poppyseed oil which was widely used in early modern Europe. Often the oil was boiled with a resin such as pine resin or even frankincense ; these were called 'varnishes' and were prized for their body and gloss.

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