linseed oil

Examples of linseed oil in the following topics:

• Encaustic

  • The simplest encaustic mixture can be made from adding pigments to beeswax, but there are numerous recipes that can be used, such as other types of waxes, damar resin, or linseed oil.

• Oil

  • Oil painting is the most commonly used of all the painting mediums and involves painting with pigments that have been mixed with an oil binder.
  • Oil painting is the most commonly used painting medium and involves painting with pigments that have been mixed with an oil binder.
  • The binder oils used most often include linseed, poppyseed, walnut, and safflower oil.
  • Oil can also be used as the vehicle when painting, in addition to turpentine or mineral spirits.
  • It was believed that oil painting developed in Europe in the 15th century; however, recent scholars have noted the use of oil-based paints in Afghanistan as early as the 7th century.

• Oil Painting

  • Oil painting did not gain popularity in Europe until the fifteenth century.
  • Oil painting is the process of painting with pigments bound with a medium of drying oil.
  • An oil like linseed would be boiled with a resin (pine resin or frankincense), resulting in "varnishes" prized for their body and gloss.
  • Giorgione's The Tempest is one of the most famous Venetian oil paintings of the 16th century.
  • Compare and contrast oil painting with earlier techniques, such as tempera.

• Stem Anatomy

  • The (c) flax plant is grown and harvested for its fibers, which are used to weave linen, and for its seeds, which are the source of linseed oil.

• Oil

  • Oil remains a major energy source in the U.S., and changing this reliance requires political initiative.
  • The oil crisis contributed to recessions in the country.
  • This is in part because of the strength of the oil and energy lobby in the US.
  • Two concerns over the influence of oil companies on energy policy are ongoing environmental consequences and the political impacts of a reliance on oil.
  • During the 1970s there were oil shortages in the US.

• Energy and Environmental Reform

  • Carter's Energy Crisis responses included deregulation of American oil production, leading to an increase in American oil production.
  • Deregulating domestic oil price controls allowed U.S. oil output to rise sharply from the Prudhoe Bay fields, although oil imports fell sharply.
  • In 1980, following the outbreak of the Iran–Iraq War, oil production in Iran nearly stopped, and Iraq's oil production was severely cut as well.
  • The oil crisis had mixed effects in the United States, due to some parts of the country being oil-producing regions and other parts being oil-consuming regions.
  • During the 1973 Oil Crisis Richard Nixon imposed price controls on domestic oil, and the resulting shortages caused gas lines.

• The Discovery of Oil in the Middle East

• The Millikan Oil-Drop Experiment

  • In 1911, using charged droplets of oil, Robert Millikan was able to determine the charge of an electron.
  • The Oil-Drop Experiment, otherwise known as the Millikan Oil-Drop Experiment, is one of the most influential studies in the history of physical science.
  • Millikan designed his experiment to measure the force on oil droplets between two electrodes.
  • He used an atomizer to spray a mist of tiny oil droplets into a chamber, which included a hole.
  • Special oil for vacuum apparatus is sprayed into the chamber, where drops become electrically charged.

• Prokaryotes and Environmental Bioremediation

  • Some species, such as Alcanivorax borkumensis, produce surfactants that solubilize the oil, whereas other bacteria degrade the oil into carbon dioxide.
  • In the case of oil spills in the ocean, ongoing, natural bioremediation tends to occur if there are oil-consuming bacteria in the ocean prior to the spill.
  • (a) Cleaning up oil after the Valdez spill in Alaska, workers hosed oil from beaches and then used a floating boom to corral the oil, which was finally skimmed from the water surface.
  • Some species of bacteria are able to solubilize and degrade the oil.
  • (b) One of the most catastrophic consequences of oil spills is the damage to fauna.

• Millikan's Oil Drop Experiment

  • The oil drop experiment calculated the charge of an electron using charged oil droplets suspended in an electric field.
  • The figure below shows a simplified scheme of Millikan's oil drop experiment.
  • Ordinary oil would evaporate under the heat of the light source, causing the mass of the oil drop to change over the course of the experiment.
  • A fine mist of oil droplets was sprayed into a chamber above the plates.
  • Robert Millikan and Harvey Fletcher used the oil drop experiment.