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Cedar oil, also known as cedarwood oil, is an essential oil derived from various types of conifers, most in the pine or cypress botanical families. It is produced from the foliage, and sometimes the wood, roots, and stumps left after logging of trees for timber. It has many uses in art, industry, and perfumery, and while the characteristics of ...
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 aperture of the objective lens. Without oil, light waves reflect off the slide specimen ...
Cedrol is a sesquiterpene alcohol found in the essential oil of conifers (cedar oil), especially in the genera Cupressus (cypress) and Juniperus (juniper). It has also been identified in Origanum onites, a plant related to oregano. [3] Its main uses are in the chemistry of aroma compounds. [4]
The leaves are needle-like, mostly 2.5–5 centimetres (1–2 inches) long, occasionally up to 7 cm (3 in) long, slender (1 millimetre or in thick), borne singly on long shoots, and in dense clusters of 20–30 on short shoots; they vary from bright green to glaucous blue-green in colour. The female cones are barrel-shaped, 7–13 cm (–5 in ...
Aromatherapy is a practice based on the use of aromatic materials, including essential oils and other aroma compounds, with claims for improving psychological well-being. [1][2][3] It is used as a complementary therapy or as a form of alternative medicine, and typically is used via inhalation and not by ingestion. [2]
Optical microscope. The optical microscope, also referred to as a light microscope, is a type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects. Optical microscopes are the oldest design of microscope and were possibly invented in their present compound form in the 17th century.
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The ships in this class have a small capacity to carry and transfer fresh and frozen foods as well as other materials, and have two dry cargo transfer rigs. Patuxent, Laramie, and Rappahannock differ from the other 15 ships, in having double hulls to meet the requirements of the Oil Pollution Act of 1990. Hull separation is 6 feet (1.8 m) at ...