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Marble is a metamorphic rock consisting of carbonate minerals (most commonly calcite (CaCO 3) or dolomite (CaMg (CO 3) 2) that have recrystallized under the influence of heat and pressure. [1] It has a crystalline texture, and is typically not foliated (layered), although there are exceptions. In geology, the term marble refers to metamorphosed ...
Marble Sculpture. An ancient Greek marble Trojan archer sculpture from the Temple of Aphaia missing original paint (left), and a re-creation of the same polychromy sculpture based on archaeological remnants of paint found on the marble surface (right) [1] Most ancient European marble sculptures were painted. [2] Lorenzo Bartolini, (Italian ...
A black carbon fibre (used as a reinforcement component) compared to a human hair. Composites are formed by combining materials together to form an overall structure with properties that differ from that of the individual components. A composite material (also called a composition material or shortened to composite, which is the common name) is ...
Mineralogy applies principles of chemistry, geology, physics and materials science to the study of minerals. Mineralogy[n 1] is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy ...
The arts are a vast subdivision of culture, composed of many creative endeavors and disciplines. It is a broader term than " art," which as a description of a field usually means only the visual arts. The arts encompasses visual arts, literary arts and the performing arts – music, theatre, dance, spoken word and film, among others.
Tissue culture is the growth of tissues or cells in an artificial medium separate from the parent organism. This technique is also called micropropagation. This is typically facilitated via use of a liquid, semi-solid, or solid growth medium, such as broth or agar. Tissue culture commonly refers to the culture of animal cells and tissues, with ...
The difference is the type of bond that joins the lipids to the glycerol moiety; the two types are shown in yellow in the figure at the right. In ester lipids this is an ester bond, whereas in ether lipids this is an ether bond. [131] The stereochemistry of the archaeal glycerol moiety is the mirror image of that found in other organisms.
The Two Cultures. " The Two Cultures " [1] is the first part of an influential 1959 Rede Lecture by British scientist and novelist C. P. Snow, which was published in book form as The Two Cultures and the Scientific Revolution the same year. [2][3] Its thesis was that science and the humanities, which represented "the intellectual life of the ...