WebThe oldest known example of a Corinthian column is in the Temple of Apollo Epicurius at Bassae in Arcadia, c. 450–420 BC. It is not part of the order of the temple itself, which has a Doric colonnade surrounding the temple and an Ionic order within the cella enclosure. A single Corinthian column stands free, centered within the cella.

WebGlycoproteins are proteins which contain oligosaccharide chains covalently attached to amino acid side-chains. The carbohydrate is attached to the protein in a cotranslational or posttranslational modification.This process is known as glycosylation. Secreted extracellular proteins are often glycosylated.. In proteins that have segments extending extracellularly, …

WebA portico is a porch leading to the entrance of a building, or extended as a colonnade, with a roof structure over a walkway, supported by columns or enclosed by walls. This idea was widely used in ancient Greece and has influenced many cultures, including most Western cultures.. Some noteworthy examples of porticos are the East Portico of the United …

WebThe Basilica Cistern, or Cisterna Basilica (Greek: βασιλική κινστέρνή, Turkish: Yerebatan Sarnıcı or Yerebatan Saray, "Subterranean Cistern" or "Subterranean Palace"), is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey.The cistern, located 150 metres (490 ft) southwest of the Hagia Sophia on the historical …

WebIn general, compounds with ionic bonds have high normal boiling points, if they do not decompose before reaching such high temperatures. Many metals have high boiling points, but not all. Very generally—with other factors being equal—in compounds with covalently bonded molecules, as the size of the molecule (or molecular mass) increases, the normal …

WebThe number of valence electrons in an atom governs its bonding behavior. Therefore, elements whose atoms can have the same number of valence electrons are grouped together in the periodic table of the elements.. The most reactive kind of metallic element is an alkali metal of group 1 (e.g., sodium or potassium); this is because such an atom has …

WebA column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below.In other words, a column is a compression member.The term column applies especially to a large round support (the shaft of the column) with a capital and a …

WebSvante August Arrhenius (/ ə ˈ r iː n i ə s, ə ˈ r eɪ n i ə s / ə-REE-nee-əs, -⁠ RAY-, Swedish: [ˈsvânːtɛ aˈrěːnɪɵs]; 19 February 1859 – 2 October 1927) was a Swedish scientist.Originally a physicist, but often referred to as a chemist, Arrhenius was one of the founders of the science of physical chemistry.He received the Nobel Prize for Chemistry in 1903, …

WebMolar concentration (also called molarity, amount concentration or substance concentration) is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution. In chemistry, the most commonly used unit for molarity is the number of moles per liter, …

WebIn chemistry, an ester is a compound derived from an oxoacid (organic or inorganic) in which at least one hydroxyl group (−OH) is replaced by an alkoxy group (−O−R), as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides are fatty acid esters of glycerol; they are important in biology, being one of the main classes of lipids and …