Search results
Results from the WOW.Com Content Network
Abacus-based mental calculation (AMC), which was derived from the abacus, is the act of performing calculations, including addition, subtraction, multiplication, and division, in the mind by manipulating an imagined abacus. It is a high-level cognitive skill that runs calculations with an effective algorithm.
In classical architecture, the shape of the abacus and its edge profile varies in the different classical orders. In the Greek Doric order, the abacus is a plain square slab without mouldings, supported on an echinus. [2] In the Roman and Renaissance Doric orders, it is crowned by a moulding (known as "crown moulding").
Objects, such as stones, were added for counting and then columns for place-valued arithmetic. The demarcation between an abax and an abacus seems to be poorly defined in history; [3] moreover, modern definitions of the word abacus universally describe it as a frame with rods and beads [4] and, in general, do not include the definition of "sand ...
Entablatures at Caesarea Maritima Entablature at the Temple of Venus Genetrix, Rome. An entablature (/ ɛ n ˈ t æ b l ə tʃ ər /; nativization of Italian intavolatura, from in "in" and tavola "table") [1] is the superstructure of moldings and bands which lies horizontally above columns, resting on their capitals.
The three sets of Greek symbols arranged along the left, right and bottom edges of the tablet are numbers from the acrophonic system. In the center of the tablet – a set of five parallel lines equally divided by a vertical line, capped with a semicircle at the intersection of the bottom-most horizontal line and the single vertical line.
Tesserae of a mosaic of doves drinking at a golden basin, 1st century AD, National Archaeological Museum, Naples, Italy A tessera (plural: tesserae, diminutive tessella) is an individual tile, usually formed in the shape of a square, used in creating a mosaic.
The two earliest Egyptian capitals of importance are those based on the lotus and papyrus plants respectively, and these, with the palm tree capital, were the chief types employed by the Egyptians, until under the Ptolemies in the 3rd to 1st centuries BC, various other river plants were also employed, and the conventional lotus capital went through various modifications.
The Corinthian order (Greek: Κορινθιακὸς ῥυθμός, Korinthiakós rythmós; Latin: Ordo Corinthius) is the last developed and most ornate of the three principal classical orders of Ancient Greek architecture and Roman architecture. The other two are the Doric order, which was the earliest, followed by the Ionic order. In Ancient ...