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  2. Abacus (architecture) - Wikipedia

    en.wikipedia.org/wiki/Abacus_(architecture)

    1898 illustration of abacuses of many capitals in various styles. In architecture, an abacus (from the Ancient Greek ἄβαξ (ábax), ' slab '; or French abaque, tailloir; pl.: abacuses or abaci) [1] is a flat slab forming the uppermost member or division of the capital of a column, above the bell.

  3. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    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.

  4. Sand table - Wikipedia

    en.wikipedia.org/wiki/Sand_table

    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 ...

  5. Tessera - Wikipedia

    en.wikipedia.org/wiki/Tessera

    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.

  6. Entablature - Wikipedia

    en.wikipedia.org/wiki/Entablature

    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.

  7. Corinthian order - Wikipedia

    en.wikipedia.org/wiki/Corinthian_order

    Proportion is a defining characteristic of the Corinthian order: the "coherent integration of dimensions and ratios in accordance with the principles of symmetria" are noted by Mark Wilson Jones, who finds that the ratio of total column height to column-shaft height is in a 6:5 ratio, so that, secondarily, the full height of column with capital ...

  8. Ancient Greek units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Greek_units_of...

    Ancient Greek units of measurement varied according to location and epoch. Systems of ancient weights and measures evolved as needs changed; Solon and other lawgivers also reformed them en bloc . [ citation needed ] Some units of measurement were found to be convenient for trade within the Mediterranean region and these units became ...

  9. Cymatium - Wikipedia

    en.wikipedia.org/wiki/Cymatium

    The projection of the cymatium beyond the abacus is not to be greater than the size of the diameter of the eye [of the volute]. [ 1 ] In the case of a concave-convex profile, a distinction is made between cyma recta and cyma reversa, with the cyma reversa, the inverted and therefore hanging cyma, being the usual form.