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  2. Soroban - Wikipedia

    en.wikipedia.org/wiki/Soroban

    A suanpan (top) and a soroban (bottom). The two abaci seen here are of standard size and have thirteen rods each. Another variant of soroban. The soroban is composed of an odd number of columns or rods, each having beads: one separate bead having a value of five, called go-dama (五玉, ごだま, "five-bead") and four beads each having a value of one, called ichi-dama (一玉, いちだま ...

  3. Roman abacus - Wikipedia

    en.wikipedia.org/wiki/Roman_abacus

    The longer slot with five beads below the Ө position allowed for the counting of 1/12 of a whole unit called an uncia (from which the English words inch and ounce are derived), making the abacus useful for Roman measures and Roman currency. The first column was either a single slot with 4 beads or 3 slots with one, one and two beads ...

  4. Abacus - Wikipedia

    en.wikipedia.org/wiki/Abacus

    The Song dynasty and earlier used the 1:4 type or four-beads abacus similar to the modern abacus including the shape of the beads commonly known as Japanese-style abacus. [28] In the early Ming dynasty, the abacus began to appear in a 1:5 ratio. The upper deck had one bead and the bottom had five beads. [29]

  5. Suanpan - Wikipedia

    en.wikipedia.org/wiki/Suanpan

    The suanpan is a 2:5 abacus: two heaven beads and five earth beads. If one compares the suanpan to the soroban which is a 1:4 abacus, one might think there are two "extra" beads in each column. In fact, to represent decimal numbers and add or subtract such numbers, one strictly needs only one upper bead and four lower beads on each column.

  6. Abacus seeds - Wikipedia

    en.wikipedia.org/wiki/Abacus_seeds

    Abacus seeds (Chinese: 算盘子) or abacus beads is a Hakka Chinese dish consisting of dimpled, disc-shaped dumplings made with taro and tapioca flour. The dumplings are boiled then stir-fried with minced pork, shiitake or wood ear mushrooms , dried shrimp , dried cuttlefish and firm bean curd .

  7. Smartwatch and fitness tracker bands have elevated levels of ...

    www.aol.com/lifestyle/smartwatch-fitness-tracker...

    Smartwatches are a hot-ticket gift over the holidays, but a new study might have you rethink how you strap the device to your wrist in the future.

  8. Jets cornerback D.J. Reed calls out officiating after 26-21 ...

    www.aol.com/sports/jets-cornerback-d-j-reed...

    After the New York Jets had a tough 26-21 loss to the Seattle Seahawks on Sunday, Jets cornerback D.J. Reed is pointing a finger at the officials.. The Jets, who failed to score after halftime ...

  9. Abacus (architecture) - Wikipedia

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

    The first abacus pictured below (fig. 5) is decorated with simple mouldings and ornaments, common during the 12th century, in Île-de-France, Normandy, Champagne, and Burgundy regions, and from the choir of Vézelay Abbey (fig. 6). Figure 7 shows a circular abacus used at windows in the side chapels of Notre Dame de Paris. Towards the end of ...

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