Abacus

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Deutsch: Ein Abakus ist Hilfsmittel zum Ausführen verschiedener Rechenoperationen.
English: An Abacus is a calculation tool.
Galego: Un ábaco é un instrumento de cálculo.
Norsk nynorsk: Ei Kuleramme er eit reknehjelpemiddel.
Русский: Абак, счёты.

Overview[Bearbeiten]

  • Chinese abacus

    Chinese abacus

  • Chinese abacus, big

    Chinese abacus, big

  • Chinese abacus, long

    Chinese abacus, long

  • Chinese abacus

    Chinese abacus

  • Danish abacus from an elementary school.

    Danish abacus from an elementary school.

  • German abacus

    German abacus

  • Japanese soroban

    Japanese soroban

  • Polish abacus

    Polish abacus

  • Reconstruction of a Roman abacus

    Reconstruction of a Roman abacus

  • A Russian abacus

    A Russian abacus

History[Bearbeiten]

Abacus in Ancient pictures[Bearbeiten]

  • 145 AD

    145 AD

  • 177 AD

    177 AD

  • 204 AD

    204 AD

  • 218 AD

    218 AD

  • 236 AD

    236 AD

  • Roman abacus from 1911 Encyclopædia Britannica

    Roman abacus from 1911 Encyclopædia Britannica

  • Reconstruction of Roman Abacus, made by RGZ Museum Mainz in 1977

    Reconstruction of Roman Abacus, made by RGZ Museum Mainz in 1977

Abacus in Medieval pictures[Bearbeiten]

  • Monastic abacus, 10-12th century

    Monastic abacus, 10-12th century

  • End of 13th century

    End of 13th century

  • 1340

    1340

  • 14th century

    14th century

  • 14 - 15th century

    14 - 15th century

  • 1459

    1459

Abacus in 16th century pictures[Bearbeiten]

  • 1504

    1504

  • 1508

    1508

  • 1514

    1514

  • 1525

    1525

  • 1532

    1532

  • 1543

    1543

  • 1544

    1544

  • 1553

    1553

  • 1573

    1573

  • 1574

    1574

  • 1592

    1592

  • Ming Dynasty (1368–1644)

    Ming Dynasty (1368–1644)

  • Rechentisch (Holzschnitt vermutlich aus Straßburg)

    Rechentisch (Holzschnitt vermutlich aus Straßburg)

Abacus in pictures in Modern times[Bearbeiten]

  • 2nd quarter of 17th century

    2nd quarter of 17th century

  • 2nd quarter of 17th century

    2nd quarter of 17th century

  • 1641

    1641

  • 1685

    1685

  • 1884-85

    1884-85

  • 1892

    1892

  • 1899

    1899

  • Early 20th century

    Early 20th century

  • 1914

    1914

  • 1930

    1930

  • 1938

    1938

  • 2007

    2007

  • 2011

    2011

  • Huge Abacus at Guohua Abacus Museum

    Huge Abacus at Guohua Abacus Museum

Specific topics[Bearbeiten]

Abacus in art[Bearbeiten]

  • Rotschild canticles Septem artes liberales, 13th century

    Rotschild canticles Septem artes liberales, 13th century

  • 1504

    1504

  • 1500-50

    1500-50

  • Hokusai, 1760

    Hokusai, 1760

  • early 20th century

    early 20th century

Types of abacus[Bearbeiten]

  • Abacus anagoria

    Abacus anagoria

  • Binary abacus

    Binary abacus

  • Long abacus

    Long abacus

  • Napier's abacus

    Napier's abacus

  • Positional decimal system on abacus

    Positional decimal system on abacus

  • School abacus

    School abacus

  • Sharp abacus

    Sharp abacus

  • Soroban

    Soroban

  • Table football abacus

    Table football abacus

The Small Abacus of Al-Khwarizmi[Bearbeiten]

Addition examples[Bearbeiten]

  • 6

    6

  • + 4

    + 4

  • = 10

    = 10

  • 40

    40

  • +12

    +12

  • =52

    =52

See also[Bearbeiten]

Abgerufen von „https://commons.wikimedia.org/w/index.php?title=Abacus&oldid=650778880“