Soroban, Japanese, 1975-1978.

Made:
1975-1978 in Japan
Soroban, Japanese abacus with coloured plastic beads. Soroban, Japanese abacus with coloured plastic beads.

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Soroban, Japanese abacus with coloured plastic beads.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Soroban, Japanese abacus with coloured plastic beads.
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Soroban, Japanese abacus with coloured plastic beads in cardboard case.

Soroban, Japanese abacus with coloured plastic beads in cardboard case, 1975-1978. The soroban has 1 bead above the bar and 4 beads below. It is used for calculations in base 10. The soroban was developed from the Chinese abacus which had 2 beads above the bar and 5 below for working in base 16.

Details

Category:
Mathematics
Object Number:
1978-112
type:
soroban, japanese, 1975-1978.
credit:
Prof. Dr. E.M. Bruins

Parts

Soroban, Japanese abacus with coloured plastic beads

Soroban, Japanese abacus with coloured plastic beads

Soroban, Japanese abacus with coloured plastic beads.

Measurements:
overall: 15 mm x 115 mm x 50 mm, 0.05 kg
Materials:
plastic (unidentified) and bamboo
Object Number:
1978-112 Pt1
type:
abacus (japanses)
Cardboard case for Soroban

Cardboard case for Soroban

Cardboard case for Soroban, Japanese abacus with coloured plastic beads.

Object Number:
1978-112 Pt2
type:
abacus (japanese)