Japanese abacus interactive, Science Museum, April 2001.

Japanese abacus interactive model from the 'Getting Your Sums Right' exhibition, Science Museum, London, April 2001. Getting Your Sums Right consists of three cases: 'Napier's bones', 'Mechanical counter' and 'Japanese abacus'. Each case has its own interactive exhibit positioned in front of it. These interactives were designed and fabricated by the Science Museum's Interactive Development Unit.