Set of 76 green and 124 brown chicken shaped pieces of cardboard

Made:
1974-1980 in United Kingdom
designer:
Roger Penrose

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Set of 76 green (small) and 124 brown (large) chicken shaped cardboard tiles designed by Professor R Penrose, which
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Set of 76 green (small) and 124 brown (large) chicken shaped cardboard tiles designed by Professor R Penrose, which
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Set of 76 green (small) and 124 brown (large) chicken shaped cardboard tiles designed by Professor R Penrose, which
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Seventy six and one hundred and twenty four cardboard pieces shaped like and illustrated with a chicken, and an oblong card illustrated with a bird on one side and an amorphous shape on the other, designed by Professor Roger Penrose, United Kingdom, 1974-1980. The cardboard pieces tile the plane non-periodically.

While sitting in a hospital waiting room visiting a sick friend, Roger Penrose began ‘doodling’. He came up with two shapes – ‘kites’ and ‘darts’ – which could tile a plane, but non-periodically. Martin Gardner, a leading populariser of recreational maths, described this tiling, which became known as ‘Penrose’, in 1977. Starting with the division of a pentagon, Penrose ends up with two sorts of ‘chickens’. It has since been pointed out that some Islamic patterns contain this non-periodic tiling. About ten years after Penrose’s work it was discovered that metallic alloys had a similar ‘quasi-crystalline’ structure

Details

Category:
Mathematics
Object Number:
1981-884
Measurements:
parts: 300 mm x 500 mm x 1 mm,
overall (as stored in a bag): 110 mm x 230 mm x 120 mm, .266kg
type:
model - representation
taxonomy:
  • visual and verbal communication
  • furnishing and equipment
  • tools & equipment
  • mathematical demonstration equipment
credit:
Prof. Roger Penrose

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