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Painting - Heptagon Stated By Seven Toothpicks (Between Parallels)

American History Museum

Heptagon Stated by Seven Toothpicks (Between Parallels)
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  • Heptagon Stated by Seven Toothpicks (Between Parallels)
  • Diagram for Painting Heptagon Stated by Seven Toothpicks (Between Parallels)

    Object Details

    painter

    Johnson, Crockett

    Description

    This whimsical painting is part of Crockett Johnson's exploration of ways to represent the sides and angles of a regular heptagon using line segments of equal length. In its mathematics, it follows closely the construction from isosceles triangles within a rhombus used in the painting Heptagon from Ten Equal Lines (#104 in the series - 1979.1093.71). However, both the line segments shown and the appearance of the paintings are quite different.
    Here three pairs of carefully selected equal lines at appropriate equal angles combine with a seventh line of equal length to give a construction of three sides and two angles of a regular heptagon. All but one of the endpoints of the lines lie on a parallelogram (the rhombus mentioned previously), hence the title. The segment of the heptagon is on the right side of the painting. In Crockett Johnson's figure for the work, the segment is lettered BCPE.
    The painting, in oil or acrylic on masonite, is #106 in the series. It has a dark purple background. The pairs of line segments are in turquoise, green, and lavender, with the vertical one in white. This increases the drama of the painting, but obscures the heptagon. There is a wooden frame. The painting is signed on the back: HEPTAGON STATED BY (/) SEVEN TOOTHPICKS (/) (BETWEEN PARALLELS) (/) Crockett Johnson 1973.

    Location

    Currently not on view

    Credit Line

    Ruth Krauss in memory of Crockett Johnson

    date made

    1973

    ID Number

    1979.1093.73

    catalog number

    1979.1093.73

    accession number

    1979.1093

    Object Name

    painting

    Physical Description

    masonite (substrate material)
    metal (frame material)

    Measurements

    overall: 67 cm x 41.5 cm x 2.9 cm; 26 3/8 in x 16 5/16 in x 1 1/8 in

    See more items in

    Medicine and Science: Mathematics
    Science & Mathematics
    Crockett Johnson
    Art

    Data Source

    National Museum of American History

    Metadata Usage

    CC0

    Link to Original Record

    https://n2t.net/ark:/65665/ng49ca746a5-2086-704b-e053-15f76fa0b4fa

    Record ID

    nmah_694697

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    Mathematical Paintings of Crockett Johnson

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    Where Art Meets Math

    Painting of a isosceles triangular shape with a rounded base. Shades progress from dark to lighter tints of purple to show pendulum motion

    About

    Painting of a isosceles triangular shape with a rounded base. Shades progress from dark to lighter tints of purple to show pendulum motion

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