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SYMMETRY A Sketchbook of Symmetry

Author: kristian-wilson

Post on 21-Jan-2016

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  • SYMMETRYA Sketchbook of Symmetry

  • SYMMETRYA Definition?Symmetry OPERATIONSReflectionRotationOthersSymmetry ElementsMirror (plane)Rotation axis

  • SYMMETRY ELEMENTS MIRRORSplanes (lines in 2d)cuts object in halfhalves are mirror images Shown as a dotted line

  • SYMMETRY ELEMENTS MIRRORSplanes (lines in 2d)cuts object in halfhalves are mirror images Shown as a dotted line

  • Questions to ask:Reflective symmetry?Where?Draw mirror(s).

    Rotational Symmetry?Where is axis?What fold is axis?Draw axis.

  • LILY

  • HIBISCUS

  • PLUMERIA

  • Orchid

  • Tulip

  • SNOWFLAKESWilson Snowflake BentleyVermont farmerHis work is world-famous.photographing individual snowflakes.First photographOver 5000 photographsNo two alikehttp://snowflakebentley.com/

  • SNOWFLAKES

  • 2 More Examples of Snowflakes from Bentleys Photographs

  • From another source...

    Another site:http://www.its.caltech.edu/~atomic/snowcrystals/

  • Growth of a snowflake(approx. time was 5 minutes)

  • Some Further Links to Explore:Symmetry of Border Patternshttp://www.math.okstate.edu/~wolfe/border/border.htmlSymmetry of Inorganic Moleculeshttp://neon.chem.ox.ac.uk/vrchemistry/sym/splash.html

  • Field Patternshttp://mathforum.org/geometry/rugs/symmetry/fp.html

  • END

  • Symmetry References

    Symmetry of Inorganic MoleculesSnowflake BentleyGreat South CatalogOther Snowflakes

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