A scanned copy of a photograph of an optical diffraction pattern produced by the He-Ne Continuous Gas Laser used in David Lockwood's MSc research at the University of Canterbury. David explains that the photograph shows "a typical optical diffraction pattern obtained from the original red laser beam arising from a grating structure formed by the alignment of a colloid under the influence of a travelling sound wave".
A map showing the voting pattern for the Christchurch Central electorate.
A map showing patterns of liquefaction in Mark Quigley's red-zoned Avonside property.
Graphs showing changes in voting patterns in the local body elections as a result of the 4 September earthquake.