Anagrams of: PHOTOPOLARIMETER

• a small book usually having a paper cover

• a brief treatise on a subject of interest; published in the form of a booklet

• on or near an edge or constituting an outer boundary; the outer area

• electronic equipment external to the circuit board that contains the CPU of a computer

• related to the key issue but not of central importance

• measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source

• photographic equipment that measures the intensity of light

• a kind of thermometer for measuring heat radiation; consists of several thermocouple junctions in series

• A map made by the superimposition of aerial photographs onto grid lines, contours and other normal map features

• To produce such a map (from a photograph or existing map)

• Having symmetrically equal distribution of polarity