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A clinical thermometer may be made by impregnating spots of liquid crystal material onto a spatula. If mixed with suitable dyes the transition from solid to liquid phase is demonstrated by the colour of the spot. The spots can be arranged to change colour in increments of 0.2[d]F over the clinical temperature range such that the number of spots changing colour indicates the temperature. Liquid crystal paints are also available which can be used to demonstrate temperature distribution by colour over parts of the body.
Content and Design Copyright 2000 Dr. Malcolm C Brown. See Title Page for more details