Universal sundial

Details Universal sundial Universal sundial

G - Physics

04

B

33/44

G04B 49/04 (2006.01)

Patent

CA 1313756

- 1 - ABSTRACT UNIVERSAL SUNDIAL A sundial has a scale 3 on the inner face of a single-turn helix 1, anda gnomon 2 which is a rod or wire lying along its axis. The scale is linear and the instrument can be used at substantially any location, regardless of latitude or longitude. It can be advanced for statutory Summer Time, and adjusted to compensate for non-linearity in the sun's apparent movement ('Equation of Time').

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