Heliostat by Hilger

Catalogue number #1496583806

Heliostat by Hilger 1	Heliostat by Hilger 2	Hilger Geometry

Description:

Double mirror elevated polar heliostat by Adam Hilger, London circa 1910. The double mirror heliostat was invented by Young in 1807 and re-inventer by Müller in 1894. It was then produced commercially by Max Kohl in about 1906 and a little later by Hilger. See other heliostats on this site for references and uses. Size, base diameter 14" (36 cm) Height 21" (53 cm) Mirrors diameters 4.75" (12 cm). Working order

Sale Details:

Price: £ 1600.00

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