Clocks: two composite pendulums, and diagrams of their motions. Coloured engraving by J. Pass, 1809.

Date:
8 November 1809
Reference:
40888i
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Credit

Clocks: two composite pendulums, and diagrams of their motions. Coloured engraving by J. Pass, 1809. Wellcome Collection. Public Domain Mark. Source: Wellcome Collection.

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About this work

Description

These are bi-metallic pendulums, constructed to resist changes in length, and therefore period, due to temperature variations

Publication/Creation

London : J. Wilkes, 8 November 1809.

Physical description

1 print : engraving, with watercolour ; image 24.3 x 18 cm

Lettering

Horology. Pendulums. ; J. Pass sculp. Bears number: VII

Reference

Wellcome Collection 40888i

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