Clocks: two composite pendulums, and diagrams of their motions. Coloured engraving by J. Pass, 1809.
- Date:
- 8 November 1809
- Reference:
- 40888i
- Pictures
- Online
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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
Contributors
Lettering
Horology. Pendulums. ; J. Pass sculp.
Bears number: VII
Reference
Wellcome Collection 40888i
Type/Technique
Languages
Where to find it
Location Status Access Closed stores