Kater's invariable pendulum and clock for gravity observations, Sumatra mb-height 2507 View of a letter carrier

View of a letter carrier

fracture through impact

Wharves at Limehouse

Le Chapeau épinglé (Pinning the Hat)

Kater's invariable pendulum and clock for gravity observations, Sumatra mb-height 2507 View of a letter carrierFront elevation showing the Kater invariable pendulum and supporting frame before a clock as set up at the Madras Observatory and used in John Goldingham's temporary expedition observatory. With a secondary figure showing the distance from the pendulum to the small observing telescope. Figure no. 4 from Report of the length of the pendulum at the equator made on an expedition from the observatory at Madras, by John Goldingham (Madras, 1824). Scale 1