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Henry Kater's telescope Robert Benoist pictured feeding the pigeons in

SKU 29423354240
4.3
Description

pictured feeding the pigeons in Trafalgar Square

View of No 7 Angel Court

The church was built by Nicholas Hawksmoor between 1716 and 1731

and through the two-speed gearbox over 70mph was possible and even 40mph achieved up the steepest hills

Henry Kater's telescope Robert Benoist pictured feeding the pigeons inTelescope used by Henry Kater for pendulum observations. Geodesist and metrologist Henry Kater (1777 1835) invented Kater's pendulum in 1817 which enabled the strength of gravity to be determined. This sight was used to view the pendulum during observations in order to avoid parallax error. ca. 1820

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