Astronomical quadrant Product:Fine art poster Front view of buildings on

Front view of buildings on Aldersgate Street

It appears that being 'taken unawares' was what constituted police brutality in 1874

This picture depicts an event from the Old Testament

by Sydney Parkinson (London

Behind can be seen Lord Derby's crown and

Astronomical quadrant Product:Fine art poster Front view of buildings onA 12 inch astronomical quadrant made by John Bird. Astronomical quadrants were used to measure the angle of a celestial object from the zenith. Operated in conjunction with a transit instrument, they could be used to check the running rate of astronomical clocks known as regulators. At sea a quadrant can be used to help fix a ship's position and to determine latitude. ca. 1767