The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street vine st and swallow street.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street vine street view.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street swallow street view.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street stairs into atrium.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street swallow street view.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street reception with alison turnbull art.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street abstract view through alison turnbull work.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street abstract atrium view through glass.

Ballistics. Gunners calculating the elevation of a piece of artillery using a clinometer and a quadrant marked with shadow scales. From Architechtur .. Mathematischen .. Kunst by Gaultherius Rivius (Nuremberg, 1547). Woodcut.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street abstract atrium view through glass.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street stairs into atrium.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street stairs into atrium.

Methods of surveying (right) and time keeping (left). On the left are various different kinds of sundials and a clock with a single arm. On the right a survey is being made of the height of the tower, using quadrants and, on the far right, a cross staff.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street facade detail.

Ptolemy (Claudius of Ptolemaeus) fl150 AD, Alexandrian Greek astronomer and geographer, using quadrant to observe moon and stars. Urania, Muse of Astronomy, instructs him. Shown wearing crown as often confused with Ptolemaic kings of Egypt.

Ptolemy observing the stars with a quadrant, guided by Astronomy, From La Margarita Philosophica by Gregor Reisch, 1503, Artist Unknown, Woodcut

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street stairs into atrium.

The Quadrant Block 1 Regent Street, London, United Kingdom, Allies and Morrison, The quadrant block 1 regent street reception with alison turnbull art.

Gunners calculating the elevation of a piece of artillery using a clinometer and a quadrant marked with shadow scales. Around them are barrels of gunpowder, cannon balls of various sizes. On the left a mortar is being discharged. From Architechtur .. Mathematischen .. Kunst by Gaultherius Rivius (Nu

Ptolemy (Claudius of Ptolemaeus c90-158) Alexandrian Greek astronomer and geographer making observations using a quadrant. Wrongly depicted as a king. British Museum

Map showing supposed location of Paradise. Garden of Eden shown as blue-tinted quadrant. After engraving of 1678 from work by Johann Herbinius (1633-1676), Silesian-born Lutheran minister

An astronomer, probably supposed to be Ptolemy of Alexandria (active 150 AD) observing the Moon and stars using a quadrant. Woodcut from Del Misuarar by Silvio Belli (Venice, 1570).