Surveyor's sector, early 17th century

Made:
early 17th century in Italy and Rome
Surveyor's sector, Italian, c. 1600, engraved 'Adam Heroldt fecit Romae'. Surveyor's sector, Italian, early 17th Surveyor's sector, Italian, early 17th century, engraved "Adam Heroldt fecit Romae". The sector was invented

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Surveyor's sector, Italian, c. 1600, engraved 'Adam Heroldt fecit Romae'. Surveyor's sector, Italian, early 17th
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Surveyor's sector, Italian, early 17th century, engraved "Adam Heroldt fecit Romae". The sector was invented
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Surveyor's sector, Italian, c. 1600, engraved "Adam Heroldt fecit Romae"

Surveyor's sector, Italian, early 17th century, engraved "Adam Heroldt fecit Romae". The sector was invented independantly by Galileo and Thomas Hood at the end of the 16th century. It primarily measures proportions and can contain lines concerning trigonometry, geometrical drawing and calculations on surfaces and volumes. This instrument is on the stand and is pictured with later examples.

Details

Category:
Mathematics
Object Number:
1938-724
Materials:
box (wood), brass (copper, zinc alloy) and steel (metal)
Measurements:
overall (display): 264 mm x 287 mm x 158 mm,
type:
sector
credit:
Thomas H. Court