Title

The Jacob's staff

Caption

The Jacob's staff, forerunner of the sextant, is an early astronomical instrument for measuring angles

Date

Jul 10, 2021

Credit line

Photo12/imageBROKER/Wolfgang Diederich

Reference

BRK21C49_122

Model release

No

License type

Rights managed

Available size

50.1Mb (1.9Mb) / 11.8in x 16.5in / 3526 x 4962 (300dpi)

Keywords

1 person Angle measurement appliance appliances astronomy early former instrument instruments measure measurement measures measuring measuring instrument measuring instruments measuring tool natural scientific navigation navigation device navigation devices navigation system navigation systems one person orientation science sciences scientific scientific research sextant sextants single person astronomic astronomical natural science natural sciences outer space protractor protractors universe