Scientific Instrument Collection

PSCI2A-00073
Greek astronomer Hipparchus mapping the stars over Alexandria, ancient Egypt. Hand-colored woodcut of a 19th-century illustration

Huygens clock diagram
Side view of Huygenss clock, showing the pendulum mechanism, 1600s. Hand-colored halftone reproduction of an illustration

PSCI2A-00059
Tycho Brahes quadrant. Hand-colored woodcut

Surveyors level, 18th century
Surveyors level from the 1700s, displayed during a reenactment at Yorktown Battlefield, Colonial National Park. Digital photograph

Surveyors compass, 18th century
Surveyors compass from the 1700s, displayed during a reenactment at Yorktown Battlefield, Colonial National Park. Digital photograph

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