Jean Picard

French astronomer and geodesist

Jean Picard - Scientists & Innovators born July 21st, 1620
Born
Died
Category

Scientists & Innovators

Country

France

Links & References

Contributed significantly to the field of astronomy and geodesy in the 17th century. Developed techniques to measure the size of the Earth and improvements in astronomical instruments. Participated in the measurement of a degree of latitude in 1669, which advanced the understanding of Earth’s circumference. Worked on refining telescopes and measuring celestial bodies.

Measured the degree of latitude in 1669

Contributed to the determination of Earth's size

Improved astronomical instrumentation

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