21 July

27 FEB. 2004 Data publicării 1176 Vizualizări

1620: On 21 July 1620, Jean Picard was born.

Picard is regarded as the founder of modern astronomy in France. He introduced new methods, improved the old instruments and added new devices, such as Huygens's pendulum clock to record times and time intervals.

Picard was also the first to put the telescope to use for the accurate measurement of small angles.

His most important work was the first measurement of the circumference of Earth.


Linkuri similare


rămâneți informat

Abonează-te la newsletter-ul nostru pentru a primi cele mai recente știri, actualizări despre misiuni și informații exclusive direct în inbox. Fii printre primii care află despre proiectele și descoperirile noastre viitoare.