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In this fascinating episode of "Untold Legacies," we journey back in time to uncover the life and contributions of Zhang Heng, a visionary polymath whose groundbreaking discoveries and inventions shaped the landscape of ancient Chinese science and technology. Join us as we explore the remarkable achievements of Zhang Heng, whose brilliance transcended centuries and left an indelible mark on the fields of astronomy, seismology, and engineering.

Discover Zhang Heng's early years in ancient China, where his insatiable curiosity and love for learning propelled him to become a multifaceted scholar. We delve into his pioneering work in astronomy, where he made significant advancements in celestial observation and the measurement of astronomical phenomena.

Witness Zhang Heng's groundbreaking invention, the world's first seismoscope, which revolutionized the understanding of earthquakes and their origins. His device not only detected seismic activity but also indicated the direction of the earthquake's epicenter, laying the foundation for modern seismology.