Join Ben & Pia on a MEGA exciting journey to ancient China to meet Zhang Heng and his incredible bronze dragon seismoscope!
This story shows how one quiet click from a clever machine helped warn an empire about distant earthquakes. Perfect for curious minds who love science, poetry, and mystery — full of gears, dragons, and real inventions that saved lives.
Historical Fun Fact: Zhang Heng's seismoscope used a heavy pendulum and eight dragons pointing different directions so a single falling ball could tell officials which way the quake came from!
Did you know? The device once detected a quake hundreds of miles away when people in the capital felt nothing at all — riders later confirmed the exact direction the dragon pointed.
Ben & Pia guide you through the workshop, the court, and the ringing click that changed early earthquake warning forever.
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