The Earthquake Dragon - Let's Rewind!

What this episode covers

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. Which story do you want to hear next? #LetsRewind #ZhangHeng #AncientChina #Seismoscope #HistoryIsAwesome #ScienceHistory

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Frequently Asked Questions

How long is this episode of Let's Rewind! - Heroes Who Changed Everything - Little Thinkers!?

This episode is 17 minutes long.

When was this Let's Rewind! - Heroes Who Changed Everything - Little Thinkers! episode published?

This episode was published on February 4, 2026.

What is this episode about?

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...

Can I download this Let's Rewind! - Heroes Who Changed Everything - Little Thinkers! episode?

Yes, you can download this episode by clicking the download button on the episode player, or subscribe to the podcast in your preferred podcast app for automatic downloads.