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Watch as landmasses move across the globe over eons.

If we imagine the Earth’s history as a massive video file—let's call it the —scientists act as the video editors. By studying these magnetic "time stamps" in rocks, they can: Nrmgzmp4

Discover times when the North and South poles actually swapped places. Watch as landmasses move across the globe over eons

Opening a standard MP4 is as easy as a right-click, but "opening" NRM data requires . Scientists use these tools to measure the intensity and direction of the magnetism, effectively "streaming" the history of our planet's core. 💡 The Takeaway Opening a standard MP4 is as easy as

Natural Remanent Magnetization is the permanent magnetism locked into rocks when they first form. Just like an MP4 file captures light and sound, NRM captures the at a specific moment in geological history.

Over millions of years, chemical changes can "edit" the file, adding new layers of data. 📽️ The MP4 of Geology