NEW VID: Why Earth Has Two Levels
Added 2018-07-11 22:26:22 +0000 UTCHi Patrons!
Did you know that Earth’s outer shell is made of two materials whose different densities and thicknesses give rise to two distinct “levels” on the planet’s surface?
Here's the video: https://youtu.be/KOv3FGVmRcA
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