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2024-11-11

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Stunning Video Shows How Much Earth Has Changed in 1.8 Billion Years (www.sciencealert.com)

submitted 3 months ago by [email protected] to c/[email protected]

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[–] [email protected] 6 points 3 months ago* (last edited 3 months ago)

Poor cameraman stuck in space for 1.8 billion years Guess it's true that the cameraman never dies.

[–] [email protected] 4 points 3 months ago (2 children)

I’m a bit confused by the video reconstruction I’m not going to lie: https://youtu.be/_LJG68AmZxI

[–] [email protected] 4 points 3 months ago (2 children)

What's the confusion? Maybe I can help.

Did you realize it was working backwards?

[–] [email protected] 4 points 3 months ago (2 children)

Ohhhhh yes that’s it. It was also so much more movement than I was expecting! I was expecting us to go from pangea glob to continents and then some shifty shifty but man those tectonics were BUSY.

[–] waggz 2 points 3 months ago

Pangaea is only the most recent supercontinent, and therefore the most known. there are believed to be several more iterations in this cycle of combining and breaking up large landmasses.

[–] [email protected] 2 points 3 months ago

Lots and lots of convection in that mantle.

[–] [email protected] 0 points 3 months ago

The working backwards was interesting, but also fascinating how the ratio of land to sea was so much different at the start.

[–] [email protected] 2 points 3 months ago

Is the land sea ratio due primarily to sea level changes?