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4 lines
509 B
Plaintext
4 lines
509 B
Plaintext
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title: $:/plugins/tiddlywiki/tour/introduction-to-tiddlywiki/tiddlers/Rocky
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caption: Rocky
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Rocky planets have a core, a mantle, and a crust. They are a bit like a boiled egg: the central yolk is the core; the white albumin is the mantle; and the shell is the crust. The crust of a terrestrial planet is thin, with the core and the mantle taking up the vast bulk, sometimes with a very large core, sometimes much smaller. Terrestrial planets have metallic cores of mostly iron, with rocky mantles and crusts.
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