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Orb rule (beehaw.org)

submitted 3 months ago by Workerbee@beehaw.org to c/196@lemmy.blahaj.zone

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[-] jlow@beehaw.org 35 points 3 months ago

This sounds like a job for https://what-if.xkcd.com/

Is there enough obsidian on this planet? Would its weight crush the earth's crust? How would we construct it?

[-] Scrappy@feddit.nl 28 points 3 months ago

Constructing it is easy, just get a couple hundredthousand buckets of water and lava and bob's your uncle

[-] ChaoticNeutralCzech@feddit.org 23 points 3 months ago* (last edited 3 months ago)

Well, the chapter 54: Snowball in Randall's book What If? 2 contains the following, semi-related graphic:

(Maximum diameters of spheres of various materials before collapsing under their weight, which is about the same as the material's free-hanging length)