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May 18, 2023 at 14:20 answer added David R timeline score: 0
May 17, 2023 at 20:23 comment added Vakus Drake @John I'm imagining you make a valve out of say tungsten carbide or ceramic and heat it enough to keep the magma flowing without deforming the valve material. After all there's a decent different between the melting point of many materials and that of magma
May 17, 2023 at 20:15 comment added John @VakusDrake you do a valve with lava it it is cold enough ot be solid ot is cold enough for the lava to solidify inside it.
May 17, 2023 at 17:42 comment added Atog This reminds me of a video I saw recently on YouTube of an attempt to cast an obsidian sword. Spoiler: It doesn't work great, but then again he wasn't using nukes.
May 17, 2023 at 3:39 answer added Atog timeline score: 2
May 16, 2023 at 23:54 comment added Vakus Drake @John I was imagining you wouldn't connect the mold to the borehole until it was already blasted and the magma was rushing up. Also you could blast most of the borehole but then manually excavated some portions so as to install something like a valve.
May 16, 2023 at 23:08 comment added John your real problem is building a mold that can survive detonating a nuke inside it. Also you have no way to turn the lava off, if it has enough pressure to erupt it will keep erupting.
May 16, 2023 at 21:15 history asked Vakus Drake CC BY-SA 4.0