• grue@lemmy.world
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    4 hours ago

    I think you may either be overestimating the effectiveness of nukes or underestimating the thickness of planets.

    Project Plowshare envisioned using nukes to dig holes on the order of hundreds of meters, not thousands of kilometers.

    • db2@lemmy.world
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      4 hours ago

      I’m doing neither one, but it’s pretty clearly not an idea for this time. We lack an awful lot to be able to pull off a project at that scale, but frankly that makes me more curious not less.

      • grue@lemmy.world
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        3 hours ago

        Even not underestimating the scale, I’m not sure it would work because all the debris would need to be ejected from the thousands-of-kilometers-deep hole. And then you’d also have to have a solution to stop the walls from caving in before the next bomb had a chance to arrive. It’s almost as if you not only need thousands of extremely powerful (even for nukes) bombs, but also need to deliver them in a continuous stream to keep the blast pressure up and the hole open.

        I feel like, at that point, the easier strategy to accomplish your goal would be redirecting a large asteroid to impact the planet, or something like that.

        • db2@lemmy.world
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          2 hours ago

          Oh, I don’t care about the surface viability. An asteroid capable of altering the core would probably liquefy a significant portion of the planet though which is also not desirable.

          The goal of the thought is to give the planet a magnetosphere closer to that of earth, anywhere between would be a success. The general idea is to get the core somewhat hotter and moving much more, which probably also means it needs a more beefy moon than it has to maintain the change for any significant amount of time.

          idk it’s just an idea I like to kick around sometimes.