• @[email protected]
    link
    fedilink
    English
    2915 hours ago

    Gun large enough to hit London. The barrel had to be so long that they built it into a hillside to keep it supported

    • @[email protected]
      link
      fedilink
      English
      13 hours ago

      Hmm. I’m guessing they had problems with getting enough propulsion going? The modern approach would involve some very synchronized stages, but WWII tech would make that difficult.

      Otherwise, this would be a pretty cheap way of doing the Blitz.

        • @[email protected]
          link
          fedilink
          English
          1
          edit-2
          46 minutes ago

          Yeah. Now it’d be easy to programmably trigger each charge on the order of microseconds or less, and we can make some pretty fast-shutting valves. Barrel wear is harder and would probably involve simulational fluid dynamics. More likely we’d just build a coilgun, which removes that issue very nicely, and uses similar control electronics.

          Of course, if you want to destroy a city there’s also nukes now, and anything else tends to either move or be very well protected. People have talked about this for space travel, but the trade-off between G-forces and length hurts at least as much as the rocket equation (despite being “only” quadratic instead of exponential).