• jerome@lemmy.world
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      1 year ago

      To the idiots that will try this, don’t. There is a small chance your bullet will kill someone. It has to end up somewhere. No, it can not make it passed the Stratosphere… I mean… bullet always come back down.

        • MotoAsh@lemmy.world
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          1 year ago

          Nah, bullets don’t go anywhere near escape velocity. Escape velocity is ~11.2km/s and the fastest bullets (FAR faster than most) only go ~4000f/s, which is barely over~1.2km/s.

          Any bullet that is shot up will come back down, and not terribly far away, either. Even the biggest artillery systems only have barely over 100km range.

            • ℛ𝒶𝓋ℯ𝓃@pawb.social
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              1 year ago

              The US government tried that a long while back… The company Spinlaunch is currently working on yeeting stuff into orbit with a centrifuge… So yes, some unusual methods can work.

          • Hagdos@lemmy.world
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            10 months ago

            The moon isn’t at escape velocity either (source: It’s still there).

            Doesn’t really change the numbers probably, but you’d need a little less than 11.2 km/s to reach the moon.

            • MotoAsh@lemmy.world
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              10 months ago

              Wrong, that is not how orbital mechanics work. The moon IS below escape velocity, but it’s orthogonal to the force of gravity. It also has a 240000 mile head start on getting away, yet it’s STILL not escaping while traveling over 1km/s.

              Shooting a bullet straight up, you would have to shoot faster than escape velocity for it to even reach the moon when using simple ballistic calculations.

              There is A LOT of energy in those thousands upon thousands of miles.