A
grappling hook gun that the Hacksmith has recreated in real life! ... And if there's any big surprise here it's that the
gun, which is gas-powered and utilizes a kevlar rope, works prettay prettay prettay good.
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Whilst devices for firing grappling hooks do exist (I'm told the Battelle Tactical Air Initiated Launch system is good) and powerful electric motors are fairly common, merging the two to create a useful handheld device is beyond the capabilities of physics at the moment.Aug 2, 2010
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Well, you need gas cannon or a spring which could fling the hook a good distance, a cable strong enough to lift a 210 pound Batman (just a guess mind), and a winch strong enough to lift him into the air. All of this is possible in theory but probably not built into a one-handed machine.