Comments by "Jkauppa" (@Jkauppa) on "The Slow Mo Guys" channel.

  1. arc in air, over air, for heat plasma pressure
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  2. capacitor bullets, electric propellant, steam or hot air explosion, expansion, its same as thermite reaction
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  3. liquid air pulse jet
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  4. try heat transfer hot air engine, with separate rocket stove
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  5. you say 45 mph is a bullet, more like 10x more, 800m/s or 1000m/s
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  6. try an armor with balls in a tube, multiple tubes side by side
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  7. try a pile of bearings, say, in a can/jar
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  8. try polycarb deflector sheet at 45 degrees angle or more, for bullets
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  9. shoot a reaction wheel (spinning energy storage flywheel)
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  10. how many deflecting bending steel sheets a bullet can go through
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  11. watch out for stray bullets
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  12. you can also make a bending flexing steel sheet corridor, two or four sided
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  13. glass panels in a row is a literal sand bag :)
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  14. so try the ap rounds
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  15. who does any greenhouses from brittle glass, plastic sheets instead
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