Comments by "Diana Pennepacker" (@dianapennepacker6854) on "" video.

  1. Whoa that is awesome, and interesting. I wonder what speeds they were getting. Is that essentially some type of gas gun, but with gun powder? We just need more powerful chemicals somehow damn it. Why is physics so limiting. Think modern gun powder is about 5.5k feet per second or 1,700m/s. Come on. Know the names of the projects?
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