TIL about the Davis Gun, a WW1 era attempt to create a recoilless gun by having two guns fire forwards and backwards simultaneously. A third gun was sometimes attached to the top

https://en.wikipedia.org/wiki/Davis_gun
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1gian0e/til_about_the_davis_gun_a_ww1_era_attempt_to/