Massimo
@Rainmaker1973
Building a LEGO-powered Submarine with automatic depth control
[ YouTube's Brick Experiment Channel: https://buff.ly/3oaZqkE]
https://video.twimg.com/ext_tw_video/1548549663602745345/pu/vid/720x404/PForcRA5ru4SMqDA.mp4
https://twitter.com/Rainmaker1973/status/1548599670867386368