Japanese Inventions

Simple but cool.
Really awesome if this works this well every time.
I would think it would make more sense to build a boat that runs off salt water.
While they were inventing this, we were using the ELEVATOR.

Ok. So my buddy sent me this forever ago. Watch the entire thing, I know it's long, but worth it if you havn't seen it before. I promise.
This is Part 2.