very slow current?

Can I slow the current flow?
until 1 second per 30cm.

Current flows at the speed of light, you can't 'slow' it, and why would you want to?.

maybe he means electron flow? that's controllable, I forgot the formula though. Don't feel like googling it.

I want to make a "football game". The game can be played for two man. The first man be the "striker". The second man be the "keeper". The man push the button and the ball will shooted. The ball is replicated by some led (plow). Like this, can you understand?

https://www.electro-tech-online.com/attachments/untitled-jpg.33210/
untitled.JPG