@quos3683

It's very interesting but the camera movement (shaking) is painful and irritating, I shut the sound also so I can see and understand this video.

@susanhawkes2519

The flywheel is on the Nordic track.

@HOWBAZARY

Awesome!

@josephgreens

This video is on some wild ass shit lmao. Cool product.

@SolarpunkJackal

The second engine is cool but where's the gear train with fly wheel to do the extra work when you run out of stamina?

 Are these kind of units all human power only with no leverage-boosts to help?