Sometimes, having at hand a couple of sheets of paper and some glue you can do something truly amazing.

This is what YouTuber Aliaksei Zholner does, creating miniature models of engines. His last work is tiny V8 engine is small enough to fit in your hand, with a piston stroke of just 6mm and cylinders with a 5.5mm diameter. And it works! Obviously it doesn't actually run on gas considering that it is made out of paper, but on compressed air.

Zholner admits there is a little bit of non-paper involved, specifically ​scotch tape to help reduce friction on the valves, but it makes the whole project no less impressive.

bbabo.Net