Mirlyn
Well-Known Member
...from paper

http://www.techeblog.com/index.php/tech-gadget/functional-paper-v8-engineThis V8 Engine made entirely out of paper with the exception of a few parts (motor, wires, etc.), is fully functional. It features many moving parts which include “a compound crankshaft, a rapid cooling fan, 8 rods, 8 pistons and a complex compound gearbox etc.”. The engine is powered by 2×1.5V D Batteries and weighs 2.98kg.