Video: The real thing can weigh upwards of 272kg, but the V8 engine Aliaksei Zholner built would barely register on a scale because it’s only slightly larger than a ping-pong ball and made from nothing but paper and glue.
The tiny engine has a piston stroke of just 6mm and cylinders that are only 5.5mm in diameter. The whole thing can be powered manually using a pair of fingers, but it’s even more impressive when connected to a can of compressed air which really gets the little V8 roaring. [YouTube via SlashGear]