World's Smallest Jigsaw Puzzle Requires One Hell Of A Steady Hand

This three-piece jigsaw puzzle may not be the most complicated but you'll need one hell of a steady hand and some excellent eye-sight to complete it.

Each of the parts is less than one millimetre in size making it the smallest in the world.

It has been created to showcase a new type of injection-moulding technique called LIGA2.X, developed at the Karlsruhe Institute of Technology in Germany.

The new technique could have a myriad of uses

Current injection moulding at such sizes requires parts be printed onto a substrate layer and then painstakingly removed.

LIGA2.X. does away with this and perfectly formed parts just come straight out of the mould and works with metals, cermaics or plastics.

It could lead to a reduction in the cost of making delicate parts such as watch mechanisms or intricate medical devices.