APPARENTLY IMPOSSIBLE OBJECTS

Historical and technical insights about apparently impossible objects

Impossible puzzles are objects that, at first sight, seem impossible to solve.
The most famous impossible puzzle is the "Ship in a Bottle".
The goal is to find out how these objects are made.

Another well-known puzzle is a cube composed of two parts connected in 4 points by apparently inseparable connections. In this case, the solution is in the different points.

There are many different puzzles that contain these features: bottles whith large objects inside, Japanese coins with wooden arrows and rings stuck in the middle of a hole, wooden balls in a frame which just opens and so many others.

Dovetail's boxes also looks imposible to solve because it seems impossible to open the lid, looking around the box. 

The apple and the arrow in the picture on the right are both made from a single piece of wood. The hole is actually too small for the arrow and there are no marks on the neck. How was it made?

Some examples are:

• Mushroom
• Pandora Box M
• XO
• Dovetail Box