A No-Tilt Sail is specially designed so it does not make the ship tilt, regardless of the size of the sail, or the direction or strength of the wind. More.

LFRR Coupling stands for light, frictionless, reciprocating and rotary-motions coupling. It performs the same operation as a crankshaft and a connecting rod do in a piston engine. However, it is lighter, is fully balanced, and (in principle) frictionless. More.

The two-form bike is a convertible bicycle that can be configured in an upright or recumbent position. It takes just a minute to change from one design to the other. More.