Glass momentum creates a relationship between two interconnected blown forms, each mutually dependent on the other's existence for balance and stability. This process embraces the melting and solidifying phase of the glass, by blowing one form after the other. The fist one is then colder and more solid, and keeps its shape better as the second one, which is much hotter and more malleable and is pressed and deformed on the first form.

The thickness of the walls of the two forms are exposed by cutting and polishing the pieces afterwards, showing the thickness of each pieces and the addition of the two walls on the part where they connect. Void and transparency accentuate this even more. In this project shows the impulsive but also the controlled aspect of glass.

These pieces were blown by Gert Bullée in the Glassworks in Leerdam, the Netherlands.