I approached this week's assignment as a chance to experiment with expanded or foamed materials. I've always been interested in porous or aerated concrete, and am interested in the idea of translucent concrete. While typically, air bubbles would be the nemesis of a good cast, my objective was essentially to maximize the amount of air that a castable material could hold, even potentially controlling the density in various regions, while still remaining structurally intact. My hope was that a mixture that reasonably satisfied constraints of lightness, translucency, and structural integrity might be lead to further research on an architectural scale. For this week's assignment I set out to make (another) lamp shade, just to have an object that would require translucency and structural stability.