Michigan: University of Michigan at Ann Arbor campus exteriors. A rooftop laboratory machine used to measure light through glass block. Dr. doing research. Showing rims with pencil, demonstration of how glass block can bend light. Artificial sun moving with motors. Made to duplication the movement of the sun. Cell on track to measure light. Dr. Scientist smokes a pipe while doing research. House in Ann Arbor for Scientist with many windows and blocks to experiment with sunlight to make best possible use for sunlight in a modern house. Abundantly used blocks in kitchen. There are even block windows in the cupboard! Great light-filled modern interiors. Modern architecture.