Konstant Products is primarily a 2 man operation run and operated by: Edwin Penniman: Physics, Mathematical Modeling, System control and Automation, TIG Welding, Web Design Kris Young: Dome/ Yurt Design, Optital Engineering, Solid Modeling,Management and Accounting Our key focus at this time is the design and fabrication of portable, sustainable living environments. Other areas of interest include human powered vehicles, renewable energy, component design and manufacture, optical system design, and mathematical analysis. Our current work includes: -Compact optical Urea detection device -Ultra light aluminum tool-less Dome -Multi-story silo yurt -Backpackable 3-wheeled sail craft -Bus-able 4 wheeled electric/ pedal powered sail craft -High Speed laser pointing device ( fully computer controlled laser projection) Previous Work: -Design and Fabrication of 6 person amphibious human powered craft. TIG welded aluminum construction, total weight 450 pounds