Introduces students to basic engineering concepts while reinforcing math and science skills. Written by a professional engineer, ModelSmart 3-D allows students to interactively design and test balsa and bass wood models of bridges, cranes, towers, and all kinds of structural systems on the computer. ModelSmart 3-D analyzes the model, and load test gives numerical results and simulates the results by showing a deflected shape or collapse. System Requirements: CD-ROM drive, Pentium or Celeron compatible processor, Microsoft Windows95, 98, Me, NT, 2000, XP, Vista, 16-bit color, 32MB RAM, 5MB free hard drive space, mouse, Windows compatible sound card optional.