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Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.

This book details advances, applications, research and emerging areas of optics, photonics, computational approaches, nano-photonics and bio-photonics. It concentrates on new approaches to information systems, from bio-inspired models to information security.

The dramatic story of several generations of cavers whose exciting and dangerous explorations in Kentucky's limestone labyrinths culminated in the big connection between the Flint Ridge Cave System and Mammoth Cave, forming the longest cave in the world.